Megatest

;; timestamp type (val1 val2 ...)
;; type: meta-info, step
(define *incoming-data*      '())
(define *incoming-last-time* (current-seconds))
(define *incoming-mutex*     (make-mutex))
(define *cache-on* #f)

(define (db:set-sync db)
  (let* ((syncval  (config-lookup *configdat* "setup"     "synchronous"))
	 (val      (cond   ;; 0 | OFF | 1 | NORMAL | 2 | FULL;
		    ((not syncval) #f)
		    ((string->number syncval)
		     (let ((val (string->number syncval)))
		       (if (member val '(0 1 2)) val #f)))
		    ((string-match (regexp "yes" #t) syncval) 1)
		    ((string-match (regexp "no"  #t) syncval) 0)
		    ((string-match (regexp "(off|normal|full)" #t) syncval) syncval)
		    (else 
		     (debug:print 0 "ERROR: synchronous must be 0,1,2,OFF,NORMAL or FULL, you provided: " syncval)
		     #f))))
    (if val
	(begin
	  (debug:print 2 "INFO: Setting pragma synchronous to " val)
	  (sqlite3:execute db (conc "PRAGMA synchronous = '" val "';"))))))

(define (open-db) ;;  (conc *toppath* "/megatest.db") (car *configinfo*)))
  (let* ((dbpath    (conc *toppath* "/megatest.db")) ;; fname)
	 (dbexists  (file-exists? dbpath))
	 (db        (sqlite3:open-database dbpath)) ;; (never-give-up-open-db dbpath))
	 (handler   (make-busy-timeout (if (args:get-arg "-override-timeout")
					   (string->number (args:get-arg "-override-timeout"))
					   36000)))) ;; 136000)))
    (debug:print 4 "INFO: dbpath=" dbpath)
    (sqlite3:set-busy-handler! db handler)
    (if (not dbexists)
	(db:initialize db))
    (db:set-sync db)
    db))

;; keeping it around for debugging purposes only
(define (open-run-close-no-exception-handling  proc idb . params)
  (let* ((db   (if idb idb (open-db)))
	 (res #f))
    (set! res (apply proc db params))
    (if (not idb)(sqlite3:finalize! db))
    res))

(define (open-run-close-exception-handling proc idb . params)
  (let ((runner (lambda ()
		  (let* ((db   (if idb idb (open-db)))
			 (res #f))
		    (set! res (apply proc db params))
		    (if (not idb)(sqlite3:finalize! db))
		    res))))
    (handle-exceptions
     exn
     (begin
       (debug:print 0 "EXCEPTION: database probably overloaded?")
       (debug:print 0 "  " ((condition-property-accessor 'exn 'message) exn))
       (print-call-chain)
       (thread-sleep! (random 120))
       (debug:print 0 "trying db call one more time....")
       (runner))
     (runner))))

(define open-run-close open-run-close-exception-handling)

(define *global-delta* 0)
(define *last-global-delta-printed* 0)

(define (open-run-close-measure  proc idb . params)
  (let* ((start-ms (current-milliseconds))
	 (db       (if idb idb (open-db)))
         (throttle (string->number (config-lookup *configdat* "setup" "throttle"))))

    (db:set-sync db)
    (set! res      (apply proc db params))
    (if (not idb)(sqlite3:finalize! db))
    ;; scale by 10, average with current value.
    (set! *global-delta* (/ (+ *global-delta* (* (- (current-milliseconds) start-ms)
						 (if throttle throttle 0.01)))
			    2))
    (if (> (abs (- *last-global-delta-printed* *global-delta*)) 0.08) ;; don't print all the time, only if it changes a bit
	(begin
	  (debug:print 1 "INFO: launch throttle factor=" *global-delta*)
	  (set! *last-global-delta-printed* *global-delta*)))
    res))

(define (db:initialize db)
  (let* ((configdat (car *configinfo*))  ;; tut tut, global warning...
	 (keys     (config-get-fields configdat))
	 (havekeys (> (length keys) 0))
	 (keystr   (keys->keystr keys))
	 (fieldstr (keys->key/field keys)))
    (for-each (lambda (key)
		(let ((keyn (vector-ref key 0)))
		  (if (member (string-downcase keyn)
			      (list "runname" "state" "status" "owner" "event_time" "comment" "fail_count"
				    "pass_count"))
		      (begin
			(print "ERROR: your key cannot be named " keyn " as this conflicts with the same named field in the runs table")
			(system (conc "rm -f " dbpath))
			(exit 1)))))
	      keys)
    (sqlite3:execute db "PRAGMA synchronous = OFF;")
    (sqlite3:execute db "CREATE TABLE IF NOT EXISTS keys (id INTEGER PRIMARY KEY, fieldname TEXT, fieldtype TEXT, CONSTRAINT keyconstraint UNIQUE (fieldname));")
    (for-each (lambda (key)
		(sqlite3:execute db "INSERT INTO keys (fieldname,fieldtype) VALUES (?,?);" (key:get-fieldname key)(key:get-fieldtype key)))
	      keys)
    (sqlite3:execute db (conc 
			 "CREATE TABLE IF NOT EXISTS runs (id INTEGER PRIMARY KEY, " 
			 fieldstr (if havekeys "," "")

                                status TEXT DEFAULT 'n/a',
                                type TEXT DEFAULT '',
                              CONSTRAINT test_data_constraint UNIQUE (test_id,category,variable));")
    ;; Must do this *after* running patch db !! No more. 
    (db:set-var db "MEGATEST_VERSION" megatest-version)
    ))

;; Create the sqlite db for the individual test(s)
(define (open-test-db testpath) 
  (if (and (directory? testpath)
	   (file-read-access? testpath))
      (let* ((dbpath    (conc testpath "/testdat.db"))
	     (dbexists  (file-exists? dbpath))
	     (db        (sqlite3:open-database dbpath)) ;; (never-give-up-open-db dbpath))
	     (handler   (make-busy-timeout (if (args:get-arg "-override-timeout")
					       (string->number (args:get-arg "-override-timeout"))
					       36000))))
	(debug:print 4 "INFO: test dbpath=" dbpath)
	(sqlite3:set-busy-handler! db handler)
	(if (not dbexists)
	    (begin
	      (sqlite3:execute db "PRAGMA synchronous = FULL;")
	      (debug:print 0 "Initialized test database " dbpath)
	      (db:testdb-initialize db)))
	;; (sqlite3:execute db "PRAGMA synchronous = 0;")
	db)
      #f))

