Megatest

(import (prefix iup iup:))

(use canvas-draw)
(import canvas-draw-iup)

(use sqlite3 srfi-1 posix regex regex-case srfi-69 typed-records sparse-vectors) ;; defstruct
(import (prefix sqlite3 sqlite3:))
(include "/nfs/site/disks/icf_fdk_cw_gwa002/srehman/fossil/dbi/dbi.scm")
(import (prefix dbi dbi:))

(declare (uses common))
(declare (uses margs))
(declare (uses keys))
(declare (uses items))
(declare (uses db))
(declare (uses configf))

		    dbstr
		    (if (equal? (car parts) "sqlite3")
			(cadr parts)
			(begin
			  (debug:print 0 *default-log-port* "ERROR: I only know sqlite3 databases for now: " dbstr)
			  #f)))))
    (if (and dbpth (file-read-access? dbpth))
	(let ((db (sqlite3:open-database dbpth))) ;; (open-database dbpth)))
	  (sqlite3:set-busy-handler! db (make-busy-timeout 10000))
	(let ((db (dbi:open 'sqlite3 (cons (cons ('dbname dbpth) '()))))) ;; (open-database dbpth)))
	  ;;(sqlite3:set-busy-handler! db (make-busy-timeout 10000))
	  db)
	#f)))

;; sqlite3:path tablename timefieldname varfieldname field1 field2 ...
;;
(define (dboard:graph-read-data cmdstring tstart tend)
  (let* ((parts (string-split cmdstring))) ;; spaces not allowed

	      (begin
		(for-each
		 (lambda (fieldname) ;; fields
		   (let ((all-dat-qrystr (conc "SELECT " timef "," varfn "," valfn " FROM " tablen " WHERE " varfn "='" fieldname "' AND " timef " >= " tstart " AND " timef " <= " tend " ORDER BY " timef " ASC"))
			 (zeroth-point   (conc "SELECT " timef "," varfn "," valfn " FROM " tablen " WHERE " varfn "='" fieldname "' AND " timef " < " tstart " LIMIT 1")))
		     (hash-table-set! res-ht fieldname ;; (fetch-rows (sql db qrystr)))))
				      (reverse
				       (sqlite3:fold-row
				       (dbi:fold-row
					(lambda (res t var val)
					  (cons (vector t var val) res))
					'() db all-dat-qrystr)))
		     (let ((zeropt (handle-exceptions
				    exn
				    #f
				    (sqlite3:first-row db all-dat-qrystr))))
				    (dbi:get-one-row db all-dat-qrystr))))
		       (if zeropt ;; NOTE: Add zeropt to the beginning of the list as the list was reversed above.
			   (hash-table-set! res-ht
					    fieldname
					    (cons
					     (apply vector tstart (cdr zeropt))						    
					     (hash-table-ref/default res-ht fieldname '())))))))
		 fields)

(import (prefix ini-file ini:))

(use canvas-draw)
(import canvas-draw-iup)

(use sqlite3 srfi-1 posix regex regex-case srfi-69)
(import (prefix sqlite3 sqlite3:))
(include "/nfs/site/disks/icf_fdk_cw_gwa002/srehman/fossil/dbi/dbi.scm")
(import (prefix dbi dbi:))

(declare (uses configf))
(declare (uses tree))
(declare (uses margs))
;; (declare (uses dcommon))
;; (declare (uses launch))
;; (declare (uses gutils))

;;======================================================================
;; DB
;;======================================================================

(define (datashare:initialize-db db)
  (for-each
   (lambda (qry)
     (sqlite3:execute db qry))
     (dbi:exec db qry))
   (list 
    "CREATE TABLE pkgs 
         (id           INTEGER PRIMARY KEY,
          area         TEXT,
          version_name TEXT,
          store_type   TEXT DEFAULT 'copy',
          copied       INTEGER DEFAULT 0,

         (id         INTEGER PRIMARY KEY,
          storegrp   TEXT,
          path       TEXT);")))

(define (datashare:register-data db area version-name store-type submitter quality source-path comment)
  (let ((iter-qry       (sqlite3:prepare db "SELECT max(iteration) FROM pkgs WHERE area=? AND version_name=?;"))
	(next-iteration 0))
    (sqlite3:with-transaction
    (dbi:with-transaction
     db
     (lambda ()
       (sqlite3:for-each-row
       (dbi:for-each-row
	(lambda (iteration)
	  (if (and (number? iteration)
		   (>= iteration next-iteration))
	      (set! next-iteration (+ iteration 1))))
	iter-qry area version-name)
       ;; now store the data
       (sqlite3:execute db "INSERT INTO pkgs (area,version_name,iteration,store_type,submitter,source_path,quality,comment) 
       (dbi:exec db "INSERT INTO pkgs (area,version_name,iteration,store_type,submitter,source_path,quality,comment) 
                                 VALUES (?,?,?,?,?,?,?,?);"
			area version-name next-iteration (conc store-type) submitter source-path quality comment)))
    (sqlite3:finalize! iter-qry)
    (dbi:close iter-qry)
    next-iteration))

(define (datashare:get-id db area version-name iteration)
  (let ((res #f))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (id)
       (set! res id))
     db
     "SELECT id FROM pkgs WHERE area=? AND version_name=? AND iteration=?;"
     area version-name iteration)
    res))

(define (datashare:set-stored-path db id path)
  (sqlite3:execute db "UPDATE pkgs SET stored_path=? WHERE id=?;" path id))
  (dbi:exec db "UPDATE pkgs SET stored_path=? WHERE id=?;" path id))

(define (datashare:set-copied db id value)
  (sqlite3:execute db "UPDATE pkgs SET copied=? WHERE id=?;" value id))
  (dbi:exec db "UPDATE pkgs SET copied=? WHERE id=?;" value id))
  
(define (datashare:get-pkg-record db area version-name iteration)
  (let ((res #f))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (a . b)
       (set! res (apply vector a b)))
     db 
     "SELECT * FROM pkgs WHERE area=? AND version_name=? AND iteration=?;"
     area 
     version-name
     iteration)

;; is put. 
;;
;; if there is nothing at that location then the record can be removed
;; if there are no refs for a particular pkg-id then that pkg-id is a 
;; candidate for removal
;;
(define (datashare:record-pkg-ref db pkg-id dest-link)
  (sqlite3:execute db "INSERT INTO refs (pkg_id,destlink) VALUES (?,?);" pkg-id dest-link))
  (dbi:exec db "INSERT INTO refs (pkg_id,destlink) VALUES (?,?);" pkg-id dest-link))
  
(define (datashare:count-refs db pkg-id)
  (let ((res 0))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (count)
       (set! res count))
     db
     "SELECT count(id) FROM refs WHERE pkg_id=?;"
     pkg-id)
    res))

	       (handler   (make-busy-timeout 136000)))
	  (handle-exceptions
	   exn
	   (begin
	     (debug:print 2 *default-log-port* "ERROR: problem accessing db " dbpath
			  ((condition-property-accessor 'exn 'message) exn))
	     (exit))
	   (set! db (sqlite3:open-database dbpath)))
	  (if *db-write-access* (sqlite3:set-busy-handler! db handler))
	   (set! db (dbi:open 'sqlite3 (cons (cons ('dbname dbpath) '()))))
	  ;;(if *db-write-access* (sqlite3:set-busy-handler! db handler))
	  (if (not dbexists)
	      (begin
		(datashare:initialize-db db)))
	  db)
	(print "ERROR: invalid path for storing database: " path))))

(define (open-run-close-exception-handling proc idb . params)

        (print "trying db call one more time....this may never recover, if necessary kill process " (current-process-id) " on host " (get-host-name) " to clean up")))
     (apply open-run-close-exception-handling proc idb params))
   (apply open-run-close-no-exception-handling proc idb params)))

(define (open-run-close-no-exception-handling  proc idb . params)
  ;; (print "open-run-close-no-exception-handling START given a db=" (if idb "yes " "no ") ", params=" params)
  (let* ((db (cond
	      ((sqlite3:database? idb)     idb)
	      ((dbi:database? idb)     idb)
	      ((not idb)                   (print "ERROR: cannot open-run-close with #f anymore"))
	      ((procedure? idb)            (idb))
	      (else                        (print "ERROR: cannot open-run-close with #f anymore"))))
	 (res #f))
    (set! res (apply proc db params))
    (if (not idb)(sqlite3:finalize! dbstruct))
    (if (not idb)(dbi:close dbstruct))
    ;; (print "open-run-close-no-exception-handling END" )
    res))

(define open-run-close open-run-close-no-exception-handling)

(define (datashare:get-pkgs db area-filter version-filter iter-filter)
  (let ((res '()))
    (sqlite3:for-each-row ;; replace with fold ...
    (dbi:for-each-row ;; replace with fold ...
     (lambda (a . b)
       (set! res (cons (list->vector (cons a b)) res)))
     db 
     (conc "SELECT id,area,version_name,store_type,copied,source_path,iteration,submitter,datetime,storegrp,datavol,quality,disk_id,comment,stored_path "
	   " FROM pkgs WHERE area like ? AND version_name LIKE ? AND iteration " iter-filter ";")
     area-filter version-filter)
    (reverse res)))

(define (datashare:get-pkg db area-name version-name #!key (iteration #f))
  (let ((dat '())
	(res #f))
    (sqlite3:for-each-row ;; replace with fold ...
    (dbi:for-each-row ;; replace with fold ...
     (lambda (a . b)
       (set! dat (cons (list->vector (cons a b)) dat)))
     db 
     (conc "SELECT id,area,version_name,store_type,copied,source_path,iteration,submitter,datetime,storegrp,datavol,quality,disk_id,comment,stored_path "
	   " FROM pkgs WHERE area=? AND version_name=? ORDER BY iteration ASC;")
     area-name version-name)
    ;; now filter for iteration, either max if #f or specific one

		(if (null? tal)
		    hed
		    (loop (car tal)(cdr tal)))))))))

