"""
販売アシスト・ダッシュボード（テンプレート）
統合ハブとして全機能へのアクセスを提供
"""

import flet as ft
import sqlite3
import signal
import sys
import logging
from datetime import datetime
from typing import List, Dict, Optional

# ロギング設定
logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s - %(levelname)s - %(message)s'
)

class DashboardTemplate:
    """ダッシュボードテンプレート"""
    
    def __init__(self, page: ft.Page):
        self.page = page
        self.setup_page()
        self.setup_database()
        self.setup_ui()
        
    def setup_page(self):
        """ページ設定"""
        self.page.title = "販売アシスト・ダッシュボード"
        self.page.window.width = 420
        self.page.window.height = 900
        self.page.window.resizable = False
        self.page.window_center = True
        self.page.theme_mode = ft.ThemeMode.LIGHT
        
        # シグナルハンドラ
        def signal_handler(signum, frame):
            logging.info("アプリケーション正常終了")
            sys.exit(0)
        
        signal.signal(signal.SIGINT, signal_handler)
        signal.signal(signal.SIGTERM, signal_handler)
        
    def setup_database(self):
        """データベース初期化"""
        try:
            self.conn = sqlite3.connect('sales_assist.db')
            self.cursor = self.conn.cursor()
            
            # テーブル作成（必要に応じて）
            self.cursor.execute('''
                CREATE TABLE IF NOT EXISTS sales_log (
                    id INTEGER PRIMARY KEY AUTOINCREMENT,
                    date TEXT,
                    amount REAL,
                    product TEXT,
                    customer TEXT
                )
            ''')
            
            self.conn.commit()
            logging.info("データベース接続完了")
            
        except Exception as e:
            logging.error(f"データベースエラー: {e}")
            self.conn = None
    
    def setup_ui(self):
        """UI構築"""
        # ヘッダー
        header = ft.Container(
            content=ft.Column([
                ft.Text(
                    "🏠 販売アシスト",
                    size=24,
                    weight=ft.FontWeight.BOLD,
                    color=ft.Colors.WHITE,
                    text_align=ft.TextAlign.CENTER
                ),
                ft.Text(
                    f"今日: {datetime.now().strftime('%m/%d %H:%M')}",
                    size=14,
                    color=ft.Colors.WHITE,
                    text_align=ft.TextAlign.CENTER
                )
            ], spacing=5),
            padding=20,
            bgcolor=ft.Colors.BLUE_600,
            border_radius=15,
            margin=ft.Margin.only(bottom=20)
        )
        
        # ツールバー（コンパクト）
        toolbar = ft.Container(
            content=ft.Row([
                ft.IconButton(ft.Icons.ADD, tooltip="新規下書き", icon_size=20),
                ft.IconButton(ft.Icons.SEARCH, tooltip="検索", icon_size=20),
                ft.IconButton(ft.Icons.FILTER_LIST, tooltip="フィルター", icon_size=20),
                ft.Container(expand=True),
                ft.IconButton(ft.Icons.SYNC, tooltip="更新", icon_size=20),
            ], spacing=5),
            padding=10,
            bgcolor=ft.Colors.BLUE_50
        )
        
        # 検索バー
        search_bar = ft.Container(
            content=ft.TextField(
                hint_text="下書き・顧客・商品を検索...",
                prefix_icon=ft.Icons.SEARCH,
                filled=True,
                dense=True
            ),
            padding=ft.Padding.symmetric(horizontal=15, vertical=5)
        )
        
