from PyQt5.QtWidgets import QMainWindow, QApplication, QWidget, QVBoxLayout, QHBoxLayout, QLabel, QPushButton, QListWidget, QListWidgetItem, QMenuBar, QAction, QFileDialog, QMessageBox
from PyQt5.QtGui import QKeySequence
from editortool.cutscene.cutsceneitemeditor import CutsceneItemEditor
from editortool.cutscene.cutscenemenubar import CutsceneMenuBar
import sys

class CutsceneToolWindow(QMainWindow):
  def __init__(self):
    super().__init__()
    self.setWindowTitle("Dusk Cutscene Editor")
    self.setGeometry(100, 100, 800, 600)
    self.nextItemNumber = 1  # Track next available number
    self.currentFile = None
    self.dirty = False  # Track unsaved changes

    # File menu (handled by CutsceneMenuBar)
    menubar = CutsceneMenuBar(self)
    self.setMenuBar(menubar)

    # Main layout: horizontal split
    central = QWidget()
    mainLayout = QHBoxLayout(central)
    self.setCentralWidget(central)

    # Timeline
    leftPanel = QWidget()
    leftLayout = QVBoxLayout(leftPanel)

    self.timelineList = QListWidget()
    self.timelineList.setSelectionMode(QListWidget.SingleSelection)
    leftLayout.addWidget(QLabel("Cutscene Timeline"))
    leftLayout.addWidget(self.timelineList)

    btnLayout = QHBoxLayout()
    self.addBtn = QPushButton("Add")
    self.removeBtn = QPushButton("Remove")
    btnLayout.addWidget(self.addBtn)
    btnLayout.addWidget(self.removeBtn)
    leftLayout.addLayout(btnLayout)
    mainLayout.addWidget(leftPanel, 2)

    # Property editor
    self.editorPanel = QWidget()
    self.editorLayout = QVBoxLayout(self.editorPanel)
    self.itemEditor = None  # Only create when needed
    mainLayout.addWidget(self.editorPanel, 3)

    # Events
    self.timelineList.currentItemChanged.connect(self.onItemSelected)
    self.addBtn.clicked.connect(self.addCutsceneItem)
    self.removeBtn.clicked.connect(self.removeCutsceneItem)

  def addCutsceneItem(self):
    name = f"Cutscene item {self.nextItemNumber}"
    timelineItem = QListWidgetItem(name)
    self.timelineList.addItem(timelineItem)
    self.timelineList.setCurrentItem(timelineItem)
    self.nextItemNumber += 1
    self.dirty = True

  def removeCutsceneItem(self):
    row = self.timelineList.currentRow()
    if row < 0:
      return
    self.timelineList.takeItem(row)
    self.dirty = True

    # Remove editor if nothing selected
    if self.timelineList.currentItem() is None or self.itemEditor is None:
      return
    
    self.editorLayout.removeWidget(self.itemEditor)
    self.itemEditor.deleteLater()
    self.itemEditor = None

  def clearCutscene(self):
    self.timelineList.clear()
    self.nextItemNumber = 1
    self.currentFile = None
    self.dirty = False
    if self.itemEditor:
      self.editorLayout.removeWidget(self.itemEditor)

  def onItemSelected(self, current, previous):
    if current:
      if not self.itemEditor:
        self.itemEditor = CutsceneItemEditor()
        self.editorLayout.addWidget(self.itemEditor)
      return
    
    if not self.itemEditor:
      return
    self.editorLayout.removeWidget(self.itemEditor)
    self.itemEditor.deleteLater()
    self.itemEditor = None

if __name__ == "__main__":
  app = QApplication(sys.argv)
  window = CutsceneToolWindow()
  window.show()
  sys.exit(app.exec_())