;; find and open the testdat.db file for an existing test
(define (db:open-test-db-by-test-id db test-id)
  (let* ((test-path (db:test-get-rundir-from-test-id db test-id)))
    (open-test-db test-path)))

(define (db:testdb-initialize db)
  (for-each
   (lambda (sqlcmd)
     (sqlite3:execute 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);"
	 "CREATE TABLE IF NOT EXISTS test_data (
              id INTEGER PRIMARY KEY,
              test_id INTEGER,
              category TEXT DEFAULT '',
              variable TEXT,
	      value REAL,
	      expected REAL,
	      tol REAL,
              units TEXT,
              comment TEXT DEFAULT '',
              status TEXT DEFAULT 'n/a',
              type TEXT DEFAULT '',
              CONSTRAINT test_data_constraint UNIQUE (test_id,category,variable));"
	 "CREATE TABLE IF NOT EXISTS test_steps (
              id INTEGER PRIMARY KEY,
              test_id INTEGER, 
              stepname TEXT, 
              state TEXT DEFAULT 'NOT_STARTED', 
              status TEXT DEFAULT 'n/a',
              event_time TIMESTAMP,
              comment TEXT DEFAULT '',
              logfile TEXT DEFAULT '',
              CONSTRAINT test_steps_constraint UNIQUE (test_id,stepname,state));"
	 ;; test_meta can be used for handing commands to the test
	 ;; e.g. KILLREQ
	 ;;      the ackstate is set to 1 once the command has been completed
	 "CREATE TABLE IF NOT EXISTS test_meta (
              id INTEGER PRIMARY KEY,
              var TEXT,
              val TEXT,
              ackstate INTEGER DEFAULT 0,
              CONSTRAINT metadat_constraint UNIQUE (var));")))

;;======================================================================
;; TODO:
;;   put deltas into an assoc list with version numbers
;;   apply all from last to current
;;======================================================================
(define (patch-db db)
  (handle-exceptions

       (db:set-var db "MEGATEST_VERSION" megatest-version))))))

;;======================================================================
;; meta get and set vars
;;======================================================================

;; returns number if string->number is successful, string otherwise
;; also updates *global-delta*
(define (db:get-var db var)
  (let* ((start-ms (current-milliseconds))
         (throttle (let ((t  (config-lookup *configdat* "setup" "throttle")))
		     (if t (string->number t) t)))
	 (res      #f))
    (sqlite3:for-each-row
     (lambda (val)
       (set! res val))
     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))))
    ;; scale by 10, average with current value.
    (set! *global-delta* (/ (+ *global-delta* (* (- (current-milliseconds) start-ms)
						 (if throttle throttle 0.01)))
			    2))
    (if (> (abs (- *last-global-delta-printed* *global-delta*)) 0.08) ;; don't print all the time, only if it changes a bit
	(begin
	  (debug:print 4 "INFO: launch throttle factor=" *global-delta*)
	  (set! *last-global-delta-printed* *global-delta*)))
    res))

(define (db:set-var db var val)
  (sqlite3:execute db "INSERT OR REPLACE INTO metadat (var,val) VALUES (?,?);" var val))

;; use a global for some primitive caching, it is just silly to re-read the db 
;; over and over again for the keys since they never change



(define (db:get-keys db)
  (if *db-keys* *db-keys* 
      (let ((res '()))
	(sqlite3:for-each-row 
	 (lambda (key keytype)
	   (set! res (cons (vector key keytype) res)))
	 db

		             remfields))
	 (keystr     (conc (keys->keystr keys) ","
		           (string-intersperse remfields ",")))
	 (qrystr     (conc "SELECT " keystr " FROM runs WHERE (" runpattstr ") " ;; runname LIKE ? "
		           ;; Generate: " AND x LIKE 'keypatt' ..."
		           (if (null? keypatts) ""
		               (conc " AND "
				     (string-join 
				      (map (lambda (keypatt)
					     (let ((key  (car keypatt))
						   (patt (cadr keypatt)))
					       (db:patt->like key patt)))
					   keypatts)
				      " AND ")))
		           " ORDER BY event_time DESC "
		           (if (number? count)
		               (conc " LIMIT " count)
		               "")
		           (if (number? offset)
		               (conc " OFFSET " offset)
		               ""))))

	   (set! res (apply vector a x)))
	 db
	 (conc "SELECT " keystr " FROM runs WHERE id=?;")
	 run-id)
	(let ((finalres (vector header res)))
	  (hash-table-set! *run-info-cache* run-id finalres)
	  finalres))))

(define (db:set-comment-for-run db run-id comment)
  (sqlite3:execute db "UPDATE runs SET comment=? WHERE id=?;" comment run-id))

;; does not (obviously!) removed dependent data. But why not!!?
(define (db:delete-run db run-id)
  (sqlite3:execute db "DELETE FROM runs WHERE id=?;" run-id))

(define (db:update-run-event_time db run-id)
  (sqlite3:execute db "UPDATE runs SET event_time=strftime('%s','now') WHERE id=?;" run-id)) 

(define (db:lock/unlock-run db run-id lock unlock user)

	    (set! res (cons (list (key:get-fieldname key) key-val) res)))
	  db qry run-id)))
     keys)
    (reverse res)))

;; get key vals for a given run-id
(define (db:get-key-vals db run-id)
  (let ((mykeyvals (hash-table-ref/default *keyvals* run-id #f)))
    (if mykeyvals 
	mykeyvals
	(let* ((keys (get-keys db))
	       (res  '()))
	  (debug:print 6 "keys: " keys " run-id: " run-id)
	  (for-each 
	   (lambda (key)
	     (let ((qry (conc "SELECT " (key:get-fieldname key) " FROM runs WHERE id=?;")))
	       ;; (debug:print 0 "qry: " qry)
	       (sqlite3:for-each-row 
		(lambda (key-val)
		  (set! res (cons key-val res)))
		db qry run-id)))
	   keys)
	  (let ((final-res (reverse res)))
	    (hash-table-set! *keyvals* run-id final-res)
	    final-res)))))

