from utils.sql_utils import SQLUtils
import datetime
import os
import logging
from utils.config_loader import ConfigLoader

def init_database():
    # 获取SQLite数据源的路径
    config_loader = ConfigLoader.get_instance()
    sqlite_config = config_loader.get_database_config('sqlite')
    db_path = sqlite_config.get('path', 'db/jtDB.db')
    
    # 确保db目录存在
    db_dir = os.path.dirname(db_path)
    os.makedirs(db_dir, exist_ok=True)
    
    logging.info(f"初始化数据库: {db_path}")
    db = SQLUtils('sqlite', database=db_path)
    
    try:
        db.begin_transaction()
        
        # 创建用户表
        create_user_table_sql = """
        CREATE TABLE IF NOT EXISTS user (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            username VARCHAR(50) NOT NULL UNIQUE,
            password VARCHAR(100) NOT NULL,
            create_time TIMESTAMP NOT NULL,
            create_by VARCHAR(50) NOT NULL,
            update_time TIMESTAMP,
            update_by VARCHAR(50),
            is_deleted BOOLEAN DEFAULT FALSE
        );
        """
        db.execute_query(create_user_table_sql)
        
        # 创建电力消耗表
        create_electricity_table_sql = """
        CREATE TABLE IF NOT EXISTS wsbz_electricity_consumption (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            sync_time TIMESTAMP,
            electricity_number REAL
        );
        """
        db.execute_query(create_electricity_table_sql)
        logging.info("已创建电力消耗表")
        
        # 获取当前时间
        current_time = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
        
        # 插入系统用户
        insert_system_user_sql = """
        INSERT OR IGNORE INTO user (
            username, password, create_time, create_by, is_deleted
        ) VALUES (
            'system', '123456', ?, 'system', FALSE
        );
        """
        db.execute_query(insert_system_user_sql, (current_time,))
        
        # 检查是否存在schema.sql文件，如果存在则执行其中的SQL
        schema_file = 'db/schema.sql'
        if os.path.exists(schema_file):
            with open(schema_file, 'r', encoding='utf-8') as f:
                schema_sql = f.read()
                
            # 按语句分割并执行SQL
            statements = schema_sql.split(';')
            for statement in statements:
                statement = statement.strip()
                if statement:  # 跳过空语句
                    db.execute_query(statement)
            
            logging.info("已执行schema.sql中的数据库初始化脚本")
        
        db.commit_transaction()
        logging.info("数据库初始化成功!")
    except Exception as e:
        db.rollback_transaction()
        logging.error(f"数据库初始化失败: {str(e)}")
    finally:
        db.close()

if __name__ == "__main__":
    init_database()