import sys
import os
import shutil
import UtilPack as util


from PyQt5.QtCore import Qt, QSettings, QRect
from PyQt5.QtWidgets import QApplication, QWidget, QMainWindow, QPushButton, QVBoxLayout, QLineEdit, \
    QHBoxLayout, QTableWidget, QTableWidgetItem, QAbstractItemView, QHeaderView, QFileDialog, \
        QListWidget, QListWidgetItem, QMessageBox
from PyQt5.QtGui import QResizeEvent, QCloseEvent, QColor

class MyApp(QMainWindow):

    def __init__(self):
        super().__init__()
        self.initUI()
        self.loadINI()
        self.initDB()

    #
    def closeEvent(self, a0: 'QCloseEvent | None'):
        filenameLog = f"{util.GetCurrentTime()}_DbgLog.txt"
        pathDbgLog = os.path.join( self.pathLog, filenameLog)
        util.SaveDbgMessages(pathDbgLog)
        self.saveINI()
        super().closeEvent(a0)

    #
    def resizeEvent(self, a0: 'QResizeEvent | None'):
        pass

    #
    def loadINI(self):
        pass

    #
    def saveINI(self):
        pass

    #
    def initDB(self):
        pass

    #
    def MakeUI_Left(self):
        layout = QVBoxLayout()

        layout_top = QHBoxLayout()
        self.listWidget_Folders = QListWidget()
        self.listWidget_Folders.setFixedHeight(100)

        layout_Btns = QVBoxLayout()
        btn_FolderAdd = QPushButton("폴더 추가")
        btn_FolderAdd.clicked.connect(self.on_btnFolderAdd_clicked)
        btn_FolderDel = QPushButton("폴더 삭제")
        btn_FolderDel.clicked.connect(self.on_btnFolderDel_clicked)
        btn_FolderParss = QPushButton("폴더 파싱")
        btn_FolderParss.clicked.connect(self.on_btnFolderParse_clicked)

        layout_Btns.addWidget(btn_FolderAdd)
        layout_Btns.addWidget(btn_FolderDel)
        layout_Btns.addWidget(btn_FolderParss)
        
        layout_top.addWidget(self.listWidget_Folders)
        layout_top.addLayout(layout_Btns)
        
        self.tableWidget_Src = QTableWidget()
        self.tableWidget_Src.verticalHeader().setVisible(False)
        self.tableWidget_Src.setEditTriggers(QAbstractItemView.NoEditTriggers)
        self.tableWidget_Src.setSortingEnabled(True)
        self.tableWidget_Src.setColumnCount(5)
        self.tableWidget_Src.setHorizontalHeaderLabels(["Path", "Title", "H.ID", "Img Cnt", "Dw Cnt"])
        self.tableWidget_Src.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
        self.tableWidget_Src.horizontalHeader().sectionClicked.connect(self.on_tableWidget_Src_headerClicked)
        self.tableWidget_Src.setSelectionBehavior(QAbstractItemView.SelectRows)
        self.tableWidget_Src.setSelectionMode(QAbstractItemView.SingleSelection)
        self.tableWidget_Src.itemSelectionChanged.connect(self.on_tableWidget_Src_itemSelectionChanged)

        layout.addLayout(layout_top)
        layout.addWidget(self.tableWidget_Src)

        return layout
    
    #
    def MakeUI_Center(self):
        layout = QVBoxLayout()
        
        btn_Emptyfolder = QPushButton("빈 폴더 이동")
        btn_Emptyfolder.clicked.connect(self.on_btn_Emptyfolder_clicked)
        btn_ChkDuplicate = QPushButton("중복 검사 및 제거")
        btn_ChkDuplicate.clicked.connect(self.on_btn_ChkDuplicate_clicked)
        btn_Archive = QPushButton("압축 및 데이터 저장")
        btn_Archive.clicked.connect(self.on_btn_Archive_clicked)
        btn_EnterCalibre = QPushButton("컬리버에 삽입")
        btn_EnterCalibre.clicked.connect(self.on_btn_EnterCalibre_clicked)

        layout.addWidget(btn_Emptyfolder)
        layout.addWidget(btn_ChkDuplicate)
        layout.addWidget(btn_Archive)
        layout.addWidget(btn_EnterCalibre)

        return layout
    
    #
    def MakeUI_Right(self):
        layout_top = QHBoxLayout()
        self.edit_DB = QLineEdit(self)
        self.edit_DB.setReadOnly(True)
        self.edit_DB.setText("...")
        btn_DB = QPushButton("...")
        btn_DB.setFixedWidth(50)
        btn_DB.clicked.connect(self.on_btnDB_clicked)
        layout_top.addWidget(self.edit_DB)
        layout_top.addWidget(btn_DB)

        self.tableWidget_DB = QTableWidget()
        self.tableWidget_DB.verticalHeader().setVisible(False)
        self.tableWidget_DB.setColumnCount(5)
        self.tableWidget_DB.setHorizontalHeaderLabels(["Title", "Author", "Cover", "Exts", "ID"])
        self.tableWidget_DB.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
        self.tableWidget_DB.setSelectionBehavior(QAbstractItemView.SelectRows)
        self.tableWidget_DB.setSelectionMode(QAbstractItemView.SingleSelection)
        self.tableWidget_DB.itemSelectionChanged.connect(self.on_tableWidget_DB_itemSelectionChanged)

        layout = QVBoxLayout()
        layout.addLayout(layout_top)
        layout.addWidget(self.tableWidget_DB)

        return layout

    #
    def MakeUI(self):
        layout_L = self.MakeUI_Left()
        layout_C = self.MakeUI_Center()
        layout_R = self.MakeUI_Right()

        # 레이아웃 설정
        layout = QHBoxLayout()
        layout.addLayout(layout_L, stretch = 10)
        layout.addLayout(layout_C, stretch = 1)
        layout.addLayout(layout_R, stretch = 10)
        
        return layout
    
    #    
    def initUI(self):
        layout = self.MakeUI()
            
        # 레이아웃을 윈도우에 적용
        central_widget = QWidget()
        central_widget.setLayout(layout)
        self.setCentralWidget(central_widget)
        self.setWindowTitle('Manga Database')
        self.resize(800, 600)
        self.show()

    # 테이블의 특정 행에 배경색을 설정한다   
    # nRow: 배경색을 설정할 행 번호, color: 배경색 (Qt.GlobalColor)
    def SrcTableRowBgColor(self, nRow:int, color:Qt.GlobalColor) -> None:
        for col in range(self.tableWidget_Src.columnCount()):
            item = self.tableWidget_Src.item(nRow, col)
            if item:
                item.setBackground(Qt.GlobalColor(color))