;; The target is keyval1/keyval2..., cached in *target* as it is used often
(define (db:get-target db run-id)
  (let ((mytarg (hash-table-ref/default *target* run-id #f)))
    (if mytarg
	mytarg
	(let* ((keyvals (db:get-key-vals db run-id))
	       (thekey  (string-intersperse (map (lambda (x)(if x x "-na-")) keyvals) "/")))
	  (hash-table-set! *target* run-id thekey)
	  thekey))))

;;======================================================================
;;  T E S T S
;;======================================================================

(define (db:tests-register-test db run-id test-name item-path)
  (debug:print 4 "INFO: db:tests-register-test db=" db ", run-id=" run-id ", test-name=" test-name ", item-path=\"" item-path "\"")
  (let ((item-paths (if (equal? item-path "")
			(list item-path)
			(list item-path ""))))
    (for-each 
     (lambda (pth)
       (sqlite3:execute db "INSERT OR IGNORE INTO tests (run_id,testname,event_time,item_path,state,status) VALUES (?,?,strftime('%s','now'),?,'NOT_STARTED','n/a');" 
			run-id 
			test-name
			pth))
     item-paths)
    #f))


;; states and statuses are lists, turn them into ("PASS","FAIL"...) and use NOT IN
;; i.e. these lists define what to NOT show.
;; states and statuses are required to be lists, empty is ok
;; not-in #t = above behaviour, #f = must match
(define (db:get-tests-for-run db run-id testpatt itempatt states statuses 
			      #!key (not-in #t)

     run-id
     ;; (if testpatt testpatt "%")
     ;; (if itempatt itempatt "%"))
     )
    res))

;; this one is a bit broken BUG FIXME
(define (db:delete-test-step-records db test-id)
  ;; Breaking it into two queries for better file access interleaving
  (let* ((tdb (db:open-test-db-by-test-id db test-id)))
    ;; test db's can go away - must check every time

    (if tdb



	(begin
	  (sqlite3:execute tdb "DELETE FROM test_steps;")

	  (sqlite3:execute tdb "DELETE FROM test_data;")

	  (sqlite3:finalize! tdb)))))


;; 
(define (db:delete-test-records db tdb test-id #!key (force #f))
  (if tdb 
      (begin
	(sqlite3:execute tdb "DELETE FROM test_steps;")
	(sqlite3:execute tdb "DELETE FROM test_data;")))
  ;; (sqlite3:execute db "DELETE FROM tests WHERE id=?;" test-id))
  (if db 
      (begin
	(sqlite3:execute db "DELETE FROM test_steps WHERE test_id=?;" test-id)
	(sqlite3:execute db "DELETE FROM test_data  WHERE test_id=?;" test-id)
	(if force
	    (sqlite3:execute db "DELETE FROM tests WHERE id=?;" test-id)
	    (sqlite3:execute db "UPDATE tests SET state='DELETED',status='n/a' WHERE id=?;" test-id)))))

(define (db:delete-tests-for-run db run-id)
  (sqlite3:execute db "DELETE FROM tests WHERE run_id=?;" run-id))

(define (db:delete-old-deleted-test-records db)
  (let ((targtime (- (current-seconds)(* 30 24 60 60)))) ;; one month in the past
    (sqlite3:execute db "DELETE FROM tests WHERE state='DELETED' AND event_time<?;" targtime)))

;; set tests with state currstate and status currstatus to newstate and newstatus
;; use currstate = #f and or currstatus = #f to apply to any state or status respectively
;; WARNING: SQL injection risk
(define (db:set-tests-state-status db run-id testnames currstate currstatus newstate newstatus)
  (for-each (lambda (testname)
	      (let ((qry (conc "UPDATE tests SET state=?,status=? WHERE "
			       (if currstate  (conc "state='" currstate "' AND ") "")
			       (if currstatus (conc "status='" currstatus "' AND ") "")
			       " run_id=? AND testname=? AND NOT (item_path='' AND testname in (SELECT DISTINCT testname FROM tests WHERE testname=? AND item_path != ''));")))
		;;(debug:print 0 "QRY: " qry)
		(sqlite3:execute db qry run-id newstate newstatus testname testname)))
	    testnames))

(define (db:delete-tests-in-state db run-id state)
  (sqlite3:execute db "DELETE FROM tests WHERE state=? AND run_id=?;" state run-id))

;; speed up for common cases with a little logic
(define (db:test-set-state-status-by-id db test-id newstate newstatus newcomment)
  (cond
   ((and newstate newstatus newcomment)
    (sqlite3:exectute db "UPDATE tests SET state=?,status=?,comment=? WHERE id=?;" newstate newstatus test-id))
   ((and newstate newstatus)
    (sqlite3:exectute db "UPDATE tests SET state=?,status=? WHERE id=?;" newstate newstatus test-id))
   (else
    (if newstate   (sqlite3:execute db "UPDATE tests SET state=?   WHERE id=?;" newstate   test-id))
    (if newstatus  (sqlite3:execute db "UPDATE tests SET status=?  WHERE id=?;" newstatus  test-id))
    (if newcomment (sqlite3:execute db "UPDATE tests SET comment=? WHERE id=?;" newcomment test-id)))))

(define (db:test-set-state-status-by-run-id-testname db run-id test-name item-path status state)
  (sqlite3:execute db "UPDATE tests SET state=?,status=?,event_time=strftime('%s','now') WHERE run_id=? AND testname=? AND item_path=?;" 
		   state status run-id test-name item-path))

(define (db:get-count-tests-running db)
  (let ((res 0))
    (sqlite3:for-each-row
     (lambda (count)
       (set! res count))
     db
     "SELECT count(id) FROM tests WHERE state in ('RUNNING','LAUNCHED','REMOTEHOSTSTART','NOT_STARTED');")
    res))

