#!/usr/bin/env python3
"""
重建 Asset 和 Energy 模块数据表并插入 Mock 数据
- Asset 表 → oneos_asset 数据库
- Energy 表 → oneos_energy 数据库
- 使用 pymysql 连接远程 MySQL（规避本地 mysql 客户端 auth plugin 问题）
"""

import os
import sys
import re

try:
    import pymysql
except ImportError:
    print("pymysql 未安装，正在安装...")
    os.system(f"{sys.executable} -m pip install pymysql")
    import pymysql

# 数据库连接配置
DB_CONFIG = {
    "host": "47.103.115.36",
    "port": 3306,
    "user": "root",
    "password": "Passw0rd2026",
    "charset": "utf8mb4",
}

SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))


def read_sql_file(filename):
    """读取 SQL 文件内容"""
    filepath = os.path.join(SCRIPT_DIR, filename)
    with open(filepath, "r", encoding="utf-8") as f:
        return f.read()


def split_statements(sql_text):
    """
    将 SQL 文本拆分为独立语句。
    处理 CREATE VIEW 等多行语句，跳过注释和空行。
    """
    statements = []
    current = []
    for line in sql_text.split("\n"):
        stripped = line.strip()
        # 跳过纯注释行和空行（但保留语句中间的注释）
        if not stripped or stripped.startswith("--"):
            if current:
                # 如果当前语句已经开始，保留注释行（可能是语句内的注释）
                pass
            continue
        current.append(line)
        if stripped.endswith(";"):
            stmt = "\n".join(current).strip()
            if stmt:
                statements.append(stmt)
            current = []
    # 处理没有分号结尾的最后一条语句
    if current:
        stmt = "\n".join(current).strip()
        if stmt:
            statements.append(stmt)
    return statements


def execute_sql(cursor, sql_text, label=""):
    """执行一段 SQL（可包含多条语句）"""
    statements = split_statements(sql_text)
    success = 0
    errors = 0
    for i, stmt in enumerate(statements, 1):
        # 提取语句摘要用于日志
        first_line = stmt.split("\n")[0][:80]
        try:
            cursor.execute(stmt)
            success += 1
        except pymysql.err.OperationalError as e:
            code = e.args[0]
            # 1051: Unknown table (DROP 不存在的表) - 忽略
            if code == 1051:
                success += 1
            else:
                errors += 1
                print(f"  ❌ [{label}] 语句 {i} 失败: {e}")
                print(f"     SQL: {first_line}...")
        except Exception as e:
            errors += 1
            print(f"  ❌ [{label}] 语句 {i} 失败: {e}")
            print(f"     SQL: {first_line}...")
    return success, errors


def main():
    print("=" * 60)
    print("ONE-OS 数据表重建工具")
    print("=" * 60)

    # 读取 SQL 文件
    print("\n📄 读取 SQL 文件...")
    asset_ddl = read_sql_file("asset_ddl.sql")
    energy_ddl = read_sql_file("energy_ddl.sql")
    mock_data = read_sql_file("mock_data.sql")

    # 拆分 mock_data 为 asset 和 energy 部分
    parts = mock_data.split("-- ===================== PART 2: ENERGY =====================")
    if len(parts) != 2:
        print("❌ mock_data.sql 格式错误：找不到 PART 2 分隔符")
        sys.exit(1)
    asset_mock = parts[0]
    energy_mock = parts[1]

    # 从 asset_mock 中去掉文件头注释和 PART 1 标记
    # 保留实际的 INSERT 语句

    total_success = 0
    total_errors = 0

    # ========== 1. 处理 Asset 数据库 ==========
    print("\n" + "=" * 60)
    print("🔧 [1/3] 重建 oneos_asset 数据库表...")
    print("=" * 60)

    conn_asset = pymysql.connect(**DB_CONFIG, database="oneos_asset")
    conn_asset.autocommit(True)
    cursor_asset = conn_asset.cursor()

