isolate history handling

1 files changed, 98 insertions, 65 deletions

diff --git a/theMagicOfAutocomplete.go b/theMagicOfAutocomplete.go
index 9c9010b..0e92af3 100644
--- a/theMagicOfAutocomplete.go
+++ b/theMagicOfAutocomplete.go
@@ -10,6 +10,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/google/uuid"
 	"go.wit.com/lib/cobol"
 	"go.wit.com/lib/config"
 	"go.wit.com/lib/env"
@@ -24,6 +25,7 @@ import (
 func Autocomplete(dest any) *Argv {
 	me = new(AutoArgs) // todo: redo this
 	me.pb = new(Argv)
+	me.pb.Uuid = uuid.New().String()
 
 	// set the start time of the binary
 	now := time.Now()
@@ -42,28 +44,8 @@ func Autocomplete(dest any) *Argv {
 	// initializes the lib/env library
 	env.Init(me.pb.AppInfo.APPNAME, me.pb.AppInfo.VERSION, cobol.Time(me.pb.AppInfo.BUILDTIME), me.pb.Real, GoodExit, BadExit)
 
-	// loads the argv autocomplete history file
-	me.all = NewArgvs()
-	me.Err = config.CreateCacheDirPB(me.all, "argv", me.pb.AppInfo.APPNAME)
-	if me.Err == nil {
-		me.all.PrintHistory()
-	} else {
-		// there is no history.
-		// todo: initialize the history file
-		// todo: check if this is automatically done already
-		//
-		// ALWAYS KEEP THESE LINES AND THE panic()
-		//
-		// They are needed to debug autocomplete.
-		//
-		// This code is only executed when the user is hitting tab in the shell,
-		// so this panic() is safe and can never be triggered by normal program execution.
-		//
-		me.debug = true
-		me.pb.Stderr += fmt.Sprintf("config.CreateCacheDirPB() err(%v)\n", me.Err)
-		me.pb.PrintStderr()
-		panic("argvpb.Load() history file failed")
-	}
+	// open the argv cache history file to figure out the timing
+	examineArgvHistory()
 
 	// try to register bash args for go-args
 	// arg.Register(&ArgvBash)
@@ -79,10 +61,10 @@ func Autocomplete(dest any) *Argv {
 	// user is trying to setup bash or zsh autocomplete
 	// --bash or --zsh is the first os.Args
 	if me.setupAuto {
-		savePB()
 		// --bash or --zsh was passed. try to configure bash-completion
 		MakeAutocompleteFiles(me.pb.AppInfo.APPNAME)
 		// never forget to exit here or you will hate yourself and the choices you have made
+		savePB()
 		saveAndExit()
 	}
 
@@ -97,64 +79,41 @@ func Autocomplete(dest any) *Argv {
 		// do autocomplete and exit
 		savePB()
 		doAutocomplete()
-		// todo: this never gets here. fix that
+		panic("blah")
+		savePB()
 		saveAndExit()
 	}
 
 	// not autocompleting. return to the application
 	// save the pb & history
-	me.all.Clone(me.pb)
-	errors.Join(me.Err, me.all.Save())
-
+	savePB()
 	// me.pp = arg.MustParse(dest)
 	me.Err = errors.Join(me.Err, me.mustParseFunc())
 	return me.pb
 }
 
-// prints what is needed to Stdout & Stderr, then exits
-// EVERYTHING PAST HERE IS FOR AUTOCOMPLETE
+// doAutocomplete(): print what is needed to Stdout & Stderr, then exit
+//
 // everything sent to STDOUT and STDERR matters past this point
+// any "junk" output, hidden fmt(), print() or log() statements are bad
 func doAutocomplete() {
-	// set the duration since the last auto complete
-	// find the last entry. this is dumb way to do it
-	me.last = new(Argv)
-	me.last.Ctime = timestamppb.New(time.Now().Add(-time.Second))
-	for found := range me.all.IterAll() {
-		me.last = found
+	if me.last.Fast {
+		// user is probably holding down the <TAB> key
+		me.debug = true
+		// me.fastcmd = me.pb.GetCmd()
+		if me.pb.GetCmd() != me.last.GetCmd() {
+			// do the smart something here
+			// probably debug == true  &&  printStderr()
+		}
 	}
-	dur := time.Since(me.last.Ctime.AsTime())
-	me.pb.Duration = durationpb.New(dur)
 
 	if me.debug {
 		// dump debug info
-		me.pb.PrintDebug()
-		me.all.PrintHistory()
+		me.pb.PrintDebug(me.last.GetCmd())
+		// me.all.PrintHistory()
 		// me.pb.PrintStderr()
 	}
 