(define (datashare:get-versions-for-area db area-name #!key (version-patt #f))
  (let ((res '())
	(data (make-hash-table)))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (version-name submitter iteration submitted-time comment)
       ;;                                              0           1         2           3           4
       (hash-table-set! data version-name (vector version-name submitter iteration submitted-time comment)))
     db 
     "SELECT version_name,submitter,iteration,datetime,comment FROM pkgs WHERE area='megatest' AND version_name != 'latest' AND version_name LIKE ? ORDER BY datetime asc;"
     (or version-patt "%"))
    (map (lambda (x)(hash-table-ref data x))(sort (hash-table-keys data) string-ci>=))))

	  (create-directory targ-path #t)
	  (datashare:set-stored-path db id targ-path)
	  (print "Running command: rsync -av " source-path "/ " targ-path "/")
	  (let ((th1 (make-thread (lambda ()
				    (let ((pid (process-run "rsync" (list "-av" (conc source-path "/") (conc targ-path "/")))))
				      (process-wait pid)
				      (datashare:set-copied db id "yes")
				      (sqlite3:finalize! db)))
				      (dbi:close db)))
				   "Data copy")))
	    (thread-start! th1))
	  #t)
	(begin
	  (print "ERROR: Not enough space in storage area " dest-path)
	  (datashare:set-copied db id "no")
	  (sqlite3:finalize! db)
	  (dbi:close db)
	  #f))))

(define (datashare:get-areas configdat)
  (let* ((areadat (configf:get-section configdat "areas"))
	 (areas   (if areadat (map car areadat) '())))
    areas))

		  (datashare:set-latest db id area-name version iteration)))
	      (let ((id (datashare:get-id db area-name version iteration)))
		(datashare:set-stored-path db id spath)
		(datashare:set-copied db id "yes")
		(datashare:set-copied db id "n/a")
		(datashare:set-latest db id area-name version iteration)))
	  (print "ERROR: Failed to get an iteration number"))
      (sqlite3:finalize! db)
      (dbi:close db)
      (cons #t "Successfully saved data")))))

(define (datashare:get-best-storage configdat)
  (let* ((storage     (configf:lookup configdat "settings" "storage"))
	 (store-areas (if storage (string-split storage) '())))
    (print "Looking for available space in " store-areas)
    (datashare:find-most-space store-areas)))

				(lambda (area)
				  (let* ((path     (conc "/" (cadr area)))
					 (fullpath (conc basepath path)))
				    (if (not (hash-table-ref/default installed-dat path #f))
					(tree:add-node tb2 "Installed" (datashare:path->lst path)))
				    (hash-table-set! installed-dat path (datashare:pathdat-apply-heuristics configdat fullpath))))
				areas)
			       (sqlite3:finalize! db))))
			       (dbi:close db))))
	   (apply          (iup:button "Apply"
				       #:action
				       (lambda (obj)
					 (if curr-record
					     (let* ((area        (datashare:pkg-get-area        curr-record))
						    (stored-path (datashare:pkg-get-stored_path curr-record))
						    (source-type (datashare:pkg-get-store_type  curr-record))

				     ((link) (datashare:pkg-get-source-path curr-record))
				     ((copy) stored-path)
				     (else #f)))
		      (dest-stub   (configf:lookup configdat "areas" area))
		      (target-path (conc basepath "/" dest-stub)))
		 (datashare:build-dir-make-link stored-path target-path)
		 (datashare:record-pkg-ref db (datashare:pkg-get-id curr-record) target-path)
		 (sqlite3:finalize! db)
		 (dbi:close db)
		 (print "Creating link from " stored-path " to " target-path))))))
    ((publish)
     (if (< (length args) 3)
	 (begin 
	   (print "ERROR: Missing arguments; " (string-intersperse args ", "))
	   (exit 1))
	 (let* ((srcpath  (list-ref args 0))

			  (vector-ref x 0)
			  (vector-ref x 1) 
			  (vector-ref x 2) 
			  (conc "\"" (time->string (seconds->local-time (vector-ref x 3))) "\"")
			  (conc "\"" (vector-ref x 4) "\""))
		  (print (vector-ref x 0))))
	    versions)
       (sqlite3:finalize! db)))))
       (dbi:close db)))))

;; ease debugging by loading ~/.dashboardrc - REMOVE FROM PRODUCTION!
(let ((debugcontrolf (conc (get-environment-variable "HOME") "/.datasharerc")))
  (if (file-exists? debugcontrolf)
      (load debugcontrolf)))

(define (main)

;;     ;;; (mutex-unlock! *rundb-mutex*) ;;; why did we need a mutex on opening db's?
;;     (db:sync-tables db:sync-tests-only *megatest-db* db)
;;     db))

;; This routine creates the db if not already present. It is only called if the db is not already opened
;;
(define (db:open-db dbstruct #!key (areapath #f))
  (print (db:open-megatest-db path: (db:dbfile-path)))
  (let ((tmpdb (dbr:dbstruct-tmpdb dbstruct))) ;; RA => Returns the first reference in dbstruct
    (if tmpdb
	tmpdb
        ;; (mutex-lock! *rundb-mutex*)
        (let* ((dbpath       (db:dbfile-path)) ;;  0))
               (dbexists     (file-exists? dbpath))
	       (dbfexists    (file-exists? (conc dbpath "/megatest.db")))

	     (db:dbdat-get-db todb)
	     full-sel)

	    ;; first pass implementation, just insert all changed rows
	    (for-each 
	     (lambda (targdb)
	       (let* ((db     (db:dbdat-get-db targdb))
		      (stmth  (sqlite3:prepare db full-ins)))
		      (stmth  (dbi:prepare db full-ins)))
		 ;; (db:delay-if-busy targdb) ;; NO WAITING
		 (for-each
		  (lambda (fromdat-lst)
		    (dbi:with-transaction
		     db
		     (lambda ()
		       (for-each ;; 

;; 2. Look at run records
;;    a. If have tests that are not deleted, set state='unknown'
;;    b. ....
;;
(define (db:clean-up-rundb dbdat)
  ;; (debug:print 0 *default-log-port* "WARNING: db clean up not fully ported to v1.60, cleanup action will be on megatest.db")
  (let* ((db         (db:dbdat-get-db dbdat))
	 (count-stmt (sqlite3:prepare db "SELECT (SELECT count(id) FROM tests);"))
	 (count-stmt (dbi:prepare db "SELECT (SELECT count(id) FROM tests);"))
	(statements
	 (map (lambda (stmt)
		(sqlite3:prepare db stmt))
		(dbi:prepare db stmt))
	      (list
	       ;; delete all tests that belong to runs that are 'deleted'
	       ;; (conc "DELETE FROM tests WHERE run_id NOT IN (" (string-intersperse (map conc valid-runs) ",") ");")
	       ;; delete all tests that are 'DELETED'
	       "DELETE FROM tests WHERE state='DELETED';"
	       ))))
    ;; (db:delay-if-busy dbdat)

;; 2. Look at run records
;;    a. If have tests that are not deleted, set state='unknown'
;;    b. ....
;;
(define (db:clean-up-maindb dbdat)
  ;; (debug:print 0 *default-log-port* "WARNING: db clean up not fully ported to v1.60, cleanup action will be on megatest.db")
  (let* ((db         (db:dbdat-get-db dbdat))
	 (count-stmt (sqlite3:prepare db "SELECT (SELECT count(id) FROM runs);"))
	 (count-stmt (dbi:prepare db "SELECT (SELECT count(id) FROM runs);"))
	 (statements
	  (map (lambda (stmt)
		 (sqlite3:prepare db stmt))
		 (dbi:prepare db stmt))
	       (list
		;; delete all tests that belong to runs that are 'deleted'
		;; (conc "DELETE FROM tests WHERE run_id NOT IN (" (string-intersperse (map conc valid-runs) ",") ");")
		;; delete all tests that are 'DELETED'
		"DELETE FROM runs WHERE state='deleted';"
		)))
	 (dead-runs '()))

;; M E T A   G E T   A N D   S E T   V A R S
;;======================================================================

;; returns number if string->number is successful, string otherwise
;; also updates *global-delta*
;;
(define (db:get-var dbstruct var)
  (print dbstruct var)
  (let* ((res      #f)
	 (dbdat    (db:get-db dbstruct #f))
	 (db       (db:dbdat-get-db dbdat)))
    (dbi:for-each-row
     (lambda (val)
       (set! res val))
       (set! res (vector-ref val 0)))
     db
     "SELECT val FROM metadat WHERE var=?;" var)
    ;; convert to number if can
    (if (string? res)
	(let ((valnum (string->number res)))
	  (if valnum (set! res valnum))))
    res))

;; re-read the db over and over again for the keys since they never
;; change

;; why get the keys from the db? why not get from the *configdat*
;; using keys:config-get-fields?

(define (db:get-keys dbstruct)
  (print dbstruct)
  (if *db-keys* *db-keys* 
      (let ((res '()))
	(db:with-db dbstruct #f #f
		    (lambda (db)
		      (dbi:for-each-row 
		       (lambda (key)
			 (set! res (cons key res)))
			 (set! res (cons (vector-ref key 0) res)))
		       db
		       "SELECT fieldname FROM keys ORDER BY id DESC;")))
	(set! *db-keys* res)
	res)))

;; look up values in a header/data structure
(define (db:get-value-by-header row header field)

   dbstruct
   #f ;; this is for the main runs db
   #f ;; does not modify db
   (lambda (db)
     (let ((res #f))
       (dbi:for-each-row
	(lambda (runname)
    (print runname)
	  (set! res runname))
	db
	"SELECT runname FROM runs WHERE id=?;"
	run-id)
       res))))

(define (db:get-run-key-val dbstruct run-id key)
  (db:with-db
   dbstruct
   #f
   #f
   (lambda (db)
     (let ((res #f))
       (dbi:for-each-row
	(lambda (val)
    (print val)
	  (set! res val))
	db
	(conc "SELECT " key " FROM runs WHERE id=?;")
	run-id)
       res))))

;; keys list to key1,key2,key3 ...