        # メイン機能グリッド（参考デザイン風）
        main_grid = ft.Container(
            content=ft.Column([
                ft.Text("🏠 メニュー", size=16, weight=ft.FontWeight.BOLD),
                ft.GridView(
                    runs_count=2,  # 2列グリッド
                    spacing=10,
                    run_spacing=10,
                    controls=[
                        self.create_grid_card("💰", "売上", "売上管理", ft.Colors.GREEN, "app_simple_working.py"),
                        self.create_grid_card("👥", "顧客", "顧客管理", ft.Colors.ORANGE, "app_master_management.py"),
                        self.create_grid_card("📦", "商品", "商品管理", ft.Colors.PURPLE, "app_hierarchical_product_master.py"),
                        self.create_grid_card("📋", "伝票", "伝票管理", ft.Colors.RED, "app_slip_framework_demo.py"),
                        self.create_grid_card("🔍", "検索", "伝票検索", ft.Colors.BLUE, "app_slip_explorer.py"),
                        self.create_grid_card("📱", "操作", "インタラクティブ", ft.Colors.CYAN, "app_slip_interactive.py"),
                    ]
                )
            ], spacing=10),
            padding=15,
            bgcolor=ft.Colors.WHITE,
            border_radius=15,
            shadow=ft.BoxShadow(
                spread_radius=1,
                blur_radius=5,
                color=ft.Colors.GREY_300,
                offset=ft.Offset(0, 2)
            ),
            margin=ft.Margin.only(bottom=15)
        )
        
        # 下書き一覧（コンパクト）
        draft_section = ft.Container(
            content=ft.Column([
                ft.Text("📝 最近の下書き", size=16, weight=ft.FontWeight.BOLD),
                ft.Divider(height=1),
                self.create_draft_item("売上メモ", "顧客: 田中様", "2分前"),
                self.create_draft_item("商品リスト", "新商品10件", "1時間前"),
                ft.Container(
                    content=ft.Button("＋ もっと見る", bgcolor=ft.Colors.BLUE_50, color=ft.Colors.BLUE_700),
                    alignment=ft.alignment.Alignment(0, 0)
                )
            ], spacing=8),
            padding=15,
            bgcolor=ft.Colors.WHITE,
            border_radius=15,
            margin=ft.Margin.only(bottom=15)
        )
        
        # 設定セクション
        settings_section = ft.Container(
            content=ft.Row([
                ft.IconButton(ft.Icons.SETTINGS, icon_size=20),
                ft.Text("設定", size=14),
                ft.Container(expand=True),
                ft.Icon(ft.Icons.CHEVRON_RIGHT, size=16, color=ft.Colors.GREY_400)
            ]),
            padding=15,
            bgcolor=ft.Colors.WHITE,
            border_radius=10,
            border=ft.Border.all(1, ft.Colors.GREY_200)
        )
        
        # 状態サマリー
        status_summary = ft.Container(
            content=ft.Column([
                ft.Text("📈 状態サマリー", size=18, weight=ft.FontWeight.BOLD),
                ft.Divider(height=1, thickness=1),
                self.get_status_info()
            ], spacing=10),
            padding=20,
            bgcolor=ft.Colors.BLUE_50,
            border_radius=15,
            margin=ft.Margin.only(bottom=20)
        )
        
        # Debug情報
        debug_info = ft.Container(
            content=ft.Column([
                ft.Text("🔧 Debug情報", size=16, weight=ft.FontWeight.BOLD),
                ft.Text(f"DB接続: {'✅' if self.conn else '❌'}", size=12),
                ft.Text(f"ウィンドウ: 420x900", size=12),
                ft.Text(f"テーマ: ライト", size=12),
            ], spacing=5),
            padding=15,
            bgcolor=ft.Colors.GREY_100,
            border_radius=10
        )
        
        # メインコンテナ（再構成）
        self.main_container = ft.Column([
            header,
            search_bar,
            main_grid,
            draft_section,
            settings_section
        ], spacing=5, scroll=ft.ScrollMode.AUTO)
        