-	// roll the autocomplete file
-	if me.all.Len() > 15 {
-		me.pb.Debugf("DEBUG: trim() history is over 100 len=%d vs new=%d", me.all.Len(), me.all.Len()-90)
-		me.all.Argvs = me.all.Argvs[me.all.Len()-10:]
-		// newall.Autos = me.all.Autos[0:10]
-		// for _, found := range me.all.Autos[0:10] {
-		// 	newall.Append(found)
-		// }
-	}
-
-	// turn on debugging if duration < 200 milliseconds
-	dur = me.pb.Duration.AsDuration()
-	if dur < time.Millisecond*200 {
-		me.debug = true
-		me.pb.Fast = true
-		// me.fastcmd = me.pb.GetCmd()
-		if me.last.Fast {
-			if me.pb.GetCmd() == me.last.GetCmd() {
-				// do the smart something here
-			}
-		}
-	}
-
 	flags := []string{}
 	for _, s := range me.pb.Real {
 		if s == "--autodebug" {
@@ -186,9 +145,10 @@ func doAutocomplete() {
 			me.pb.Debugf("DEBUG: real=(%v) found --gui", me.pb.Real)
 			me.pb.PrintStderr()
 			me.pb.SendString("andlabs gogui")
+			savePB()
 			saveAndExit()
 		} else {
-			// me.pb.Debugf("DEBUG: NO MATCH last='%s' found key '%s' = %s", me.last, key, val)
+			// me.pb.Debugf("DEBUG: NO MATCH last='%s' found key '%s' = %s", last, key, val)
 		}
 	}
 
@@ -224,6 +184,7 @@ func doAutocomplete() {
 			if me.pb.HelpCounter < 3 {
 				me.pb.PrintStderr()
 			} else {
+				savePB()
 				saveAndExit()
 			}
 		} else {
@@ -249,16 +210,88 @@ func doAutocomplete() {
 			// if not, send "reset bash newline\n" to cause bash to redraw PS1 for the user
 		}
 	}
+	savePB()
 	saveAndExit()
 }
 
 func savePB() {
 	// save now. this is near the end probably
-	me.all.Clone(me.pb)
+	me.all.Append(me.pb)
+	npb := new(Argv)
+	// npb.Uuid = uuid.New().String()
+	me.all.Append(npb)
 	errors.Join(me.Err, me.all.Save())
 }
 
 func saveAndExit() {
-	savePB()
 	os.Exit(0)
 }
+
+// sets me.last
+// computes me.pb.Duration
+func examineArgvHistory() {
+	me.all = NewArgvs()
+	// loads the argv autocomplete history file
+	me.Err = config.ForceCreateCacheDirPB(me.all, "argv", me.pb.AppInfo.APPNAME)
+	if me.Err != nil {
+		// there is no history.
+		// ALWAYS KEEP THESE LINES AND THE panic()
+		// They are needed to debug autocomplete.
+		//
+		// This code is only executed when the user is hitting tab in the shell,
+		// so this panic() is safe and can never be triggered by normal program execution.
+		//
+		me.debug = true
+		me.pb.Stderr += fmt.Sprintf("config.CreateCacheDirPB() err(%v)\n", me.Err)
+		me.pb.PrintStderr()
+		panic("argvpb.Load() history file failed")
+	}
+	me.all.PrintHistory("<?>")
+	if me.all.Len() > 0 {
+		last := me.all.Argvs[me.all.Len()-1]
+		me.pb.Debugf("DEBUG LAST %v", last)
+	}
+	// roll the autocomplete file
+	maxsize := 17
+	trim := 10
+	if me.all.Len() > maxsize {
+		me.pb.Debugf("DEBUG: trim() history is over 17 len=%d vs new=%d", me.all.Len(), me.all.Len()-trim)
+		me.pb.Debugf("DEBUG: trim() history is over 17 len=%d vs new=%d", me.all.Len(), me.all.Len()-trim)
+		me.pb.Debugf("DEBUG: trim() history is over 17 len=%d vs new=%d", me.all.Len(), me.all.Len()-trim)
+		me.all.Argvs = me.all.Argvs[me.all.Len()-trim:]
+		// newall.Autos = me.all.Autos[0:10]
+	}
+
+	counter := 0
+	for pb := range me.all.IterAll() {
+		counter += 1
+		if pb.Ctime == nil {
+			me.all.Delete(pb)
+			continue
+		}
+		hist := fmt.Sprintf("HISTNIL(%d)", counter)
+		pb.PrintDebugNew(hist, "jwc")
+	}
+	if me.all.Len() == 0 {
+		me.pb.PrintStderr()
+		// todo: make a blak entry here
+		panic("examineArgvHistory() couldn't find a valid last entry")
+	}
+	me.last = me.all.Argvs[me.all.Len()-1]
+
+	// compute the duration since the last time
+	dur := time.Since(me.last.Ctime.AsTime())
+	me.pb.Duration = durationpb.New(dur)
+
+	// turn on debugging if duration < 200 milliseconds
+	if me.pb.Duration.AsDuration() < time.Millisecond*200 {
+		me.debug = true
+		me.pb.Fast = true
+		// me.fastcmd = me.pb.GetCmd()
+		if me.last.Fast {
+			if me.pb.GetCmd() != me.last.GetCmd() {
+				// do the smart something here
+			}
+		}
+	}
+}