(define (db:get-count-tests-running-in-jobgroup db jobgroup)
  (if (not jobgroup)
      0 ;; 
      (let ((res 0))
	(sqlite3:for-each-row

    (sqlite3:for-each-row
     (lambda (count)
       (set! res count))
     db ;; NB// KILLREQ means the jobs is still probably running
     "SELECT count(id) FROM tests WHERE state in ('LAUNCHED','NOT_STARTED','REMOTEHOSTSTART','RUNNING','KILLREQ') AND run_id=?;" run-id)
    res))

;; map run-id, testname item-path to test-id
(define (db:get-test-id-cached db run-id testname item-path)
  (let* ((test-key (conc run-id "-" testname "-" item-path))
	 (res      (hash-table-ref/default *test-ids* test-key #f)))
    (if res 
	res
	(begin
	  (sqlite3:for-each-row
	   (lambda (id) ;;  run-id testname state status event-time host cpuload diskfree uname rundir item-path run_duration final_logf comment )
	     (set! res id)) ;; (vector id run-id testname state status event-time host cpuload diskfree uname rundir item-path run_duration final_logf comment )))
	   db 
	   "SELECT id FROM tests WHERE run_id=? AND testname=? AND item_path=?;"
	   run-id testname item-path)
	  (hash-table-set! *test-ids* test-key res)
	  res))))

;; map run-id, testname item-path to test-id
(define (db:get-test-id-not-cached db run-id testname item-path)
  (let* ((res #f))
    (sqlite3:for-each-row
     (lambda (id) ;;  run-id testname state status event-time host cpuload diskfree uname rundir item-path run_duration final_logf comment )
       (set! res id)) ;; (vector id run-id testname state status event-time host cpuload diskfree uname rundir item-path run_duration final_logf comment )))
     db 
     "SELECT id FROM tests WHERE run_id=? AND testname=? AND item_path=?;"
     run-id testname item-path)
    res))

(define db:get-test-id db:get-test-id-cached)

;; given a test-info record, patch in the latest data from the testdat.db file
;; found in the test run directory
(define (db:patch-tdb-data-into-test-info db test-id res)
  (let ((tdb (db:open-test-db-by-test-id db test-id)))
    ;; get state and status from megatest.db in real time
    ;; other fields that perhaps should be updated:
    ;;   fail_count
    ;;   pass_count
    ;;   final_logf
    (sqlite3:for-each-row
     (lambda (state status final_logf)
       (db:test-set-state!        res state)
       (db:test-set-status!       res status)
       (db:test-set-final_logf!   res final_logf))
     db
     "SELECT state,status,final_logf FROM tests WHERE id=?;"
     test-id)
    (if tdb
	(begin
	  (sqlite3:for-each-row
	   (lambda (update_time cpuload disk_free run_duration)
	     (db:test-set-cpuload!      res cpuload)
	     (db:test-set-diskfree!     res disk_free)
	     (db:test-set-run_duration! res run_duration))
	   tdb
	   "SELECT update_time,cpuload,diskfree,run_duration FROM test_rundat ORDER BY id DESC LIMIT 1;")
	  (sqlite3:finalize! tdb))
	;; if the test db is not found what to do?
	;; 1. set state to DELETED
	;; 2. set status to n/a
	(begin
	  (db:test-set-state!  res "NOT_STARTED")
	  (db:test-set-status! res "n/a")))))

(define *last-test-cache-delete* (current-seconds))

(define (db:clean-all-caches)
  (set! *test-info* (make-hash-table))
  (set! *test-id-cache* (make-hash-table)))

;; Get test data using test_id
(define (db:get-test-info-cached-by-id db test-id)
  ;; is all this crap really worth it? I somehow doubt it.
  (let* ((last-delete-str (db:get-var db "DELETED_TESTS"))
	 (last-delete     (if (string? last-delete-str)(string->number last-delete-str) #f)))
    (if (and last-delete (> last-delete *last-test-cache-delete*))
	(begin
	  (set! *test-info* (make-hash-table))
	  (set! *test-id-cache* (make-hash-table))
	  (set! *last-test-cache-delete* last-delete)
	  (debug:print 4 "INFO: Clearing test data cache"))))
  (if (not test-id)
      (begin
	(debug:print 4 "INFO: db:get-test-info-by-id called with test-id=" test-id)
	#f)
      (let* ((res (hash-table-ref/default *test-info* test-id #f)))
	(if (and res
		 (member (db:test-get-state res) '("RUNNING" "COMPLETED")))
	    (db:patch-tdb-data-into-test-info db test-id res)
	    ;; if no cached value then full read and write to cache
	    (begin
	      (sqlite3:for-each-row
	       (lambda (id run-id testname state status event-time host cpuload diskfree uname rundir item-path run_duration final_logf comment)
		 ;;                 0    1       2      3      4        5       6      7        8     9     10      11          12          13       14
		 (set! res (vector id run-id testname state status event-time host cpuload diskfree uname rundir item-path run_duration final_logf comment)))
	       db 
	       "SELECT id,run_id,testname,state,status,event_time,host,cpuload,diskfree,uname,rundir,item_path,run_duration,final_logf,comment FROM tests WHERE id=?;"
	       test-id)
	      (if res (db:patch-tdb-data-into-test-info db test-id res))
	      res)))))

;; Get test data using test_id
(define (db:get-test-info-not-cached-by-id db test-id)
  (if (not test-id)
      (begin
	(debug:print 4 "INFO: db:get-test-info-by-id called with test-id=" test-id)
	#f)
      (let ((res #f))
	(sqlite3:for-each-row
	 (lambda (id run-id testname state status event-time host cpuload diskfree uname rundir item-path run_duration final_logf comment)
	   ;;                 0    1       2      3      4        5       6      7        8     9     10      11          12          13       14
	   (set! res (vector id run-id testname state status event-time host cpuload diskfree uname rundir item-path run_duration final_logf comment)))
	 db 
	 "SELECT id,run_id,testname,state,status,event_time,host,cpuload,diskfree,uname,rundir,item_path,run_duration,final_logf,comment FROM tests WHERE id=?;"
	 test-id)
	res)))