;; 
(define (db:get-raw-run-stats dbstruct run-id)
  (db:with-db
   dbstruct
   run-id
   #f
   (lambda (db)
     (sqlite3:fold-row
     (dbi:fold-row
	(lambda (res state status count)
	  (cons (list state status count) res))
	'()
	db
	"SELECT state,status,count(id) AS count FROM tests WHERE run_id=? AND NOT(uname='n/a' AND item_path='') GROUP BY state,status;;"
	run-id))))

;; Update run_stats for given run_id
;; input data is a list (state status count)
;;
(define (db:update-run-stats dbstruct run-id stats)
  (db:with-db
   dbstruct
   #f
   #f
   (lambda (db)
     ;; remove previous data
     (let* ((stmt1 (sqlite3:prepare db "DELETE FROM run_stats WHERE run_id=? AND state=? AND status=?;"))
	    (stmt2 (sqlite3:prepare db "INSERT INTO run_stats (run_id,state,status,count) VALUES (?,?,?,?);"))
     (let* ((stmt1 (dbi:prepare db "DELETE FROM run_stats WHERE run_id=? AND state=? AND status=?;"))
	    (stmt2 (dbi:prepare db "INSERT INTO run_stats (run_id,state,status,count) VALUES (?,?,?,?);"))
	    (res
	     (dbi:with-transaction
	      db
	      (lambda ()
		(for-each
		 (lambda (dat)
		   (dbi:exec stmt1 run-id (car dat)(cadr dat))
		   (apply dbi:exec stmt2 run-id dat))
		 stats)))))
       (dbi:close stmt1)
       (dbi:close stmt2)
       res))))

(define (db:get-main-run-stats dbstruct run-id)
  (db:with-db
   dbstruct
   #f ;; this data comes from main
   #f
   (lambda (db)
     (sqlite3:fold-row
     (dbi:fold-row
	(lambda (res state status count)
	  (cons (list state status count) res))
	'()
	db
	"SELECT state,status,count FROM run_stats WHERE run_id=? AND run_id IN (SELECT id FROM runs WHERE state NOT IN ('DELETED','deleted'));"
	run-id))))

			(if offset (conc " OFFSET " offset) "")
			";"))
    (debug:print-info 4 *default-log-port* "runs:get-runs-by-patt qry=" qry-str " " runnamepatt)
    (vector header 
            (reverse
             (db:with-db dbstruct #f #f ;; reads db, does not write to it.
                         (lambda (db)
                           (sqlite3:fold-row
                           (dbi:fold-row
                            (lambda (res . r)
                              (cons (list->vector r) res))
                            '()
                            db
                            qry-str
                            runnamepatt)))))))

    res))

(define (db:replace-test-records dbstruct run-id testrecs)
  (db:with-db dbstruct run-id #t 
	      (lambda (db)
		(let* ((qmarks (string-intersperse (make-list (length db:test-record-fields) "?") ","))
		       (qrystr (conc "INSERT OR REPLACE INTO tests (" db:test-record-qry-selector ") VALUES (" qmarks ");"))
		       (qry    (sqlite3:prepare db qrystr)))
		       (qry    (dbi:prepare db qrystr)))
		  (debug:print 0 *default-log-port* "INFO: migrating test records for run with id " run-id)
		  (dbi:with-transaction
		   db
		   (lambda ()
		     (for-each 
		      (lambda (rec)
			;; (debug:print 0 *default-log-port* "INFO: Inserting values: " (string-intersperse (map conc (vector->list rec)) ",") "\n")

	 (keystr (string-intersperse 
		  (map (lambda (key val)
			 (conc key " like '" val "'"))
		       keynames 
		       (string-split target "/"))
		  " AND "))
	 ;; (testqry (tests:match->sqlqry testpatt))
	 (runsqry (sqlite3:prepare db (conc "SELECT id FROM runs WHERE " keystr " AND runname LIKE '" runname "';"))))
	 (runsqry (dbi:prepare db (conc "SELECT id FROM runs WHERE " keystr " AND runname LIKE '" runname "';"))))
    ;; (debug:print 8 *default-log-port* "db:test-get-paths-matching-keynames-target-new\n  runsqry=" runsqry "\n  tstsqry=" testqry)
    (dbi:for-each-row
     (lambda (rid)
       (set! row-ids (cons rid row-ids)))
     runsqry)
    (dbi:close runsqry)
    row-ids))

;; Copyright 2006-2011, Matthew Welland.
;;
;;  This program is made available under the GNU GPL version 2.0 or
;;  greater. See the accompanying file COPYING for details.
;;
;;  This program is distributed WITHOUT ANY WARRANTY; without even the
;;  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;;  PURPOSE.

;; (require-extension synch sqlite3 posix srfi-13 srfi-1 utils regex)
(use sqlite3 srfi-1 posix regex srfi-69 srfi-13 posix-extras)
(import (prefix sqlite3 sqlite3:))
(include "/nfs/site/disks/icf_fdk_cw_gwa002/srehman/fossil/dbi/dbi.scm")
(import (prefix dbi dbi:))

(declare (unit filedb))

(include "fdb_records.scm")
;; (include "settings.scm")

(define (filedb:open-db dbpath)
  (let* ((fdb      (make-filedb:fdb))
	 (dbexists (file-exists? dbpath))
	 (db (sqlite3:open-database dbpath)))
	 (db (dbi:open 'sqlite3 (cons (cons ('dbname dbpath) '())))))
    (filedb:fdb-set-db!        fdb db)
    (filedb:fdb-set-dbpath!    fdb dbpath)
    (filedb:fdb-set-pathcache! fdb (make-hash-table))
    (filedb:fdb-set-idcache!   fdb (make-hash-table))
    (filedb:fdb-set-partcache! fdb (make-hash-table))
    (sqlite3:set-busy-handler!  db (make-busy-timeout 136000))
    ;;(sqlite3:set-busy-handler!  db (make-busy-timeout 136000))
    (if (not dbexists)
	(begin
	  (sqlite3:execute db "PRAGMA synchronous = OFF;")
	  (sqlite3:execute db "CREATE TABLE names (id INTEGER PRIMARY KEY,name TEST);") ;; for future use - change path in paths table to path_id
	  (sqlite3:execute db "CREATE INDEX name_index ON names (name);")
	  (dbi:execute db "PRAGMA synchronous = OFF;")
	  (dbi:exec db "CREATE TABLE names (id INTEGER PRIMARY KEY,name TEST);") ;; for future use - change path in paths table to path_id
	  (dbi:exec db "CREATE INDEX name_index ON names (name);")
	  ;; NB// We store a useful subset of file attributes but do not attempt to store all
	  (sqlite3:execute db "CREATE TABLE paths (id        INTEGER PRIMARY KEY,
	  (dbi:exec db "CREATE TABLE paths (id        INTEGER PRIMARY KEY,
                                                   path      TEXT,
                                                   parent_id INTEGER,
                                                   mode      INTEGER DEFAULT -1,
                                                   uid       INTEGER DEFAULT -1,
                                                   gid       INTEGER DEFAULT -1,
                                                   size      INTEGER DEFAULT -1,
                                                   mtime     INTEGER DEFAULT -1);")
	  (sqlite3:execute db "CREATE INDEX path_index ON paths (path,parent_id);")
	  (sqlite3:execute db "CREATE TABLE bases (id INTEGER PRIMARY KEY,base TEXT,                  updated TIMESTAMP);")))
	  (dbi:exec db "CREATE INDEX path_index ON paths (path,parent_id);")
	  (dbi:exec db "CREATE TABLE bases (id INTEGER PRIMARY KEY,base TEXT,                  updated TIMESTAMP);")))
    ;; close the sqlite3 db and open it as needed
    (filedb:finalize-db! fdb)
    (filedb:fdb-set-db! fdb #f)
    fdb))

(define (filedb:reopen-db fdb)
  (let ((db (sqlite3:open-database (filedb:fdb-get-dbpath fdb))))
    (filedb:fdb-set-db! fdb db)
    (sqlite3:set-busy-handler!  db (make-busy-timeout 136000))))
  (let ((db (dbi:open 'sqlite3 (cons (cons ('dbname (filedb:fdb-get-dbpath fdb)) '())))))
    (filedb:fdb-set-db! fdb db)))
    ;;(sqlite3:set-busy-handler!  db (make-busy-timeout 136000))))
  
(define (filedb:finalize-db! fdb)
  (sqlite3:finalize! (filedb:fdb-get-db fdb)))
  (dbi:close (filedb:fdb-get-db fdb)))

(define (filedb:get-current-time-string)
  (string-chomp (time->string (seconds->local-time (current-seconds)))))

(define (filedb:get-base-id db path)
  (let ((stmt   (sqlite3:prepare db "SELECT id FROM bases WHERE base=?;"))
        (id-num #f))
    (sqlite3:for-each-row 
    (dbi:for-each-row 
     (lambda (num) (set! id-num num)) stmt path)
    (sqlite3:finalize! stmt)
    (dbi:close stmt)
    id-num))

(define (filedb:get-path-id db path parent)
  (let ((stmt   (sqlite3:prepare db "SELECT id FROM paths WHERE path=? AND parent_id=?;"))
        (id-num #f))
    (sqlite3:for-each-row 
    (dbi:for-each-row 
     (lambda (num) (set! id-num num)) stmt path parent)
    (sqlite3:finalize! stmt)
    (dbi:close stmt)
    id-num))

(define (filedb:add-base db path)
  (let ((existing (filedb:get-base-id db path)))
    (if existing #f
        (begin
          (sqlite3:execute db "INSERT INTO bases (base,updated) VALUES (?,?);" path (filedb:get-current-time-string))))))
          (dbi:exec db "INSERT INTO bases (base,updated) VALUES (?,?);" path (filedb:get-current-time-string))))))