        # ページに追加
        self.page.add(
            ft.Container(
                content=self.main_container,
                padding=10,  # 20 → 10に縮小
                bgcolor=ft.Colors.GREY_50,
                expand=True
            )
        )
    
    def create_grid_card(self, icon: str, title: str, subtitle: str, color: ft.Colors, app_file: str) -> ft.Container:
        """グリッドカード作成（参考デザイン風）"""
        return ft.Container(
            content=ft.Column([
                ft.Container(
                    content=ft.Text(icon, size=32),
                    width=60,
                    height=60,
                    bgcolor=color,
                    alignment=ft.alignment.Alignment(0, 0),
                    border_radius=15,
                    margin=ft.Margin.only(bottom=10)
                ),
                ft.Text(title, size=14, weight=ft.FontWeight.BOLD, text_align=ft.TextAlign.CENTER),
                ft.Text(subtitle, size=10, color=ft.Colors.GREY_600, text_align=ft.TextAlign.CENTER)
            ], spacing=5),
            padding=15,
            bgcolor=ft.Colors.WHITE,
            border_radius=15,
            border=ft.Border.all(1, ft.Colors.GREY_200),
            on_click=lambda _: self.launch_app(app_file, title)
        )
    
    def create_draft_item(self, title: str, description: str, time: str) -> ft.Container:
        """下書きアイテム作成"""
        return ft.Container(
            content=ft.Row([
                ft.Column([
                    ft.Text(title, size=14, weight=ft.FontWeight.BOLD),
                    ft.Text(description, size=12, color=ft.Colors.GREY_600)
                ], expand=True),
                ft.Text(time, size=10, color=ft.Colors.GREY_500)
            ], spacing=10),
            padding=10,
            bgcolor=ft.Colors.GREY_50,
            border_radius=8,
            border=ft.Border.all(1, ft.Colors.GREY_200)
        )
    
    def get_status_info(self) -> ft.Column:
        """状態情報取得"""
        if not self.conn:
            return ft.Column([
                ft.Text("データベース未接続", size=12, color=ft.Colors.RED),
                ft.Text("機能制限中", size=12, color=ft.Colors.ORANGE)
            ], spacing=5)
        
        try:
            # 今日の売上件数
            today = datetime.now().strftime('%Y-%m-%d')
            self.cursor.execute("SELECT COUNT(*) FROM sales_log WHERE date = ?", (today,))
            today_sales = self.cursor.fetchone()[0]
            
            return ft.Column([
                ft.Text(f"今日の売上: {today_sales}件", size=14, color=ft.Colors.BLUE_700),
                ft.Text("システム状態: 正常", size=14, color=ft.Colors.GREEN_600),
                ft.Text("最終更新: 剛剣", size=12, color=ft.Colors.GREY_600)
            ], spacing=5)
            
        except Exception as e:
            return ft.Column([
                ft.Text("状態取得エラー", size=12, color=ft.Colors.RED),
                ft.Text(str(e), size=10, color=ft.Colors.GREY_600)
            ], spacing=5)
    
    def launch_app(self, app_file: str, app_name: str):
        """アプリ起動"""
        import subprocess
        
        try:
            # SnackBarで通知
            self.page.snack_bar = ft.SnackBar(
                content=ft.Text(f"{app_name}を起動中..."),
                bgcolor=ft.Colors.BLUE
            )
            self.page.snack_bar.open = True
            self.page.update()
            
            # サブプロセスで起動
            subprocess.Popen(['python', app_file])
            logging.info(f"{app_name}起動: {app_file}")
            
        except Exception as e:
            logging.error(f"{app_name}起動エラー: {e}")
            self.page.snack_bar = ft.SnackBar(
                content=ft.Text(f"起動エラー: {e}"),
                bgcolor=ft.Colors.RED
            )
            self.page.snack_bar.open = True
            self.page.update()

def main(page: ft.Page):
    """メイン関数"""
    try:
        dashboard = DashboardTemplate(page)
        logging.info("ダッシュボード起動完了")
        
    except Exception as e:
        logging.error(f"ダッシュボード起動エラー: {e}")
        page.snack_bar = ft.SnackBar(
            content=ft.Text(f"起動エラー: {e}"),
            bgcolor=ft.Colors.RED
        )
        page.snack_bar.open = True
        page.update()

if __name__ == "__main__":
    ft.run(main)