(define db:get-test-info-by-id db:get-test-info-not-cached-by-id)

(define (db:get-test-info db run-id testname item-path)
  (db:get-test-info-by-id db (db:get-test-id db run-id testname item-path)))

(define (db:test-set-comment db test-id comment)
  (sqlite3:execute 
   db 
   "UPDATE tests SET comment=? WHERE id=?;"
   comment test-id))

;;
(define (db:test-set-rundir! db run-id test-name item-path rundir)
  (sqlite3:execute 
   db 
   "UPDATE tests SET rundir=? WHERE run_id=? AND testname=? AND item_path=?;"
   rundir run-id test-name item-path))

(define (db:test-set-rundir-by-test-id! db test-id rundir)
  (sqlite3:execute 
   db 
   "UPDATE tests SET rundir=? WHERE id=?"
   rundir test-id))

;; 
(define (db:test-get-rundir-from-test-id db test-id)
  (let ((res (hash-table-ref/default *test-paths* test-id #f)))
    (if res
	res
	(begin
	  (sqlite3:for-each-row
	   (lambda (tpath)
	     (set! res tpath))
	   db 
	   "SELECT rundir FROM tests WHERE id=?;"
	   test-id)
	  (hash-table-set! *test-paths* test-id res)
	  res))))

(define (db:test-set-log! db test-id logf)
  (if (string? logf)
      (sqlite3:execute db "UPDATE tests SET final_logf=? WHERE id=?;"
		       logf test-id)
      (debug:print 0 "ERROR: db:test-set-log! called with non-string log file name " logf)))

;;======================================================================
;; Misc. test related queries
;;======================================================================

(define (db:test-get-paths-matching db keynames target fnamepatt #!key (res '()))

     qrystr)
    res))

;;======================================================================
;; QUEUE UP META, TEST STATUS AND STEPS
;;======================================================================

(define (db:updater)
  (debug:print 4 "INFO: Starting cache processing")
  (let loop ((start-time (current-time)))
    (thread-sleep! 5) ;; move save time around to minimize regular collisions?
    (db:write-cached-data)
    (loop start-time)))

(define (cdb:test-set-status-state test-id status state msg)
  (debug:print 4 "INFO: cdb:test-set-status-state test-id=" test-id ", status=" status ", state=" state ", msg=" msg)
  (mutex-lock! *incoming-mutex*)
  (set! *last-db-access* (current-seconds))
  (if msg
      (set! *incoming-data* (cons (vector 'state-status-msg
					  (current-milliseconds)
					  (list state status msg test-id))

				  *incoming-data*))
      (set! *incoming-data* (cons (vector 'state-status
					  (current-milliseconds)
					  (list state status test-id)) ;; run-id test-name item-path minutes cpuload diskfree tmpfree) 
				  *incoming-data*)))
  (mutex-unlock! *incoming-mutex*)
  (if *cache-on*
      (debug:print 6 "INFO: *cache-on* is " *cache-on* ", skipping cache write")
      (db:write-cached-data)))
  
(define (cdb:test-rollup-test_data-pass-fail test-id)
  (debug:print 4 "INFO: Adding " test-id " for test_data rollup to the queue")
  (mutex-lock! *incoming-mutex*)
  (set! *last-db-access* (current-seconds))
  (set! *incoming-data* (cons (vector 'test_data-pf-rollup
				      (current-milliseconds)
				      (list test-id test-id test-id test-id))
			      *incoming-data*))
  (mutex-unlock! *incoming-mutex*)
  (if *cache-on*
      (debug:print 6 "INFO: *cache-on* is " *cache-on* ", skipping cache write")
      (db:write-cached-data)))

(define (cdb:pass-fail-counts test-id fail-count pass-count)
  (debug:print 4 "INFO: Adding " test-id " for setting pass/fail counts to the queue")
  (mutex-lock! *incoming-mutex*)
  (set! *last-db-access* (current-seconds))
  (set! *incoming-data* (cons (vector 'pass-fail-counts
				      (current-milliseconds)
				      (list fail-count pass-count test-id))
			      *incoming-data*))
  (mutex-unlock! *incoming-mutex*)
  (if *cache-on*
      (debug:print 6 "INFO: *cache-on* is " *cache-on* ", skipping cache write")
      (db:write-cached-data)))

(define (cdb:tests-register-test db run-id test-name item-path #!key (force-write #f))
  (let ((item-paths (if (equal? item-path "")


			(list item-path)
			(list item-path ""))))
    (debug:print 4 "INFO: Adding " run-id ", " test-name "/" item-path " for setting pass/fail counts to the queue")
    (mutex-lock! *incoming-mutex*)
    (set! *last-db-access* (current-seconds))
    (set! *incoming-data* (cons (vector 'register-test
					(current-milliseconds)
					(list run-id test-name item-path)) ;; fail-count pass-count test-id))
				*incoming-data*))
    (mutex-unlock! *incoming-mutex*)
    (if (and (not force-write) *cache-on*)
	(debug:print 6 "INFO: *cache-on* is " *cache-on* ", skipping cache write")
	(db:write-cached-data))))