;; index 	value 	field 	notes
;; 0 	inode number 	st_ino 	
;; 1 	mode 	st_mode 	bitfield combining file permissions and file type
;; 2 	number of hard links 	st_nlink 	
;; 3 	UID of owner 	st_uid 	as with file-owner
;; 4 	GID of owner 	st_gid 	
;; 5 	size 	st_size 	as with file-size
;; 6 	access time 	st_atime 	as with file-access-time
;; 7 	change time 	st_ctime 	as with file-change-time
;; 8 	modification time 	st_mtime 	as with file-modification-time
;; 9 	parent device ID 	st_dev 	ID of device on which this file resides
;; 10 	device ID 	st_rdev 	device ID for special files (i.e. the raw major/minor number)
;; 11 	block size 	st_blksize 	
;; 12 	number of blocks allocated 	st_blocks 	

(define (filedb:add-path-stat db path parent statinfo)
  (let ((stmt (sqlite3:prepare db "INSERT INTO paths (path,parent_id,mode,uid,gid,size,mtime) VALUES (?,?,?,?,?,?,?);")))
	(sqlite3:execute stmt
	(dbi:exec stmt
			 path
			 parent
			 (vector-ref statinfo 1) ;; mode
			 (vector-ref statinfo 3) ;; uid
			 (vector-ref statinfo 4) ;; gid
			 (vector-ref statinfo 5) ;; size
			 (vector-ref statinfo 8) ;; mtime
			 )
	(sqlite3:finalize! stmt))) ;;  (filedb:get-current-time-string))))
	(dbi:close stmt))) ;;  (filedb:get-current-time-string))))
  
(define (filedb:add-path db path parent)
  (let ((stmt (sqlite3:prepare db "INSERT INTO paths (path,parent_id) VALUES (?,?);")))
    (sqlite3:execute stmt path parent)
    (sqlite3:finalize! stmt)))
    (dbi:exec stmt path parent)
    (dbi:close stmt)))

(define (filedb:register-path fdb path #!key (save-stat #f))
  (let* ((db        (filedb:fdb-get-db        fdb))
	 (pathcache (filedb:fdb-get-pathcache fdb))
	 (stat      (if save-stat (file-stat path #t)))
	 (id        (hash-table-ref/default pathcache path #f)))
    (if (not db)(filedb:reopen-db fdb))

(define (filedb:drop-base fdb path)
  (print "Sorry, I don't do anything yet"))

(define (filedb:find-all fdb pattern action)
  (let* ((db     (filedb:fdb-get-db fdb))
	 (stmt   (sqlite3:prepare db "SELECT id FROM paths WHERE path like ?;"))
	 (result '()))
    (sqlite3:for-each-row 
    (dbi:for-each-row 
     (lambda (num)
       (action num)
       (set! result (cons num result))) stmt pattern)
    (sqlite3:finalize! stmt)
    (dbi:close stmt)
    result))

(define (filedb:get-path-record fdb id)
  (let* ((db        (filedb:fdb-get-db        fdb))
	 (partcache (filedb:fdb-get-partcache fdb))
	 (dat (hash-table-ref/default partcache id #f)))
    (if dat dat
	(let ((stmt (sqlite3:prepare db "SELECT path,parent_id FROM paths WHERE id=?;"))
	      (result #f))
	  (sqlite3:for-each-row 
	  (dbi:for-each-row 
	   (lambda (path parent_id)(set! result (list path parent_id))) stmt id)
	  (hash-table-set! partcache id result)
	  (sqlite3:finalize! stmt)
	  (dbi:close stmt)
	  result))))

(define (filedb:get-children fdb parent-id)
  (let* ((db        (filedb:fdb-get-db fdb))
	 (res       '()))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (id path parent-id)
       (set! res (cons (vector id path parent-id) res)))
     db "SELECT id,path,parent_id FROM paths WHERE parent_id=?;"
     parent-id)
    res))

;; retrieve all that have children and those without
;; children that match patt
(define (filedb:get-children-patt fdb parent-id search-patt)
  (let* ((db        (filedb:fdb-get-db fdb))
	 (res       '()))
    ;; first get the children that have no children
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (id path parent-id)
       (set! res (cons (vector id path parent-id) res)))
     db "SELECT id,path,parent_id FROM paths WHERE parent_id=? AND 
            (id IN (SELECT parent_id FROM paths) OR path LIKE ?);"
     parent-id search-patt)
    res))

;; Copyright 2006-2013, Matthew Welland.
;; 
;;  This program is made available under the GNU GPL version 2.0 or
;;  greater. See the accompanying file COPYING for details.
;; 
;;  This program is distributed WITHOUT ANY WARRANTY; without even the
;;  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;;  PURPOSE.

(use sqlite3 srfi-18)
(import (prefix sqlite3 sqlite3:))
(include "/nfs/site/disks/icf_fdk_cw_gwa002/srehman/fossil/dbi/dbi.scm")
(import (prefix dbi dbi:))

(declare (unit lock-queue))
(declare (uses common))
(declare (uses tasks))

;;======================================================================
;; attempt to prevent overlapping updates of rollup files by queueing

(define (lock-queue:delete-lock-db dbdat)
  (let ((fname (lock-queue:db-dat-get-path dbdat)))
    (system (conc "rm -f " fname "*"))))

(define (lock-queue:open-db fname #!key (count 10))
  (let* ((actualfname (conc fname ".lockdb"))
	 (dbexists (file-exists? actualfname))
	 (db       (sqlite3:open-database actualfname))
	 (handler  (make-busy-timeout 136000)))
	 (db       (dbi:open 'sqlite3 (cons (cons ('dbname actualfname) '())))))
	 ;;(handler  (make-busy-timeout 136000)))
    (if dbexists
	(vector db actualfname)
	(begin
	  (handle-exceptions
	   exn
	   (begin
	     (thread-sleep! 10)
	     (if (> count 0)
		 (lock-queue:open-db fname count: (- count 1))
		 (vector db actualfname)))
	   (sqlite3:with-transaction
	   (dbi:with-transaction
	    db
	    (lambda ()
	      (sqlite3:execute 
	      (dbi:exec 
	       db
	       "CREATE TABLE IF NOT EXISTS queue (
     	         id         INTEGER PRIMARY KEY,
                 test_id    INTEGER,
                 start_time INTEGER,
                 state      TEXT,
                 CONSTRAINT queue_constraint UNIQUE (test_id));")
	      (sqlite3:execute
	      (dbi:exec
	       db
	       "CREATE TABLE IF NOT EXISTS runlocks (
                 id         INTEGER PRIMARY KEY,
                 test_id    INTEGER,
                 run_lock   TEXT,
                 CONSTRAINT runlock_constraint UNIQUE (run_lock));"))))))
    (sqlite3:set-busy-handler! db handler)
    ;;(sqlite3:set-busy-handler! db handler)
    (vector db actualfname)))

(define (lock-queue:set-state dbdat test-id newstate #!key (remtries 10))
  (tasks:wait-on-journal (lock-queue:db-dat-get-path dbdat) 1200)
  (handle-exceptions
   exn
   (if (> remtries 0)
       (begin
	 (debug:print 0 *default-log-port* "WARNING: exception on lock-queue:set-state. Trying again in 30 seconds.")
	 (debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
	 (thread-sleep! 30)
	 (lock-queue:set-state dbdat test-id newstate remtries: (- remtries 1)))
       (begin
	 (debug:print-error 0 *default-log-port* " Failed to set lock state for test with id " test-id ", error: " ((condition-property-accessor 'exn 'message) exn) ", giving up.")
	 #f))
   (sqlite3:execute (lock-queue:db-dat-get-db dbdat) "UPDATE queue SET state=? WHERE test_id=?;"
   (dbi:exec (lock-queue:db-dat-get-db dbdat) "UPDATE queue SET state=? WHERE test_id=?;"
		    newstate
		    test-id)))

(define (lock-queue:any-younger? dbdat mystart test-id #!key (remtries 10))
  ;; no need to wait on journal on read only queries
  ;; (tasks:wait-on-journal (lock-queue:db-dat-get-path dbdat) 1200)
  (handle-exceptions
   exn
   (if (> remtries 0)
       (begin
	 (debug:print 0 *default-log-port* "WARNING: exception on lock-queue:any-younger. Removing lockdb and trying again in 5 seconds.")
	 (debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
	 (thread-sleep! 5)
         (lock-queue:delete-lock-db dbdat)
	 (lock-queue:any-younger? dbdat mystart test-id remtries: (- remtries 1)))
       (begin
	 (debug:print-error 0 *default-log-port* " Failed to find younger locks for test with id " test-id ", error: " ((condition-property-accessor 'exn 'message) exn) ", giving up.")
	 #f))
   (let ((res #f))
     (sqlite3:for-each-row
     (dbi:for-each-row
      (lambda (tid)
	;; Actually this should not be needed as mystart cannot be simultaneously less than and test-id same as 
	(if (not (equal? tid test-id)) 
	    (set! res tid)))
      (lock-queue:db-dat-get-db dbdat)
      "SELECT test_id FROM queue WHERE start_time > ?;" mystart)
     res)))

	      (debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
	      (thread-sleep! 10)
	      ;; (if (> count 0)	
	      ;;  #f ;; (lock-queue:get-lock dbdat test-id count: (- count 1)) - give up on retries 
	      ;; (begin ;; never recovered, remote the lock file and return #f, no lock obtained
	      (lock-queue:delete-lock-db dbdat)
	      #f)
	    (sqlite3:with-transaction
	    (dbi:with-transaction
	     db
	     (lambda ()
	       (sqlite3:for-each-row (lambda (tid lockstate)
	       (dbi:for-each-row (lambda (tid lockstate)
				       (set! res (list tid lockstate)))
				     lckqry)
	       (if res
		   (if (equal? (car res) test-id)
		       #t ;; already have the lock
		       #f)
		   (begin
		     (sqlite3:execute mklckqry test-id)
		     (dbi:exec mklckqry test-id)
		     ;; if no error handled then return #t for got the lock
		     #t)))))))
      (sqlite3:finalize! lckqry)
      (sqlite3:finalize! mklckqry)
      (dbi:close lckqry)
      (dbi:close mklckqry)
      result)))

