"""设置数据访问层"""
import json
import aiosqlite
from typing import Optional, Dict, Any
from app.core.log import logger


DEFAULT_SETTINGS = {
    "crawl_timeout": 30,
    "validation_timeout": 10,
    "max_retries": 3,
    "default_concurrency": 50,
    "min_proxy_score": 0,
    "proxy_expiry_days": 7,
    "auto_validate": True,
    "validate_interval_minutes": 30,
}


class SettingsRepository:
    """系统设置 Repository"""

    @staticmethod
    async def get_all(db: aiosqlite.Connection) -> Dict[str, Any]:
        settings = DEFAULT_SETTINGS.copy()
        try:
            async with db.execute("SELECT key, value FROM settings") as cursor:
                rows = await cursor.fetchall()
                for key, value in rows:
                    # 类型转换
                    default = DEFAULT_SETTINGS.get(key)
                    if isinstance(default, bool):
                        settings[key] = value.lower() == "true"
                    elif isinstance(default, int):
                        settings[key] = int(value)
                    else:
                        settings[key] = value
        except Exception as e:
            logger.error(f"get_all settings failed: {e}")
        return settings

    @staticmethod
    async def save(db: aiosqlite.Connection, settings: Dict[str, Any]) -> bool:
        try:
            for key, value in settings.items():
                await db.execute(
                    """
                    INSERT INTO settings (key, value, updated_at)
                    VALUES (?, ?, CURRENT_TIMESTAMP)
                    ON CONFLICT(key) DO UPDATE SET
                        value = excluded.value,
                        updated_at = CURRENT_TIMESTAMP
                    """,
                    (key, str(value)),
                )
            await db.commit()
            return True
        except Exception as e:
            logger.error(f"save settings failed: {e}")
            return False


class PluginSettingsRepository:
    """插件设置 Repository"""

    @staticmethod
    async def get_enabled(db: aiosqlite.Connection, plugin_id: str) -> Optional[bool]:
        async with db.execute(
            "SELECT enabled FROM plugin_settings WHERE plugin_id = ?", (plugin_id,)
        ) as cursor:
            row = await cursor.fetchone()
            if row:
                return bool(row[0])
            return None

    @staticmethod
    async def set_enabled(db: aiosqlite.Connection, plugin_id: str, enabled: bool) -> bool:
        try:
            await db.execute(
                """
                INSERT INTO plugin_settings (plugin_id, enabled, created_at, updated_at)
                VALUES (?, ?, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
                ON CONFLICT(plugin_id) DO UPDATE SET
                    enabled = excluded.enabled,
                    updated_at = CURRENT_TIMESTAMP
                """,
                (plugin_id, int(enabled)),
            )
            await db.commit()
            return True
        except Exception as e:
            logger.error(f"set_enabled failed for {plugin_id}: {e}")
            return False

    @staticmethod
    async def get_config(db: aiosqlite.Connection, plugin_id: str) -> Optional[Dict[str, Any]]:
        async with db.execute(
            "SELECT config_json FROM plugin_settings WHERE plugin_id = ?", (plugin_id,)
        ) as cursor:
            row = await cursor.fetchone()
            if row and row[0]:
                try:
                    return json.loads(row[0])
                except json.JSONDecodeError:
                    return None
            return None

    @staticmethod
    async def set_config(db: aiosqlite.Connection, plugin_id: str, config: Dict[str, Any]) -> bool:
        try:
            await db.execute(
                """
                INSERT INTO plugin_settings (plugin_id, config_json, updated_at)
                VALUES (?, ?, CURRENT_TIMESTAMP)
                ON CONFLICT(plugin_id) DO UPDATE SET
                    config_json = excluded.config_json,
                    updated_at = CURRENT_TIMESTAMP
                """,
                (plugin_id, json.dumps(config, ensure_ascii=False)),
            )
            await db.commit()
            return True
        except Exception as e:
            logger.error(f"set_config failed for {plugin_id}: {e}")
            return False

    @staticmethod
    async def get_stats(db: aiosqlite.Connection, plugin_id: str) -> Dict[str, Any]:
        async with db.execute(
            "SELECT stats_json FROM plugin_settings WHERE plugin_id = ?", (plugin_id,)
        ) as cursor:
            row = await cursor.fetchone()
            if row and row[0]:
                try:
                    return json.loads(row[0])
                except json.JSONDecodeError:
                    return {}
            return {}

    @staticmethod
    async def set_stats(db: aiosqlite.Connection, plugin_id: str, stats: Dict[str, Any]) -> bool:
        try:
            await db.execute(
                """
                INSERT INTO plugin_settings (plugin_id, stats_json, updated_at)
                VALUES (?, ?, CURRENT_TIMESTAMP)
                ON CONFLICT(plugin_id) DO UPDATE SET
                    stats_json = excluded.stats_json,
                    updated_at = CURRENT_TIMESTAMP
                """,
                (plugin_id, json.dumps(stats, ensure_ascii=False)),
            )
            await db.commit()
            return True
        except Exception as e:
            logger.error(f"set_stats failed for {plugin_id}: {e}")
            return False

    @staticmethod
    async def list_all(db: aiosqlite.Connection) -> Dict[str, Dict[str, Any]]:
        result = {}
        async with db.execute("SELECT plugin_id, enabled, config_json, stats_json FROM plugin_settings") as cursor:
            rows = await cursor.fetchall()
            for plugin_id, enabled, config_json, stats_json in rows:
                config = {}
                if config_json:
                    try:
                        config = json.loads(config_json)
                    except json.JSONDecodeError:
                        pass
                stats = {}
                if stats_json:
                    try:
                        stats = json.loads(stats_json)
                    except json.JSONDecodeError:
                        pass
                result[plugin_id] = {"enabled": bool(enabled), "config": config, "stats": stats}
        return result