#[Copyright 2023 ITwrx.
This file is part of EZ-Bkup.
EZ-Bkup is released under the General Public License 3.0.
See COPYING or <https://www.gnu.org/licenses/> for details.]#

import owlkettle
import "../models/routine", "../shared"

viewable RoutineEditor:
  ## A form for editing a Routine
  
  routine: Routine ## The routine that is being edited
  
  # Since Routine is passed by value, we need to notify the parent widget of
  # any changes to the routine. The changed callback 
  proc changed(routine: Routine)

method view(editor: RoutineEditorState): Widget {.locks: "unknown".} =
  result = gui:    
    #must have top level container that everything else is inside of.
    Box:
      orient = OrientY
      margin = 12
      spacing = 12
      Box {.expand: false.}:
        orient = OrientX
        spacing = 6 
        Label {.expand: false.}:
          text = "<span weight=\"bold\">Name:</span>"
          xAlign = 0
          useMarkup = true            
        Entry {.expand: false.}:
          text = editor.routine.name
          xAlign = 0              
          proc changed(text: string) =
            editor.routine.name = text                
            # Call the changed callback
            if not editor.changed.isNil:
              editor.changed.callback(editor.routine)
      Box {.expand: false.}:
        orient = OrientX
        spacing = 6
        Label {.expand: false.}:
          #later, this may be "selected by default?", instead.
          #"selected" checkboxes wiould be added to the list view.
          #to allow the user to select which routines are used for a given run.
          text = "<span weight=\"bold\" color=\"#FFF469\">Enabled?</span>"
          tooltip = "Should this Routine be enabled for inclusion in the Bkup run?"
          xAlign = 0
          useMarkup = true
        Switch {.expand: false.}:
          state = editor.routine.selByDef
          proc changed(state: bool) =
            editor.routine.selByDef = state 
            if not editor.changed.isNil:
              editor.changed.callback(editor.routine)
      Label {.expand: false.}:
        text = "<span weight=\"bold\" color=\"#FFF469\">Sources:</span>"
        tooltip = "The file(s) or folder(s) you want to backup when this Routine is run."
        xAlign = 0
        useMarkup = true
      Box {.expand: false.}:
        spacing = 6
        Button {.expand: false.}:
          text = "+ File"
          style = [ButtonSuggested]
          proc clicked() =
            let (res, state) = editor.app.open: gui:
              FileChooserDialog:
                title = "Add Source Files to Routine"
                action = FileChooserOpen 
                selectMultiple = true                 
                DialogButton {.addButton.}:
                  text = "Cancel"
                  res = DialogCancel                  
                DialogButton {.addButton.}:
                  text = "Confirm"
                  res = DialogAccept
                  style = [ButtonSuggested]              
            if res.kind == DialogAccept:
              for filename in FileChooserDialogState(state).filenames:
                if hasCommas(filename):
                  discard editor.app.open: gui:
                    MessageDialog:
                      message = "Commas in Source filename/path are not supported."
                      style = [StyleClass("error")]                  
                      DialogButton {.addButton.}:
                        text = "Ok"
                        res = DialogAccept
                elif filename in editor.routine.sources:
                  discard editor.app.open: gui:
                    MessageDialog:
                      message = "Duplicate Routine Source filenames (" & filename & ") are not supported."
                      style = [StyleClass("error")]                  
                      DialogButton {.addButton.}:
                        text = "Ok"
                        res = DialogAccept
                else:
                  editor.routine.sources.add(filename)
                  if not editor.changed.isNil:
                    editor.changed.callback(editor.routine)  
        Button {.expand: false.}:
          text = "+ Folder"
          style = [ButtonSuggested]
          proc clicked() =
            let (res, state) = editor.app.open: gui:
              FileChooserDialog:
                title = "Add Source Folders to Routine"
                action = FileChooserSelectFolder  
                selectMultiple = true               
                DialogButton {.addButton.}:
                  text = "Cancel"
                  res = DialogCancel                  
                DialogButton {.addButton.}:
                  text = "Confirm"
                  res = DialogAccept
                  style = [ButtonSuggested]              
            if res.kind == DialogAccept:
              for filename in FileChooserDialogState(state).filenames:
                if hasCommas(filename):
                  discard editor.app.open: gui:
                    MessageDialog:
                      message = "Commas in Source filename/path are not supported."
                      style = [StyleClass("error")]                  
                      DialogButton {.addButton.}:
                        text = "Ok"
                        res = DialogAccept
                elif filename in editor.routine.sources:
                  discard editor.app.open: gui:
                    MessageDialog:
                      message = "Duplicate Routine Source (" & filename & ") not supported."
                      style = [StyleClass("error")]                  
                      DialogButton {.addButton.}:
                        text = "Ok"
                        res = DialogAccept
                else:
                  editor.routine.sources.add(filename) 
                  if not editor.changed.isNil:
                    editor.changed.callback(editor.routine)
      Box {.expand: false.}:
        orient = OrientY
        margin = 6
        spacing = 6
        #routineSeq returns an empty seq when no sources exist.
        if editor.routine.sources.len != 0:
          for it, routineSource in editor.routine.sources:      
            Box:
              orient = OrientX
              spacing = 6
              Label:
                text = routineSource
                xAlign = 0             
              Button {.expand: false.}:
                icon = "user-trash-symbolic"   
                tooltip = "Delete this Source. Warning: will not ask you to confirm."           
                proc clicked() =
                  editor.routine.sources.delete(it)
                  if not editor.changed.isNil:
                    editor.changed.callback(editor.routine)
      Label {.expand: false.}:
        text = "<span weight=\"bold\" color=\"#FFF469\">Destinations:</span>"
        tooltip = "The folder(s) or drive(s) you want to backup this Routine's Sources to."
        xAlign = 0
        useMarkup = true
      Box {.expand: false.}:
        spacing = 6  
        Button {.expand: false.}:
          text = "+ Folder/Drive"
          style = [ButtonSuggested]
          proc clicked() =
            let (res, state) = editor.app.open: gui:
              FileChooserDialog:
                title = "Add Destination Folders to Routine"
                action = FileChooserSelectFolder 
                selectMultiple = true                 
                DialogButton {.addButton.}:
                  text = "Cancel"
                  res = DialogCancel                  
                DialogButton {.addButton.}:
                  text = "Confirm"
                  res = DialogAccept
                  style = [ButtonSuggested] 
            if res.kind == DialogAccept:
              for filename in FileChooserDialogState(state).filenames:
                if hasCommas(filename):
                  discard editor.app.open: gui:
                    MessageDialog:
                      message = "Commas in Destination filename/path are not supported."
                      style = [StyleClass("error")]                  
                      DialogButton {.addButton.}:
                        text = "Ok"
                        res = DialogAccept
                elif filename in editor.routine.destinations:
                  discard editor.app.open: gui:
                    MessageDialog:
                      message = "Duplicate Routine Destination (" & filename & ") not supported."
                      style = [StyleClass("error")]                  
                      DialogButton {.addButton.}:
                        text = "Ok"
                        res = DialogAccept
                else:
                  editor.routine.destinations.add(filename)
                  if not editor.changed.isNil:
                    editor.changed.callback(editor.routine)
      Box {.expand: false.}:
        orient = OrientY
        margin = 6
        spacing = 6
        #routineSeq returns an empty seq when no destinations exist.
        if editor.routine.destinations.len != 0:
          for it, routineDestination in editor.routine.destinations:     
            Box:
              orient = OrientX
              spacing = 6
              Label:
                text = routineDestination
                xAlign = 0             
              Button {.expand: false.}:
                icon = "user-trash-symbolic"  
                tooltip = "Delete this Destination. Warning: will not ask you to confirm."            
                proc clicked() =
                  editor.routine.destinations.delete(it)
                  if not editor.changed.isNil:
                    editor.changed.callback(editor.routine)        

export RoutineEditor