(define (lock-queue:release-lock fname test-id #!key (count 10))
  (let* ((dbdat (lock-queue:open-db fname)))
    (tasks:wait-on-journal (lock-queue:db-dat-get-path dbdat) 1200 "lock-queue:release-lock; waiting on journal")
    (handle-exceptions
     exn
     (begin
       (debug:print 0 *default-log-port* "WARNING: Failed to release queue lock. Will try again in few seconds")
       (debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
       (thread-sleep! (/ count 10))
       (if (> count 0)
	   (begin
	     (sqlite3:finalize! (lock-queue:db-dat-get-db dbdat))
	     (dbi:close (lock-queue:db-dat-get-db dbdat))
	     (lock-queue:release-lock fname test-id count: (- count 1)))
	   (let ((journal (conc fname "-journal")))
	     ;; If we've tried ten times and failed there is a serious problem
	     ;; try to remove the lock db and allow it to be recreated
	     (handle-exceptions
	      exn
	      #f
	      (if (file-exists? journal)(delete-file journal))
	      (if (file-exists? fname)  (delete-file fname))
	      #f))))
     (sqlite3:execute (lock-queue:db-dat-get-db dbdat) "DELETE FROM runlocks WHERE test_id=?;" test-id)
     (sqlite3:finalize! (lock-queue:db-dat-get-db dbdat)))))
     (dbi:exec (lock-queue:db-dat-get-db dbdat) "DELETE FROM runlocks WHERE test_id=?;" test-id)
     (dbi:close (lock-queue:db-dat-get-db dbdat)))))

(define (lock-queue:steal-lock dbdat test-id #!key (count 10))
  (debug:print-info 0 *default-log-port* "Attempting to steal lock at " (lock-queue:db-dat-get-path dbdat))
  (tasks:wait-on-journal (lock-queue:db-dat-get-path dbdat) 1200 "lock-queue:steal-lock; waiting on journal")
  (handle-exceptions
   exn
   (begin
     (debug:print 0 *default-log-port* "WARNING: Failed to steal queue lock. Will try again in few seconds")
     (debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
     (thread-sleep! 10)
     (if (> count 0)
	 (lock-queue:steal-lock dbdat test-id count: (- count 1))
	 #f))
   (sqlite3:execute (lock-queue:db-dat-get-db dbdat) "DELETE FROM runlocks WHERE run_lock='locked';"))
   (dbi:exec (lock-queue:db-dat-get-db dbdat) "DELETE FROM runlocks WHERE run_lock='locked';"))
  (lock-queue:get-lock dbdat test-it))

;; returns #f if ok to skip the task
;; returns #t if ok to proceed with task
;; otherwise waits
;;
(define (lock-queue:wait-turn fname test-id #!key (count 10)(waiting-msg #f))
  (let* ((dbdat   (lock-queue:open-db fname))
	 (mystart (current-seconds))
	 (db      (lock-queue:db-dat-get-db dbdat)))
    ;; (tasks:wait-on-journal (lock-queue:db-dat-get-path dbdat) 1200 waiting-msg: "lock-queue:wait-turn; waiting on journal file")
    (handle-exceptions
     exn
     (begin
       (debug:print 0 *default-log-port* "WARNING: Failed to find out if it is ok to skip the wait queue. Will try again in few seconds")
       (debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
       (print-call-chain (current-error-port))
       (thread-sleep! 10)
       (if (> count 0)
	   (begin
	     (sqlite3:finalize! db)
	     (dbi:close db)
	     (lock-queue:wait-turn fname test-id count: (- count 1)))
	   (begin
	     (debug:print 0 *default-log-port* "Giving up calls to lock-queue:wait-turn for test-id " test-id " at path " fname ", printing call chain")
	     (print-call-chain (current-error-port))
	     #f)))
     ;; wait 10 seconds and then check to see if someone is already updating the html
     (thread-sleep! 10)
     (if (not (lock-queue:any-younger? dbdat mystart test-id)) ;; no processing in flight, must try to start processing
	 (begin
	   (tasks:wait-on-journal (lock-queue:db-dat-get-path dbdat) 1200 waiting-msg: "lock-queue:wait-turn; waiting on journal file")
	   (sqlite3:execute
	   (dbi:exec
	    db
	    "INSERT OR REPLACE INTO queue (test_id,start_time,state) VALUES (?,?,'waiting');"
	    test-id mystart)
	   ;; (thread-sleep! 1) ;; give other tests a chance to register
	   (let ((result 
		  (let loop ((younger-waiting (lock-queue:any-younger? dbdat mystart test-id)))
		    (if younger-waiting
			(begin
			  ;; no need for us to wait. mark in the lock queue db as skipping
			  ;; no point in marking anything in the queue - simply never register this
			  ;; test as it is *covered* by a previously started update to the html file
			  ;; (lock-queue:set-state dbdat test-id "skipping")
			  #f) ;; let the calling process know that nothing needs to be done
			(if (lock-queue:get-lock dbdat test-id)
			    #t
			    (if (> (- (current-seconds) mystart) 36000) ;; waited too long, steal the lock
				(lock-queue:steal-lock dbdat test-id)
				(begin
				  (thread-sleep! 1)
				  (loop (lock-queue:any-younger? dbdat mystart test-id)))))))))
	     (sqlite3:finalize! db)
	     (dbi:close db)
	     result))))))
	  
            
;; (use trace)
;; (trace lock-queue:get-lock lock-queue:release-lock lock-queue:wait-turn lock-queue:any-younger? lock-queue:set-state)

;; (include "megatest-version.scm")

;; fake out readline usage of toplevel-command
(define (toplevel-command . a) #f)

(use sqlite3 srfi-1 posix regex regex-case srfi-69 base64 readline apropos json http-client directory-utils rpc typed-records;; (srfi 18) extras)
     http-client srfi-18 extras format) ;;  zmq extras)
(include "/nfs/site/disks/icf_fdk_cw_gwa002/srehman/fossil/dbi/dbi.scm")
(import (prefix dbi dbi:))

;; Added for csv stuff - will be removed
;;
(use sparse-vectors)

(import (prefix sqlite3 sqlite3:))
(import (prefix base64 base64:))

				  (loop (+ row 1) 0 '() (append result (list curr-row))))
				 (else
				  (loop row (+ col 1) (append curr-row (list val)) result)))))))))
		    (hash-table-keys results))))
		((sqlite3)
		 (let* ((db-file   (or out-file (pathname-file input-db)))
			(db-exists (file-exists? db-file))
			(db        (sqlite3:open-database db-file)))
		   (if (not db-exists)(sqlite3:execute db "CREATE TABLE data (sheet,section,var,val);"))
			(db        (dbi:open 'sqlite3 (cons (cons ('dbname db-file) '())))))
		   (if (not db-exists)(dbi:exec db "CREATE TABLE data (sheet,section,var,val);"))
		   (configf:map-all-hier-alist
		    data
		    (lambda (sheetname sectionname varname val)
		      (sqlite3:execute db
		      (dbi:exec db
				       "INSERT OR REPLACE INTO data (sheet,section,var,val) VALUES (?,?,?,?);"
				       sheetname sectionname varname val)))
		   (sqlite3:finalize! db)))
		   (dbi:close db)))
		(else
		 (pp data))))))
      (if out-file (close-output-port out-port))
      (exit) ;; yes, bending the rules here - need to exit since this is a utility
      ))

(if (args:get-arg "-ping")

;; so writes/reads don't slow down central access.
;;======================================================================

(require-extension (srfi 18) extras)
(use sqlite3 srfi-1 posix regex regex-case srfi-69 csv-xml s11n md5 message-digest base64)
(import (prefix sqlite3 sqlite3:))
(import (prefix base64 base64:))
(include "/nfs/site/disks/icf_fdk_cw_gwa002/srehman/fossil/dbi/dbi.scm")
(import (prefix dbi dbi:))

(declare (unit sdb))

;; 
(define (sdb:open fname)
  (let* ((dbpath    (pathname-directory fname))
	 (dbexists  (let ((fe (file-exists? fname)))
		      (if fe 
			  fe
			  (begin
			    (create-directory dbpath #t)
			    #f))))
	 (sdb        (sqlite3:open-database fname))
	 (sdb        (dbi:open 'sqlite3 (cons (cons ('dbname fname) '()))))
	 (handler   (make-busy-timeout 136000)))
    (sqlite3:set-busy-handler! sdb handler)
    ;;(sqlite3:set-busy-handler! sdb handler)
    (if (not dbexists)
	(sdb:initialize sdb))
    (sqlite3:execute sdb "PRAGMA synchronous = 1;")
    (dbi:exec sdb "PRAGMA synchronous = 1;")
    sdb))

(define (sdb:initialize sdb)
  (sqlite3:execute sdb "CREATE TABLE IF NOT EXISTS strs
  (dbi:exec sdb "CREATE TABLE IF NOT EXISTS strs
                           (id  INTEGER PRIMARY KEY,
                            str TEXT,
                        CONSTRAINT str UNIQUE (str));")
  (sqlite3:execute sdb "CREATE INDEX IF NOT EXISTS strindx ON strs (str);"))
  (dbi:exec sdb "CREATE INDEX IF NOT EXISTS strindx ON strs (str);"))

;; (define sumup (let ((a 0))(lambda (x)(set! a (+ x a)) a)))

(define (sdb:register-string sdb str)
  (sqlite3:execute sdb "INSERT OR IGNORE INTO strs (str) VALUES (?);" str))
  (dbi:exec sdb "INSERT OR IGNORE INTO strs (str) VALUES (?);" str))

(define (sdb:string->id sdb str-cache str)
  (let ((id (hash-table-ref/default str-cache str #f)))
    (if (not id)
	(sqlite3:for-each-row
	(dbi:for-each-row
	 (lambda (sid)
	   (set! id sid)
	   (hash-table-set! str-cache str id))
	 sdb
	 "SELECT id FROM strs WHERE str=?;" str))
    id))

(define (sdb:id->string sdb id-cache id)
  (let ((str (hash-table-ref/default id-cache id #f)))
    (if (not str)
	(sqlite3:for-each-row
	(dbi:for-each-row
	 (lambda (istr)
	   (set! str istr)
	   (hash-table-set! id-cache id str))
	 sdb
	 "SELECT str FROM strs WHERE id=?;" id))
    str))

      (case cmd
	((setup)   (set! sdb (if (not sdb)
				 (sdb:open (if var var fname)))))
	((setdb)    (set! sdb var))
	((getdb)    sdb)
	((finalize) (if sdb
			(begin
			  (sqlite3:finalize! sdb)
			  (dbi:close sdb)
			  (set! sdb #f))))
	((getid)     (let ((id (if (or (number? var)
				       (string->number var))
				   var
				   (sdb:string->id sdb scache var))))
		       (if id
			   id

;; Copyright 2006-2012, Matthew Welland.
;; 
;;  This program is made available under the GNU GPL version 2.0 or
;;  greater. See the accompanying file COPYING for details.
;; 
;;  This program is distributed WITHOUT ANY WARRANTY; without even the
;;  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;;  PURPOSE.