;; The queue is a list of vectors where the zeroth slot indicates the type of query to
;; apply and the second slot is the time of the query and the third entry is a list of 
;; values to be applied
;;
(define (db:write-cached-data)
  (open-run-close
   (lambda (db . params)
     (let ((register-test-stmt    (sqlite3:prepare db "INSERT OR IGNORE INTO tests (run_id,testname,event_time,item_path,state,status) VALUES (?,?,strftime('%s','now'),?,'NOT_STARTED','n/a');"))
	   (state-status-stmt     (sqlite3:prepare db "UPDATE tests SET state=?,status=? WHERE id=?;"))
	   (state-status-msg-stmt (sqlite3:prepare db "UPDATE tests SET state=?,status=?,comment=? WHERE id=?;"))
	   (pass-fail-counts-stmt (sqlite3:prepare db "UPDATE tests SET fail_count=?,pass_count=? WHERE id=?;"))
	   (test_data-rollup-stmt  (sqlite3:prepare db "UPDATE tests
                                             SET status=CASE WHEN (SELECT fail_count FROM tests WHERE id=?) > 0 
                                                THEN 'FAIL'
                                             WHEN (SELECT pass_count FROM tests WHERE id=?) > 0 AND 
                                                  (SELECT status FROM tests WHERE id=?) NOT IN ('WARN','FAIL')
                                             THEN 'PASS'
                                             ELSE status
                                         END WHERE id=?;"))
	   (data                  #f)
	   (rollups               (make-hash-table)))
       (mutex-lock! *incoming-mutex*)
       (set! data (sort *incoming-data* (lambda (a b)(< (vector-ref a 1)(vector-ref b 1)))))
       (set! *incoming-data* '())
       (mutex-unlock! *incoming-mutex*)
       (if (> (length data) 0)
	   (debug:print 4 "INFO: Writing cached data " data))
       (sqlite3:with-transaction 
	db
	(lambda ()
	  (debug:print 4 "INFO: flushing " data " to db")
	  (for-each (lambda (entry)
		      (let ((params (vector-ref entry 2)))
			(debug:print 4 "INFO: Applying " entry " to params " params)
			(case (vector-ref entry 0)
			  ((state-status)
			   (apply sqlite3:execute state-status-stmt     params))
			  ((state-status-msg)
			   (apply sqlite3:execute state-status-msg-stmt params))
			  ((test_data-pf-rollup)
			   ;; (hash-table-set! rollups (car params) params))
			   (apply sqlite3:execute test_data-rollup-stmt  params))
			  ((pass-fail-counts)
			   (apply sqlite3:execute pass-fail-counts-stmt params))
			  ((register-test)
			   (apply sqlite3:execute register-test-stmt    params))
			  (else
			   (debug:print 0 "ERROR: Queued entry not recognised " entry)))))
		    data)))
       ;; now do any rollups
       ;; (for-each
       ;;  (lambda (test-id)
       ;;    (apply sqlite3:execute test_data-rollup-stmt (hash-table-ref rollups test-id)))
       ;;  (hash-table-keys rollups))
       (sqlite3:finalize! state-status-stmt)
       (sqlite3:finalize! state-status-msg-stmt)
       (sqlite3:finalize! test_data-rollup-stmt)
       (sqlite3:finalize! pass-fail-counts-stmt)
       (sqlite3:finalize! register-test-stmt)
       (let ((cache-size (length data)))
	 (if (> cache-size *max-cache-size*)
	     (set! *max-cache-size* cache-size)))
       ))
   #f))

(define cdb:flush-queue db:write-cached-data)

(define (db:roll-up-pass-fail-counts db run-id test-name item-path status)
  (rdb:flush-queue)
  (if (and (not (equal? item-path ""))
	   (or (equal? status "PASS")
	       (equal? status "WARN")
	       (equal? status "FAIL")
	       (equal? status "WAIVED")
	       (equal? status "RUNNING")))
      (begin
	(sqlite3:execute 
	 db
	 "UPDATE tests 
             SET fail_count=(SELECT count(id) FROM tests WHERE run_id=? AND testname=? AND item_path != '' AND status='FAIL'),
                 pass_count=(SELECT count(id) FROM tests WHERE run_id=? AND testname=? AND item_path != '' AND (status='PASS' OR status='WARN' OR status='WAIVED'))
             WHERE run_id=? AND testname=? AND item_path='';"
	 run-id test-name run-id test-name run-id test-name)
        ;; (thread-sleep! 0.1) ;; give other processes a chance here, no, better to be done ASAP?
	(if (equal? status "RUNNING") ;; running takes priority over all other states, force the test state to RUNNING
	    (sqlite3:execute db "UPDATE tests SET state=? WHERE run_id=? AND testname=? AND item_path='';" "RUNNING" run-id test-name)
	    (sqlite3:execute
	     db
	     "UPDATE tests
                       SET state=CASE WHEN (SELECT count(id) FROM tests WHERE run_id=? AND testname=? AND item_path != '' AND state in ('RUNNING','NOT_STARTED')) > 0 THEN 
                          'RUNNING'
                       ELSE 'COMPLETED' END,
                          status=CASE WHEN fail_count > 0 THEN 'FAIL' WHEN pass_count > 0 AND fail_count=0 THEN 'PASS' ELSE 'UNKNOWN' END
                       WHERE run_id=? AND testname=? AND item_path='';"
	     run-id test-name run-id test-name))
	#f)
      #f))


;;======================================================================
;; Tests meta data
;;======================================================================

;; read the record given a testname
(define (db:testmeta-get-record db testname)

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

(define (db:csv->test-data db test-id csvdata)
  (debug:print 4 "test-id " test-id ", csvdata: " csvdata)
  (let ((tdb     (db:open-test-db-by-test-id db test-id)))
    (if tdb
	(let ((csvlist (csv->list (make-csv-reader
				   (open-input-string csvdata)
				   '((strip-leading-whitespace? #t)
				     (strip-trailing-whitespace? #t)) )))) ;; (csv->list csvdata)))
	  (for-each 
	   (lambda (csvrow)
	     (let* ((padded-row  (take (append csvrow (list #f #f #f #f #f #f #f #f #f)) 9))
		    (category    (list-ref padded-row 0))
		    (variable    (list-ref padded-row 1))
		    (value       (any->number-if-possible (list-ref padded-row 2)))
		    (expected    (any->number-if-possible (list-ref padded-row 3)))
		    (tol         (any->number-if-possible (list-ref padded-row 4))) ;; >, <, >=, <=, or a number
		    (units       (list-ref padded-row 5))
		    (comment     (list-ref padded-row 6))
		    (status      (let ((s (list-ref padded-row 7)))
				   (if (and (string? s)(or (string-match (regexp "^\\s*$") s)
							   (string-match (regexp "^n/a$") s)))
				       #f
				       s))) ;; if specified on the input then use, else calculate
		    (type        (list-ref padded-row 8)))
	       ;; look up expected,tol,units from previous best fit test if they are all either #f or ''
	       (debug:print 4 "BEFORE: category: " category " variable: " variable " value: " value 
			    ", expected: " expected " tol: " tol " units: " units " status: " status " comment: " comment " type: " type)

