"""
数据库迁移脚本 v2 - 直接执行 ALTER TABLE
"""
import os
import sys
sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))

from sqlalchemy import text
from app.database import engine

def run_migration():
    print("=" * 50)
    print("蜂鸟Pro v2.1 数据库迁移 (ALTER TABLE)")
    print("=" * 50)

    # 需要添加的列
    alter_statements = [
        # ===== cursor_accounts 表 =====
        # 重命名 access_token -> token (如果存在)
        ("cursor_accounts", "ALTER TABLE cursor_accounts CHANGE COLUMN access_token token TEXT NOT NULL"),
        # 添加新列
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN account_type VARCHAR(20) DEFAULT 'unknown'"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN membership_type VARCHAR(50) NULL"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN billing_cycle_start DATETIME NULL"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN billing_cycle_end DATETIME NULL"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN trial_days_remaining INT DEFAULT 0"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN usage_limit INT DEFAULT 0"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN usage_used INT DEFAULT 0"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN usage_remaining INT DEFAULT 0"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN usage_percent DECIMAL(5,2) DEFAULT 0"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN total_requests INT DEFAULT 0"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN total_input_tokens BIGINT DEFAULT 0"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN total_output_tokens BIGINT DEFAULT 0"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN total_cost_cents DECIMAL(10,2) DEFAULT 0"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN locked_by_key_id INT NULL"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN locked_at DATETIME NULL"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN last_analyzed_at DATETIME NULL"),
        ("cursor_accounts", "ALTER TABLE cursor_accounts ADD COLUMN analyze_error VARCHAR(500) NULL"),

        # ===== activation_keys 表 =====
        ("activation_keys", "ALTER TABLE activation_keys ADD COLUMN master_key_id INT NULL"),
        ("activation_keys", "ALTER TABLE activation_keys ADD COLUMN merged_count INT DEFAULT 0"),
        ("activation_keys", "ALTER TABLE activation_keys ADD COLUMN merged_at DATETIME NULL"),
        ("activation_keys", "ALTER TABLE activation_keys ADD COLUMN duration_days INT DEFAULT 30"),
        ("activation_keys", "ALTER TABLE activation_keys ADD COLUMN quota_contribution INT DEFAULT 500"),
        ("activation_keys", "ALTER TABLE activation_keys ADD COLUMN seamless_enabled BOOLEAN DEFAULT FALSE"),
        ("activation_keys", "ALTER TABLE activation_keys ADD COLUMN last_active_at DATETIME NULL"),

        # ===== global_settings 表 =====
        ("global_settings", "ALTER TABLE global_settings ADD COLUMN value_type VARCHAR(20) DEFAULT 'string'"),
        ("global_settings", "ALTER TABLE global_settings ADD COLUMN description VARCHAR(500) NULL"),
    ]

    print("\n[1/3] 添加缺失的列...")
    with engine.connect() as conn:
        for table, sql in alter_statements:
            try:
                conn.execute(text(sql))
                conn.commit()
                print(f"✓ [{table}] 成功")
            except Exception as e:
                err = str(e)
                if "Duplicate column" in err or "Unknown column" in err:
                    print(f"⊘ [{table}] 跳过 (列已存在或源列不存在)")
                else:
                    print(f"⚠ [{table}] {err[:60]}")

    print("\n[2/3] 更新状态枚举值...")
    update_sqls = [
        "UPDATE cursor_accounts SET status = 'available' WHERE status = 'active'",
        "UPDATE cursor_accounts SET status = 'exhausted' WHERE status = 'expired'",
        "UPDATE cursor_accounts SET status = 'pending' WHERE status IS NULL OR status = ''",
        "UPDATE activation_keys SET membership_type = 'auto' WHERE membership_type = 'free'",
    ]
    with engine.connect() as conn:
        for sql in update_sqls:
            try:
                conn.execute(text(sql))
                conn.commit()
                print(f"✓ {sql[:50]}...")
            except Exception as e:
                print(f"⚠ 跳过: {str(e)[:50]}")

    print("\n[3/3] 初始化全局设置...")
    settings_sql = """
    INSERT IGNORE INTO global_settings (`key`, value, value_type, description) VALUES
        ('key_max_devices', '2', 'int', '主密钥最大设备数'),
        ('auto_merge_enabled', 'true', 'bool', '是否启用同类型密钥自动合并'),
        ('auto_analyze_enabled', 'false', 'bool', '是否启用自动账号分析'),
        ('auto_switch_enabled', 'true', 'bool', '是否启用自动换号'),
        ('account_analyze_interval', '300', 'int', '账号分析间隔(秒)'),
        ('account_analyze_batch_size', '10', 'int', '每批分析账号数量'),
        ('auto_switch_threshold', '98', 'int', 'Auto池自动换号阈值'),
        ('pro_switch_threshold', '98', 'int', 'Pro池自动换号阈值'),
        ('max_switch_per_day', '50', 'int', '每日最大换号次数'),
        ('auto_daily_switches', '999', 'int', 'Auto密钥每日换号次数限制'),
        ('pro_quota_per_switch', '1', 'int', 'Pro密钥每次换号消耗积分')
    """
    with engine.connect() as conn:
        try:
            conn.execute(text(settings_sql))
            conn.commit()
            print("✓ 全局设置初始化完成")
        except Exception as e:
            print(f"⚠ {e}")

    print("\n" + "=" * 50)
    print("迁移完成! 请重启后端服务")
    print("=" * 50)

if __name__ == "__main__":
    run_migration()