;;  strftime('%m/%d/%Y %H:%M:%S','now','localtime')

(use sqlite3 srfi-1 posix regex regex-case srfi-69 dot-locking format)
(import (prefix sqlite3 sqlite3:))
(include "/nfs/site/disks/icf_fdk_cw_gwa002/srehman/fossil/dbi/dbi.scm")
(import (prefix dbi dbi:))


(declare (unit tasks))
(declare (uses db))
(declare (uses rmt))
(declare (uses common))

(include "task_records.scm")

			     (else (dbi:open 'sqlite3 '((dbname . ":memory:")))))) ;; (never-give-up-open-db dbpath))
	      (handler      (make-busy-timeout 36000)))

	 (if (and exists
		  (not write-access))
	     (set! *db-write-access* write-access)) ;; only unset so other db's also can use this control
	 ;;(sqlite3:set-busy-handler! mdb handler)
	 (db:set-sync mdb) ;; (sqlite3:execute mdb (conc "PRAGMA synchronous = 0;"))
	 (db:set-sync mdb) ;; (dbi:exec mdb (conc "PRAGMA synchronous = 0;"))
	 ;;  (if (or (and (not exists)
	 ;; 	      (file-write-access? *toppath*))
	 ;; 	 (not (file-read-access? dbpath)))
	 ;;      (begin
	 ;; 
	 ;; TASKS QUEUE MOVED TO main.db
	 ;;
	 ;; (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS tasks_queue (id INTEGER PRIMARY KEY,
	 ;; (dbi:exec mdb "CREATE TABLE IF NOT EXISTS tasks_queue (id INTEGER PRIMARY KEY,
         ;;                        action TEXT DEFAULT '',
         ;;                        owner TEXT,
         ;;                        state TEXT DEFAULT 'new',
         ;;                        target TEXT DEFAULT '',
         ;;                        name TEXT DEFAULT '',
         ;;                        testpatt TEXT DEFAULT '',
         ;;                        keylock TEXT,

	(tasks:server-set-available mdb run-id)
	(thread-sleep! (/ (random 1500) 1000)) ;; (thread-sleep! 2) ;; Try removing this. It may not be needed.
	(tasks:server-am-i-the-server? mdb run-id))
      #f))
	
;; register that this server may come online (first to register goes though with the process)
(define (tasks:server-set-available mdb run-id)
  (sqlite3:execute 
  (dbi:exec 
   mdb 
   "INSERT INTO servers (pid,hostname,port,pubport,start_time,      priority,state,mt_version,heartbeat,   interface,transport,run_id)
                   VALUES(?, ?,       ?,   ?, strftime('%s','now'), ?,       ?,    ?,-1,?,        ?,        ?);"
   (current-process-id)          ;; pid
   (get-host-name)               ;; hostname
   -1                            ;; port
   -1                            ;; pubport
   (random 1000)                 ;; priority (used a tiebreaker on get-available)
   "available"                   ;; state
   (common:version-signature)    ;; mt_version
   -1                            ;; interface
   ;; (conc (server:get-transport)) ;; transport
   (conc *transport-type*)    ;; transport
   run-id
   ))

(define (tasks:num-in-available-state mdb run-id)
  (let ((res 0))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (num-in-queue)
       (set! res num-in-queue))
     mdb
     "SELECT count(id) FROM servers WHERE run_id=? AND state = 'available' AND (strftime('%s','now') - start_time) < 30 ;"
     run-id)
    res))

(define (tasks:num-servers-non-zero-running mdb)
  (let ((res 0))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (num-running)
       (set! res num-running))
     mdb
     "SELECT count(id) FROM servers WHERE run_id != 0 AND state = 'running';")
    res))

(define (tasks:server-clean-out-old-records-for-run-id mdb run-id tag)
  (sqlite3:execute mdb "UPDATE servers SET state=?,heartbeat=strftime('%s','now') WHERE state in ('available','dbprep','shutting-down') AND (strftime('%s','now') - start_time) > 50 AND run_id=?;"
  (dbi:exec mdb "UPDATE servers SET state=?,heartbeat=strftime('%s','now') WHERE state in ('available','dbprep','shutting-down') AND (strftime('%s','now') - start_time) > 50 AND run_id=?;"
		   (conc "defunct" tag) run-id))

(define (tasks:server-force-clean-running-records-for-run-id mdb run-id tag)
  (sqlite3:execute mdb "UPDATE servers SET state=?,heartbeat=strftime('%s','now') WHERE state = 'running' AND run_id=?;"
  (dbi:exec mdb "UPDATE servers SET state=?,heartbeat=strftime('%s','now') WHERE state = 'running' AND run_id=?;"
		   (conc "defunct" tag) run-id))

(define (tasks:server-force-clean-run-record mdb run-id iface port tag)
  (sqlite3:execute mdb "UPDATE servers SET state=?,heartbeat=strftime('%s','now') WHERE state = 'running' AND run_id=? AND interface=? AND port=?;"
  (dbi:exec mdb "UPDATE servers SET state=?,heartbeat=strftime('%s','now') WHERE state = 'running' AND run_id=? AND interface=? AND port=?;"
		   (conc "defunct" tag) run-id iface port))


;; BB> adding missing func for --list-servers
(define (tasks:server-deregister mdb hostname #!key (pullport #f) (pid #f) (action #f)) ;;pullport pid: pid action: 'delete))
  (if (eq? action 'delete)
      (sqlite3:execute mdb "DELETE FROM servers WHERE pid=? AND port=? AND hostname=?;" pid pullport hostname)
      (sqlite3:execute mdb "UPDATE servers SET state='defunct', heartbeat=strftime('%s','now') WHERE hostname=? AND pid=?;"
      (dbi:exec mdb "DELETE FROM servers WHERE pid=? AND port=? AND hostname=?;" pid pullport hostname)
      (dbi:exec mdb "UPDATE servers SET state='defunct', heartbeat=strftime('%s','now') WHERE hostname=? AND pid=?;"
                       hostname pid)))

(define (tasks:server-delete-records-for-this-pid mdb tag)
  (sqlite3:execute mdb "UPDATE servers SET state=?,heartbeat=strftime('%s','now') WHERE hostname=? AND pid=?;"
  (dbi:exec mdb "UPDATE servers SET state=?,heartbeat=strftime('%s','now') WHERE hostname=? AND pid=?;"
		   (conc "defunct" tag) (get-host-name) (current-process-id)))

(define (tasks:server-delete-record mdb server-id tag) 
  (sqlite3:execute mdb "UPDATE servers SET state=?,heartbeat=strftime('%s','now') WHERE id=?;"
  (dbi:exec mdb "UPDATE servers SET state=?,heartbeat=strftime('%s','now') WHERE id=?;"
		   (conc "defunct" tag) server-id)
  ;; use this opportuntity to clean out records over one month old or over 10 minutes old with port = -1 (i.e. a never used placeholder)
  (sqlite3:execute mdb "DELETE FROM servers WHERE state not in ('running','shutting-down','dbprep') AND (strftime('%s','now') - start_time) > 2628000;")
  (sqlite3:execute mdb "DELETE FROM servers WHERE state like 'defunct%' AND port=-1 AND (strftime('%s','now') - start_time) > 600;")
  (dbi:exec mdb "DELETE FROM servers WHERE state not in ('running','shutting-down','dbprep') AND (strftime('%s','now') - start_time) > 2628000;")
  (dbi:exec mdb "DELETE FROM servers WHERE state like 'defunct%' AND port=-1 AND (strftime('%s','now') - start_time) > 600;")
  )

(define (tasks:server-set-state! mdb server-id state)
  (sqlite3:execute mdb "UPDATE servers SET state=?,heartbeat=strftime('%s','now') WHERE id=?;" state server-id))
  (dbi:exec mdb "UPDATE servers SET state=?,heartbeat=strftime('%s','now') WHERE id=?;" state server-id))

(define (tasks:server-set-interface-port mdb server-id interface port)
  (sqlite3:execute mdb "UPDATE servers SET interface=?,port=?,heartbeat=strftime('%s','now') WHERE id=?;" interface port server-id))
  (dbi:exec mdb "UPDATE servers SET interface=?,port=?,heartbeat=strftime('%s','now') WHERE id=?;" interface port server-id))

;; Get random port not used in long time
;;
(define (tasks:server-get-next-port mdb)
  (let* ((lownum        30000)
	(highnum        64000)
	(used-ports     '())
	(get-rand-port  (lambda ()
			  (+ lownum (random (- highnum lownum)))))
	(port-param     (if (and (args:get-arg "-port")
				 (string->number (args:get-arg "-port")))
			    (string->number (args:get-arg "-port"))
			    #f))
	;; (config-port    (if (and (config-lookup  *configdat* "server" "port")
	;; 			 (string->number (config-lookup  *configdat* "server" "port")))
	;; 		    (string->number (config-lookup  *configdat* "server" "port"))
	;; 		    #f))
	)
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (port)
       (set! used-ports (cons port used-ports)))
     mdb
     "SELECT port FROM servers;")
    (cond
     ((and port-param res)   (if (> res port-param) res port-param))
     (port-param             port-param)