	       (if (and (or (not expected)(equal? expected ""))
			(or (not tol)     (equal? expected ""))
			(or (not units)   (equal? expected "")))
		   (let-values (((new-expected new-tol new-units)(db:get-prev-tol-for-test db test-id category variable)))
			       (set! expected new-expected)
			       (set! tol      new-tol)
			       (set! units    new-units)))

	       (debug:print 4 "AFTER:  category: " category " variable: " variable " value: " value 
			    ", expected: " expected " tol: " tol " units: " units " status: " status " comment: " comment)
	       ;; calculate status if NOT specified
	       (if (and (not status)(number? expected)(number? value)) ;; need expected and value to be numbers
		   (if (number? tol) ;; if tol is a number then we do the standard comparison
		       (let* ((max-val (+ expected tol))
			      (min-val (- expected tol))
			      (result  (and (>=  value min-val)(<= value max-val))))
			 (debug:print 4 "max-val: " max-val " min-val: " min-val " result: " result)
			 (set! status (if result "pass" "fail")))
		       (set! status ;; NB// need to assess each one (i.e. not return operator since need to act if not valid op.
			     (case (string->symbol tol) ;; tol should be >, <, >=, <=
			       ((>)  (if (>  value expected) "pass" "fail"))
			       ((<)  (if (<  value expected) "pass" "fail"))
			       ((>=) (if (>= value expected) "pass" "fail"))
			       ((<=) (if (<= value expected) "pass" "fail"))
			       (else (conc "ERROR: bad tol comparator " tol))))))
	       (debug:print 4 "AFTER2: category: " category " variable: " variable " value: " value 
			    ", expected: " expected " tol: " tol " units: " units " status: " status " comment: " comment)
	       (sqlite3:execute tdb "INSERT OR REPLACE INTO test_data (test_id,category,variable,value,expected,tol,units,comment,status,type) VALUES (?,?,?,?,?,?,?,?,?,?);"
				test-id category variable value expected tol units (if comment comment "") status type)
	       (sqlite3:finalize! tdb)))
	   csvlist)))))

;; get a list of test_data records matching categorypatt
(define (db:read-test-data db test-id categorypatt)
  (let ((tdb  (db:open-test-db-by-test-id db test-id)))
    (if tdb
	(let ((res '()))
	  (sqlite3: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)
	  (reverse res))
	'())))

(define (db:load-test-data db test-id)
  (let loop ((lin (read-line)))
    (if (not (eof-object? lin))
	(begin
	  (debug:print 4 lin)
	  (db:csv->test-data db test-id lin)
	  (loop (read-line)))))
  ;; roll up the current results.
  ;; FIXME: Add the status to 
  (db:test-data-rollup db test-id #f))

;; WARNING: Do NOT call this for the parent test on an iterated test
;; Roll up test_data pass/fail results
;; look at the test_data status field, 
;;    if all are pass (any case) and the test status is PASS or NULL or '' then set test status to PASS.
;;    if one or more are fail (any case) then set test status to PASS, non "pass" or "fail" are ignored
(define (db:test-data-rollup db test-id status)
  (let ((tdb (open-run-close db:open-test-db-by-test-id db test-id))
	(fail-count 0)
	(pass-count 0))
    (if tdb
	(begin
	  (sqlite3:for-each-row
	   (lambda (fcount pcount)
	     (set! fail-count fcount)
	     (set! pass-count pcount))
	   tdb 

	   "SELECT (SELECT count(id) FROM test_data WHERE test_id=? AND status like 'fail') AS fail_count,
                   (SELECT count(id) FROM test_data WHERE test_id=? AND status like 'pass') AS pass_count;"

	   test-id test-id)
	  (sqlite3:finalize! tdb)

	  ;; Now rollup the counts to the central megatest.db
	  (rdb:pass-fail-counts test-id fail-count pass-count)
	  ;; (sqlite3:execute db "UPDATE tests SET fail_count=?,pass_count=? WHERE id=?;" 
	  ;;                     fail-count pass-count test-id)

	  (thread-sleep! 10) ;; play nice with the queue by ensuring the rollup is at least 10s later than the set
	  
	  ;; if the test is not FAIL then set status based on the fail and pass counts.

	  (rdb:test-rollup-test_data-pass-fail test-id)
	  ;; (sqlite3:execute
	  ;;  db   ;;; NOTE: Should this be WARN,FAIL? A WARN is not a FAIL????? BUG FIXME
	  ;;  "UPDATE tests
          ;;             SET status=CASE WHEN (SELECT fail_count FROM tests WHERE id=?) > 0 
          ;;                THEN 'FAIL'
          ;;             WHEN (SELECT pass_count FROM tests WHERE id=?) > 0 AND 
          ;;                  (SELECT status FROM tests WHERE id=?) NOT IN ('WARN','FAIL')
          ;;             THEN 'PASS'
          ;;             ELSE status
          ;;         END WHERE id=?;"
	  ;;  test-id test-id test-id test-id)
	  ))))

(define (db:get-prev-tol-for-test db test-id category variable)
  ;; Finish me?
  (values #f #f #f))

;;======================================================================
;; S T E P S 
;;======================================================================

(define (db:step-get-time-as-string vec)
  (seconds->time-string (db:step-get-event_time vec)))

;; db-get-test-steps-for-run
(define (db:get-steps-for-test db test-id)
  (let* ((tdb (db:open-test-db-by-test-id db test-id))
	 (res '()))
    (if tdb
	(begin
	  (sqlite3:for-each-row 
	   (lambda (id test-id stepname state status event-time logfile)
	     (set! res (cons (vector id test-id stepname state status event-time (if (string? logfile) logfile "")) res)))
	   tdb
	   "SELECT id,test_id,stepname,state,status,event_time,logfile FROM test_steps WHERE test_id=? ORDER BY id ASC;" ;; event_time DESC,id ASC;
	   test-id)
	  (sqlite3:finalize! tdb)
	  (reverse res))
	'())))