    # 创建 Asset 表
    print("\n📋 执行 Asset DDL（29张表 + 1个视图）...")
    s, e = execute_sql(cursor_asset, asset_ddl, "Asset DDL")
    total_success += s
    total_errors += e
    print(f"  ✅ Asset DDL: {s} 成功, {e} 失败")

    # 插入 Asset Mock 数据
    print("\n📋 插入 Asset Mock 数据...")
    s, e = execute_sql(cursor_asset, asset_mock, "Asset Mock")
    total_success += s
    total_errors += e
    print(f"  ✅ Asset Mock: {s} 成功, {e} 失败")

    cursor_asset.close()
    conn_asset.close()

    # ========== 2. 处理 Energy 数据库 ==========
    print("\n" + "=" * 60)
    print("🔧 [2/3] 重建 oneos_energy 数据库表...")
    print("=" * 60)

    # 先确保 oneos_energy 数据库存在
    conn_init = pymysql.connect(**DB_CONFIG)
    conn_init.autocommit(True)
    cursor_init = conn_init.cursor()
    cursor_init.execute("CREATE DATABASE IF NOT EXISTS `oneos_energy` DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci")
    cursor_init.close()
    conn_init.close()

    conn_energy = pymysql.connect(**DB_CONFIG, database="oneos_energy")
    conn_energy.autocommit(True)
    cursor_energy = conn_energy.cursor()

    # 创建 Energy 表
    print("\n📋 执行 Energy DDL（9张表）...")
    s, e = execute_sql(cursor_energy, energy_ddl, "Energy DDL")
    total_success += s
    total_errors += e
    print(f"  ✅ Energy DDL: {s} 成功, {e} 失败")

    # 插入 Energy Mock 数据
    print("\n📋 插入 Energy Mock 数据...")
    s, e = execute_sql(cursor_energy, energy_mock, "Energy Mock")
    total_success += s
    total_errors += e
    print(f"  ✅ Energy Mock: {s} 成功, {e} 失败")

    cursor_energy.close()
    conn_energy.close()

    # ========== 3. 验证 ==========
    print("\n" + "=" * 60)
    print("🔍 [3/3] 验证表结构和数据...")
    print("=" * 60)

    # 验证 Asset
    conn_v = pymysql.connect(**DB_CONFIG, database="oneos_asset")
    cursor_v = conn_v.cursor()
    cursor_v.execute("SELECT TABLE_NAME, TABLE_ROWS FROM information_schema.TABLES WHERE TABLE_SCHEMA = 'oneos_asset' AND TABLE_TYPE = 'BASE TABLE' ORDER BY TABLE_NAME")
    asset_tables = cursor_v.fetchall()
    print(f"\n📊 oneos_asset 数据库: {len(asset_tables)} 张表")
    for table_name, row_count in asset_tables:
        cursor_v.execute(f"SELECT COUNT(*) FROM `{table_name}`")
        actual_count = cursor_v.fetchone()[0]
        print(f"  {table_name}: {actual_count} 行")
    cursor_v.close()
    conn_v.close()

    # 验证 Energy
    conn_v2 = pymysql.connect(**DB_CONFIG, database="oneos_energy")
    cursor_v2 = conn_v2.cursor()
    cursor_v2.execute("SELECT TABLE_NAME, TABLE_ROWS FROM information_schema.TABLES WHERE TABLE_SCHEMA = 'oneos_energy' AND TABLE_TYPE = 'BASE TABLE' ORDER BY TABLE_NAME")
    energy_tables = cursor_v2.fetchall()
    print(f"\n📊 oneos_energy 数据库: {len(energy_tables)} 张表")
    for table_name, row_count in energy_tables:
        cursor_v2.execute(f"SELECT COUNT(*) FROM `{table_name}`")
        actual_count = cursor_v2.fetchone()[0]
        print(f"  {table_name}: {actual_count} 行")
    cursor_v2.close()
    conn_v2.close()

    # ========== 总结 ==========
    print("\n" + "=" * 60)
    print(f"🎉 完成! 总计: {total_success} 成功, {total_errors} 失败")
    print("=" * 60)

    if total_errors > 0:
        sys.exit(1)


if __name__ == "__main__":
    main()