;; Use: (db:get-value-by-header (car (db:get-rows dat)) (db:get-header dat) "fieldname")
;;  to extract info from the structure returned
;;
(define (tasks:server-get-servers-vying-for-run-id mdb run-id)
   (let* ((header (list "id" "hostname" "pid" "interface" "port" "pubport" "state" "run_id" "priority" "start_time"))
	  (selstr (string-intersperse header ","))
	  (res    '()))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (a . b)
       (set! res (cons (apply vector a b) res)))
     mdb
     (conc "SELECT " selstr " FROM servers WHERE run_id=? AND state in ('available','running','dbprep') ORDER BY start_time DESC;")
     run-id)
    (vector header res)))

       (print-call-chain (current-error-port))
       (if (> retries 0)
	   (begin
	     (debug:print 0 *default-log-port* " trying call to tasks:get-server again in 10 seconds")
	     (thread-sleep! 10)
	     (tasks:get-server mdb run-id retries: (- retries 0)))
	   (debug:print 0 *default-log-port* "10 tries of tasks:get-server all crashed and burned. Giving up and returning \"no server found\"")))
     (sqlite3:for-each-row
     (dbi:for-each-row
      (lambda (id interface port pubport transport pid hostname)
	(set! res (vector id interface port pubport transport pid hostname)))
      mdb
      ;; removed:
      ;; strftime('%s','now')-heartbeat < 10 AND mt_version = ?
      "SELECT id,interface,port,pubport,transport,pid,hostname FROM servers
          WHERE run_id=? AND state='running'
          ORDER BY start_time DESC LIMIT 1;" run-id) ;; (common:version-signature) run-id)
     res)))

(define (tasks:server-running-or-starting? mdb run-id)
  (let ((res #f))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (id)
       (set! res id))
     mdb ;; NEEDS dbprep ADDED
     "SELECT id FROM servers WHERE run_id=? AND (state = 'running' OR (state = 'dbprep' AND  (strftime('%s','now') - start_time) < 60));" run-id)
    res))

(define (tasks:server-running? mdb run-id)
  (let ((res #f))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (id)
       (set! res id))
     mdb ;; NEEDS dbprep ADDED
     "SELECT id FROM servers WHERE run_id=? AND state = 'running';" run-id)
    res))

(define (tasks:need-server run-id)

                         (server:read-dotserver *toppath*))) ;; no point in trying
                (loop (tasks:get-server (db:delay-if-busy tdbdat) run-id)(+ delay-time 1))
                #f))
          #f)))

(define (tasks:get-all-servers mdb)
  (let ((res '()))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (id pid hostname interface port pubport start-time priority state mt-version last-update transport run-id)
       ;;                       0  1     2         3      4     5          6        7     8          9          10        11     12
       (set! res (cons (vector id pid hostname interface port pubport start-time priority state mt-version last-update transport run-id) res)))
     mdb
     "SELECT id,pid,hostname,interface,port,pubport,start_time,priority,state,mt_version,strftime('%s','now')-heartbeat AS last_update,transport,run_id 
        FROM servers WHERE state NOT LIKE 'defunct%' ORDER BY start_time DESC;")
    res))

(define (tasks:get-server-by-id mdb id)
  (let ((res #f))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (id pid hostname interface port pubport start-time priority state mt-version last-update transport run-id)
       ;;                       0  1     2         3      4     5          6        7     8          9          10        11     12
       (set! res (vector id pid hostname interface port pubport start-time priority state mt-version last-update transport run-id)))
     mdb
     "SELECT id,pid,hostname,interface,port,pubport,start_time,priority,state,mt_version,strftime('%s','now')-heartbeat AS last_update,transport,run_id 
        FROM servers WHERE id=?;"
     id)
    res))

(define (tasks:get-server-records mdb run-id)
  (let ((res '()))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (id pid hostname interface port pubport start-time priority state mt-version last-update transport run-id)
       ;;                       0  1     2         3      4     5          6        7     8          9          10        11     12
       (set! res (cons (vector id pid hostname interface port pubport start-time priority state mt-version last-update transport run-id) res)))
     mdb
     "SELECT id,pid,hostname,interface,port,pubport,start_time,priority,state,mt_version,strftime('%s','now')-heartbeat AS last_update,transport,run_id 
        FROM servers WHERE run_id=? AND state NOT LIKE 'defunct%' ORDER BY start_time DESC;"
     run-id)

    ))
    
;;======================================================================
;; M O N I T O R S
;;======================================================================

(define (tasks:remove-monitor-record mdb)
  (sqlite3:execute mdb "DELETE FROM monitors WHERE pid=? AND hostname=?;"
  (dbi:exec mdb "DELETE FROM monitors WHERE pid=? AND hostname=?;"
		   (current-process-id)
		   (get-host-name)))

(define (tasks:get-monitors mdb)
  (let ((res '()))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (a . rem)
       (set! res (cons (apply vector a rem) res)))
     mdb
     "SELECT id,pid,strftime('%m/%d/%Y %H:%M',datetime(start_time,'unixepoch'),'localtime'),strftime('%m/%d/%Y %H:%M:%S',datetime(last_update,'unixepoch'),'localtime'),hostname,username FROM monitors ORDER BY last_update ASC;")
    (reverse res)
    ))

			  (tasks:monitor-get-username    monitor)))
		monitors)
	   "\n"))))
   
;; update the last_update field with the current time and
;; if any monitors appear dead, remove them
(define (tasks:monitors-update mdb)
  (sqlite3:execute mdb "UPDATE monitors SET last_update=strftime('%s','now') WHERE pid=? AND hostname=?;"
  (dbi:exec mdb "UPDATE monitors SET last_update=strftime('%s','now') WHERE pid=? AND hostname=?;"
			  (current-process-id)
			  (get-host-name))
  (let ((deadlist '()))
    (sqlite3:for-each-row
    (dbi:for-each-row
     (lambda (id pid host last-update delta)
       (print "Going to delete stale record for monitor with pid " pid " on host " host " last updated " delta " seconds ago")
       (set! deadlist (cons id deadlist)))
     mdb 
     "SELECT id,pid,hostname,last_update,strftime('%s','now')-last_update AS delta FROM monitors WHERE delta > 700;")
    (sqlite3:execute mdb (conc "DELETE FROM monitors WHERE id IN ('" (string-intersperse (map conc deadlist) "','") "');")))
    (dbi:exec mdb (conc "DELETE FROM monitors WHERE id IN ('" (string-intersperse (map conc deadlist) "','") "');")))
  )
(define (tasks:register-monitor db port)
  (let* ((pid (current-process-id))
	 (hostname (get-host-name))
	 (userinfo (user-information (current-user-id)))
	 (username (car userinfo)))
    (print "Register monitor, pid: " pid ", hostname: " hostname ", port: " port ", username: " username)
    (sqlite3:execute db "INSERT INTO monitors (pid,start_time,last_update,hostname,username) VALUES (?,strftime('%s','now'),strftime('%s','now'),?,?);"
    (dbi:exec db "INSERT INTO monitors (pid,start_time,last_update,hostname,username) VALUES (?,strftime('%s','now'),strftime('%s','now'),?,?);"
		     pid hostname username)))

(define (tasks:get-num-alive-monitors mdb)
  (let ((res 0))
    (sqlite3:for-each-row 
    (dbi:for-each-row 
     (lambda (count)
       (set! res count))
     mdb
     "SELECT count(id) FROM monitors WHERE last_update < (strftime('%s','now') - 300) AND username=?;"
     (car (user-information (current-user-id))))
    res))

;; register a task
(define (tasks:add dbstruct action owner target runname testpatt params)
  (db:with-db 
   dbstruct #f #t
   (lambda (db)
     (sqlite3:execute db "INSERT INTO tasks_queue (action,owner,state,target,name,testpatt,params,creation_time,execution_time)
     (dbi:exec db "INSERT INTO tasks_queue (action,owner,state,target,name,testpatt,params,creation_time,execution_time)
                             VALUES (?,?,'new',?,?,?,?,strftime('%s','now'),0);" 
		      action
		      owner
		      target
		      runname
		      testpatt
		      (if params params "")))))

(define (tasks:snag-a-task dbstruct)
  (let ((res    #f)
	(keytxt (conc (current-process-id) "-" (get-host-name) "-" (car (user-information (current-user-id))))))
    (db:with-db
     dbstruct #f #t
     (lambda (db)
       ;; first randomly set a new to pid-hostname-hostname
       (sqlite3:execute
       (dbi:exec
	db 
	"UPDATE tasks_queue SET keylock=? WHERE id IN
           (SELECT id FROM tasks_queue 
              WHERE state='new' OR 
                    (state='waiting' AND (strftime('%s','now')-execution_time) > 10) OR
                    state='reset'
              ORDER BY RANDOM() LIMIT 1);" keytxt)

       (sqlite3:for-each-row
       (dbi:for-each-row
	(lambda (id . rem)
	  (set! res (apply vector id rem)))
	db
	"SELECT id,action,owner,state,target,name,test,item,params,creation_time,execution_time FROM tasks_queue WHERE keylock=? ORDER BY execution_time ASC LIMIT 1;" keytxt)
       (if res ;; yep, have work to be done
	   (begin
	     (sqlite3:execute db "UPDATE tasks_queue SET state='inprogress',execution_time=strftime('%s','now') WHERE id=?;"
	     (dbi:exec db "UPDATE tasks_queue SET state='inprogress',execution_time=strftime('%s','now') WHERE id=?;"
			      (tasks:task-get-id res))
	     res)
	   #f)))))

(define (tasks:reset-stuck-tasks dbstruct)
  (let ((res '()))
    (db:with-db
     dbstruct #f #t
     (lambda (db)
       (sqlite3:for-each-row
       (dbi:for-each-row
	(lambda (id delta)
	  (set! res (cons id res)))
	db
	"SELECT id,strftime('%s','now')-execution_time AS delta FROM tasks_queue WHERE state='inprogress' AND delta>700 ORDER BY delta DESC LIMIT 2;")
       (sqlite3:execute 
       (dbi:exec 
	db 
	(conc "UPDATE tasks_queue SET state='reset' WHERE id IN ('" (string-intersperse (map conc res) "','") "');")
	)))))