;; get a pretty table to summarize steps
;;
(define (db:get-steps-table db test-id)
  (let ((steps   (db:get-steps-for-test db test-id)))
    ;; organise the steps for better readability
    (let ((res (make-hash-table)))

;; all prereqs must be met:
;;    if prereq test with itempath='' is COMPLETED and PASS, WARN, CHECK, or WAIVED then prereq is met
;;    if prereq test with itempath=ref-item-path and COMPLETED with PASS, WARN, CHECK, or WAIVED then prereq is met
;;
;; Note: do not convert to remote as it calls remote under the hood
;; Note: mode 'normal means that tests must be COMPLETED and ok (i.e. PASS, WARN, CHECK or WAIVED)
;;       mode 'toplevel means that tests must be COMPLETED only
;;       mode 'itemmatch means that tests items must be COMPLETED and (PASS|WARN|WAIVED|CHECK) [[ NB// NOT IMPLEMENTED YET ]]
;; 
(define (db:get-prereqs-not-met db run-id waitons ref-item-path #!key (mode 'normal))
  (if (or (not waitons)
	  (null? waitons))
      '()
      (let* ((unmet-pre-reqs '())
	     (result         '()))
	(for-each 
	 (lambda (waitontest-name)
	   ;; by getting the tests with matching name we are looking only at the matching test 
	   ;; and related sub items
	   (let ((tests             (db:get-tests-for-run db run-id waitontest-name #f '() '()))
		 (ever-seen         #f)
		 (parent-waiton-met #f)
		 (item-waiton-met   #f))
	     (for-each 
	      (lambda (test)
		;; (if (equal? waitontest-name (db:test-get-testname test)) ;; by defintion this had better be true ...
		(let* ((state             (db:test-get-state test))

	      tests)
	     (if (not (or parent-waiton-met item-waiton-met))
		 (set! result (append (if (null? tests) (list waitontest-name) tests) result)))
	     ;; if the test is not found then clearly the waiton is not met...
	     ;; (if (not ever-seen)(set! result (cons waitontest-name result)))))
	     (if (not ever-seen)
		 (set! result (append (if (null? tests)(list waitontest-name) tests) result)))))
	 waitons)
	(delete-duplicates result))))

(define (db:teststep-set-status! db test-id teststep-name state-in status-in comment logfile)
  (debug:print 4 "test-id: " test-id " teststep-name: " teststep-name)
  (let* ((tdb       (db:open-test-db-by-test-id db test-id))
	 (state     (check-valid-items "state" state-in))
	 (status    (check-valid-items "status" status-in)))
    (if (or (not state)(not status))
	(debug:print 0 "WARNING: Invalid " (if status "status" "state")
		     " value \"" (if status state-in status-in) "\", update your validvalues section in megatest.config"))
    (if tdb
	(begin
	  (sqlite3:execute 
	   tdb
	   "INSERT OR REPLACE into test_steps (test_id,stepname,state,status,event_time,comment,logfile) VALUES(?,?,?,?,?,?,?);"
	   test-id teststep-name state-in status-in (current-seconds) (if comment comment "") (if logfile logfile ""))
	  (sqlite3:finalize! tdb)


	  #t)
	#f)))

;;======================================================================
;; Extract ods file from the db
;;======================================================================

;; runspatt is a comma delimited list of run patterns
;; keypatt-alist must contain *all* keys with an associated pattern: '( ("KEY1" "%") .. )

;; (db:extract-ods-file db "outputfile.ods" '(("sysname" "%")("fsname" "%")("datapath" "%")) "%")


;;======================================================================
;; REMOTE DB ACCESS VIA RPC
;;======================================================================








(define (rdb:open-run-close procname . remargs)


  (if *runremote*
      (let ((host (vector-ref *runremote* 0))
	    (port (vector-ref *runremote* 1)))
























	(apply (rpc:procedure 'rdb:open-run-close host port) procname remargs))


      (apply open-run-close (eval procname) remargs)))








(define (rdb:test-set-status-state test-id status state msg)
  (if *runremote*
      (let ((host (vector-ref *runremote* 0))
	    (port (vector-ref *runremote* 1)))
	(handle-exceptions
	 exn

	 (begin






	   (debug:print 0 "EXCEPTION: rpc call failed?")







	   (debug:print 0 "  " ((condition-property-accessor 'exn 'message) exn))







	   (print-call-chain)
	   (cdb:test-set-status-state test-id status state msg))



	 ((rpc:procedure 'cdb:test-set-status-state host port) test-id status state msg)))

      (cdb:test-set-status-state test-id status state msg)))

(define (rdb:test-rollup-test_data-pass-fail test-id)










  (if *runremote*
      (let ((host (vector-ref *runremote* 0))
	    (port (vector-ref *runremote* 1)))
	((rpc:procedure 'cdb:test-rollup-test_data-pass-fail host port) test-id))

      (cdb:test-rollup-test_data-pass-fail test-id)))








(define (rdb:pass-fail-counts test-id fail-count pass-count)
  (if *runremote*
      (let ((host (vector-ref *runremote* 0))
	    (port (vector-ref *runremote* 1)))
	((rpc:procedure 'cdb:pass-fail-counts host port) test-id fail-count pass-count))

      (cdb:pass-fail-counts test-id fail-count pass-count)))













;; currently forces a flush of the queue
(define (rdb:tests-register-test db run-id test-name item-path)
  (if *runremote*
      (let ((host (vector-ref *runremote* 0))
	    (port (vector-ref *runremote* 1)))
	((rpc:procedure 'cdb:tests-register-test host port) db run-id test-name item-path force-write: #t))

      (cdb:tests-register-test db run-id test-name item-path force-write: #t)))














(define (rdb:flush-queue)
  (if *runremote*
      (let ((host (vector-ref *runremote* 0))
	    (port (vector-ref *runremote* 1)))
	((rpc:procedure 'cdb:flush-queue host port)))

      (cdb:flush-queue)))