;; return all tasks in the tasks_queue table
;;
(define (tasks:get-tasks dbstruct types states)
  (let ((res '()))
    (db:with-db
     dbstruct #f #f
     (lambda (db)
       (sqlite3:for-each-row
       (dbi:for-each-row
	(lambda (id . rem)
	  (set! res (cons (apply vector id rem) res)))
	db
	(conc "SELECT id,action,owner,state,target,name,test,item,params,creation_time,execution_time 
                  FROM tasks_queue "
	      ;; WHERE  
	      ;;   state IN " statesstr " AND 
	      ;;   action IN " actionsstr 
	      " ORDER BY creation_time DESC;"))
       res))))

(define (tasks:get-last dbstruct target runname)
  (let ((res #f))
    (db:with-db
     dbstruct #f #f
     (lambda (db)
       (sqlite3:for-each-row
       (dbi:for-each-row
	(lambda (id . rem)
	  (set! res (apply vector id rem)))
	db
	(conc "SELECT id,action,owner,state,target,name,testpatt,keylock,params,creation_time,execution_time 
                  FROM tasks_queue 
 	       WHERE  
	        target = ? AND name =?
	       ORDER BY creation_time DESC LIMIT 1;")
	target runname)
       res))))

;; remove tasks given by a string of numbers comma separated
(define (tasks:remove-queue-entries dbstruct task-ids)
  (db:with-db
   dbstruct #f #t
   (lambda (db)
     (sqlite3:execute db (conc "DELETE FROM tasks_queue WHERE id IN (" task-ids ");")))))
     (dbi:exec db (conc "DELETE FROM tasks_queue WHERE id IN (" task-ids ");")))))

(define (tasks:process-queue dbstruct)
  (let* ((task   (tasks:snag-a-task dbstruct))
	 (action (if task (tasks:task-get-action task) #f)))
    (if action (print "tasks:process-queue task: " task))
    (if action
	(case (string->symbol action)

			  (tasks:task-get-params task)))
		tasks) "\n"))))
   
(define (tasks:set-state dbstruct task-id state)
  (db:with-db 
   dbstruct #f #t
   (lambda (db)
     (sqlite3:execute db "UPDATE tasks_queue SET state=? WHERE id=?;" 
     (dbi:exec db "UPDATE tasks_queue SET state=? WHERE id=?;" 
		      state 
		      task-id))))

;;======================================================================
;; Access using task key (stored in params; (hash-table->alist flags) hostname pid
;;======================================================================

(define (tasks:param-key->id dbstruct task-params)
  (db:with-db
   dbstruct #f #f
   (lambda (db)
     (handle-exceptions
      exn
      #f
      (sqlite3:first-result db "SELECT id FROM tasks_queue WHERE params LIKE ?;"
      (dbi:get-one db "SELECT id FROM tasks_queue WHERE params LIKE ?;"
			    task-params)))))

(define (tasks:set-state-given-param-key dbstruct param-key new-state)
  (db:with-db
   dbstruct #f #t
   (lambda (db)
     (sqlite3:execute db "UPDATE tasks_queue SET state=? WHERE params LIKE ?;" new-state param-key))))
     (dbi:exec db "UPDATE tasks_queue SET state=? WHERE params LIKE ?;" new-state param-key))))

(define (tasks:get-records-given-param-key dbstruct param-key state-patt action-patt test-patt)
  (db:with-db
   dbstruct #f #f
   (lambda (db)
     (handle-exceptions
      exn
      '()
      (sqlite3:first-row db "SELECT id,action,owner,state,target,name,testpatt,keylock,params WHERE
      (dbi:get-one-row db "SELECT id,action,owner,state,target,name,testpatt,keylock,params WHERE
                               params LIKE ? AND state LIKE ? AND action LIKE ? AND testpatt LIKE ?;"
			 param-key state-patt action-patt test-patt)))))

(define (tasks:find-task-queue-records dbstruct target run-name test-patt state-patt action-patt)
  ;; (handle-exceptions
  ;;  exn
  ;;  '()
  ;;  (sqlite3:first-row
  (let ((db (db:delay-if-busy (db:get-db dbstruct #f)))
	(res '()))
    (sqlite3:for-each-row 
    (dbi:for-each-row 
     (lambda (a . b)
       (set! res (cons (cons a b) res)))
     db "SELECT id,action,owner,state,target,name,testpatt,keylock,params FROM tasks_queue 
           WHERE
              target = ? AND name = ? AND state LIKE ? AND action LIKE ? AND testpatt LIKE ?;"
     target run-name state-patt action-patt test-patt)
    res)) ;; )

;; Database access
;;======================================================================

(require-extension (srfi 18) extras tcp)
(use sqlite3 srfi-1 posix regex regex-case srfi-69 csv-xml s11n md5 message-digest base64)
(import (prefix sqlite3 sqlite3:))
(import (prefix base64 base64:))
(include "/nfs/site/disks/icf_fdk_cw_gwa002/srehman/fossil/dbi/dbi.scm")
(import (prefix dbi dbi:))

(declare (unit tdb))
(declare (uses common))
(declare (uses keys))
(declare (uses ods))
(declare (uses client))

				   	(set! dbdat (cons (cons 'dbname ":memory:") dbdat)))))
	     (tdb-writeable       (and (file-write-access? work-area)
				       (file-write-access? dbpath)))
	     (handler   (make-busy-timeout (if (args:get-arg "-override-timeout")
					       (string->number (args:get-arg "-override-timeout"))
					       136000))))
	
	(if (and tdb-writeable
		 *db-write-access*)
	    (sqlite3:set-busy-handler! db handler))
	;;(if (and tdb-writeable
	;;	 *db-write-access*)
	;;    (sqlite3:set-busy-handler! db handler))
	(if (not dbexists)
	    (begin
	      (db:set-sync db) ;; (sqlite3:execute db "PRAGMA synchronous = FULL;")
	      (debug:print-info 11 *default-log-port* "Initialized test database " dbpath)
	      (tdb:testdb-initialize db)))
	;; (sqlite3:execute db "PRAGMA synchronous = 0;")
	(debug:print-info 11 *default-log-port* "open-test-db END (sucessful)" work-area)
	;; now let's test that everything is correct
	(handle-exceptions
	 exn
	 (begin
	   (print-call-chain (current-error-port))
	   (debug:print-error 0 *default-log-port* "problem accessing test db " work-area ", you probably should clean and re-run this test or remove the file " 
			dbpath ".\n  "
			((condition-property-accessor 'exn 'message) exn))
	   #f)
	 ;; Is there a cheaper single line operation that will check for existance of a table
	 ;; and raise an exception ?
	 (sqlite3:execute db "SELECT id FROM test_data LIMIT 1;"))
	 (dbi:exec db "SELECT id FROM test_data LIMIT 1;"))
	db)
      ;; no work-area or not readable - create a placeholder to fake rest of world out
      (let ((baddb (sqlite3:open-database ":memory:")))
      (let ((baddb (dbi:open 'sqlite3 '((dbname . ":memory:")))))
 	(debug:print-info 11 *default-log-port* "open-test-db END (unsucessful)" work-area)
 	;; provide an in-mem db (this is dangerous!)
 	(tdb:testdb-initialize baddb)
 	baddb)))

;; find and open the testdat.db file for an existing test
(define (tdb:open-test-db-by-test-id test-id #!key (work-area #f))

			work-area
			(db:test-get-rundir-from-test-id dbstruct run-id test-id)))
	 (tdb        (open-test-db test-path)))
    (apply proc tdb params)))

(define (tdb:testdb-initialize db)
  (debug:print 11 *default-log-port* "db:testdb-initialize START")
  (sqlite3:with-transaction
  (dbi:with-transaction
   db
   (lambda ()
     (for-each
      (lambda (sqlcmd)
	(sqlite3:execute db sqlcmd))
	(dbi:exec db sqlcmd))
      (list "CREATE TABLE IF NOT EXISTS test_rundat (
              id INTEGER PRIMARY KEY,
              update_time TIMESTAMP,
              cpuload INTEGER DEFAULT -1,
              diskfree INTEGER DEFAULT -1,
              diskusage INTGER DEFAULT -1,
              run_duration INTEGER DEFAULT 0);"

              CONSTRAINT metadat_constraint UNIQUE (var));"))))
  (debug:print 11 *default-log-port* "db:testdb-initialize END"))

;; This routine moved to db:read-test-data
;;
(define (tdb:read-test-data tdb test-id categorypatt)
  (let ((res '()))
    (sqlite3:for-each-row 
    (dbi:for-each-row 
     (lambda (id test_id category variable value expected tol units comment status type)
       (set! res (cons (vector id test_id category variable value expected tol units comment status type) res)))
     tdb
     "SELECT id,test_id,category,variable,value,expected,tol,units,comment,status,type FROM test_data WHERE test_id=? AND category LIKE ? ORDER BY category,variable;" test-id categorypatt)
    (sqlite3:finalize! tdb)
    (dbi:close tdb)
    (reverse res)))

;;======================================================================
;; T E S T   D A T A 
;;======================================================================

;; ;; get a list of test_data records matching categorypatt

				       (conc (vector-ref b 2)))
			     #f))
		     (string<? (conc time-a)(conc time-b))))))))

;; 
(define (tdb:remote-update-testdat-meta-info run-id test-id work-area cpuload diskfree minutes)
  (let ((tdb         (rmt:open-test-db-by-test-id run-id test-id work-area: work-area)))
    (if (sqlite3:database? tdb)
    (if (dbi:database? tdb)
	(begin
	  (sqlite3:execute tdb "INSERT INTO test_rundat (update_time,cpuload,diskfree,run_duration) VALUES (strftime('%s','now'),?,?,?);"
	  (dbi:exec tdb "INSERT INTO test_rundat (update_time,cpuload,diskfree,run_duration) VALUES (strftime('%s','now'),?,?,?);"
			   cpuload diskfree minutes)
	  (sqlite3:finalize! tdb))
	  (dbi:close tdb))
	(debug:print 2 *default-log-port* "Can't update testdat.db for test " test-id " read-only or non-existant"))))