"""Admin routes - Management endpoints"""
from fastapi import APIRouter, HTTPException, Depends, Header
from typing import List, Optional
from datetime import datetime
import secrets
from pydantic import BaseModel
from ..core.auth import AuthManager
from ..core.config import config
from ..services.token_manager import TokenManager
from ..services.proxy_manager import ProxyManager
from ..core.database import Database
from ..core.models import Token, AdminConfig, ProxyConfig

router = APIRouter()

# Dependency injection
token_manager: TokenManager = None
proxy_manager: ProxyManager = None
db: Database = None
generation_handler = None

# Store active admin tokens (in production, use Redis or database)
active_admin_tokens = set()

def set_dependencies(tm: TokenManager, pm: ProxyManager, database: Database, gh=None):
    """Set dependencies"""
    global token_manager, proxy_manager, db, generation_handler
    token_manager = tm
    proxy_manager = pm
    db = database
    generation_handler = gh

def verify_admin_token(authorization: str = Header(None)):
    """Verify admin token from Authorization header"""
    if not authorization:
        raise HTTPException(status_code=401, detail="Missing authorization header")

    # Support both "Bearer token" and "token" formats
    token = authorization
    if authorization.startswith("Bearer "):
        token = authorization[7:]

    if token not in active_admin_tokens:
        raise HTTPException(status_code=401, detail="Invalid or expired token")

    return token

# Request/Response models
class LoginRequest(BaseModel):
    username: str
    password: str

class LoginResponse(BaseModel):
    success: bool
    token: Optional[str] = None
    message: Optional[str] = None

class AddTokenRequest(BaseModel):
    token: str  # Access Token (AT)
    st: Optional[str] = None  # Session Token (optional, for storage)
    rt: Optional[str] = None  # Refresh Token (optional, for storage)
    remark: Optional[str] = None
    image_enabled: bool = True  # Enable image generation
    video_enabled: bool = True  # Enable video generation

class ST2ATRequest(BaseModel):
    st: str  # Session Token

class RT2ATRequest(BaseModel):
    rt: str  # Refresh Token

class UpdateTokenStatusRequest(BaseModel):
    is_active: bool

class UpdateTokenRequest(BaseModel):
    token: Optional[str] = None  # Access Token
    st: Optional[str] = None
    rt: Optional[str] = None
    remark: Optional[str] = None
    image_enabled: Optional[bool] = None  # Enable image generation
    video_enabled: Optional[bool] = None  # Enable video generation

class UpdateAdminConfigRequest(BaseModel):
    error_ban_threshold: int

class UpdateProxyConfigRequest(BaseModel):
    proxy_enabled: bool
    proxy_url: Optional[str] = None

class UpdateAdminPasswordRequest(BaseModel):
    old_password: str
    new_password: str
    username: Optional[str] = None  # Optional: new username

class UpdateAPIKeyRequest(BaseModel):
    new_api_key: str

class UpdateDebugConfigRequest(BaseModel):
    enabled: bool

class UpdateCacheTimeoutRequest(BaseModel):
    timeout: int  # Cache timeout in seconds

class UpdateCacheBaseUrlRequest(BaseModel):
    base_url: str  # Cache base URL (e.g., https://yourdomain.com)

class UpdateGenerationTimeoutRequest(BaseModel):
    image_timeout: Optional[int] = None  # Image generation timeout in seconds
    video_timeout: Optional[int] = None  # Video generation timeout in seconds

class UpdateWatermarkFreeConfigRequest(BaseModel):
    watermark_free_enabled: bool
    parse_method: Optional[str] = "third_party"  # "third_party" or "custom"
    custom_parse_url: Optional[str] = None
    custom_parse_token: Optional[str] = None

# Auth endpoints
@router.post("/api/login", response_model=LoginResponse)
async def login(request: LoginRequest):
    """Admin login"""
    if AuthManager.verify_admin(request.username, request.password):
        # Generate simple token
        token = f"admin-{secrets.token_urlsafe(32)}"
        # Store token in active tokens
        active_admin_tokens.add(token)
        return LoginResponse(success=True, token=token, message="Login successful")
    else:
        return LoginResponse(success=False, message="Invalid credentials")

@router.post("/api/logout")
async def logout(token: str = Depends(verify_admin_token)):
    """Admin logout"""
    # Remove token from active tokens
    active_admin_tokens.discard(token)
    return {"success": True, "message": "Logged out successfully"}

# Token management endpoints
@router.get("/api/tokens")
async def get_tokens(token: str = Depends(verify_admin_token)) -> List[dict]:
    """Get all tokens with statistics"""
    tokens = await token_manager.get_all_tokens()
    result = []

    for token in tokens:
        stats = await db.get_token_stats(token.id)
        result.append({
            "id": token.id,
            "token": token.token,  # 完整的Access Token
            "st": token.st,  # 完整的Session Token
            "rt": token.rt,  # 完整的Refresh Token
            "email": token.email,
            "name": token.name,
            "remark": token.remark,
            "expiry_time": token.expiry_time.isoformat() if token.expiry_time else None,
            "is_active": token.is_active,
            "cooled_until": token.cooled_until.isoformat() if token.cooled_until else None,
            "created_at": token.created_at.isoformat() if token.created_at else None,
            "last_used_at": token.last_used_at.isoformat() if token.last_used_at else None,
            "use_count": token.use_count,
            "image_count": stats.image_count if stats else 0,
            "video_count": stats.video_count if stats else 0,
            "error_count": stats.error_count if stats else 0,
            # 订阅信息
            "plan_type": token.plan_type,
            "plan_title": token.plan_title,
            "subscription_end": token.subscription_end.isoformat() if token.subscription_end else None,
            # Sora2信息
            "sora2_supported": token.sora2_supported,
            "sora2_invite_code": token.sora2_invite_code,
            "sora2_redeemed_count": token.sora2_redeemed_count,
            "sora2_total_count": token.sora2_total_count,
            "sora2_remaining_count": token.sora2_remaining_count,
            "sora2_cooldown_until": token.sora2_cooldown_until.isoformat() if token.sora2_cooldown_until else None,
            # 功能开关
            "image_enabled": token.image_enabled,
            "video_enabled": token.video_enabled
        })

    return result

@router.post("/api/tokens")
async def add_token(request: AddTokenRequest, token: str = Depends(verify_admin_token)):
    """Add a new Access Token"""
    try:
        new_token = await token_manager.add_token(
            token_value=request.token,
            st=request.st,
            rt=request.rt,
            remark=request.remark,
            update_if_exists=False,
            image_enabled=request.image_enabled,
            video_enabled=request.video_enabled
        )
        return {"success": True, "message": "Token 添加成功", "token_id": new_token.id}
    except ValueError as e:
        # Token already exists
        raise HTTPException(status_code=409, detail=str(e))
    except Exception as e:
        raise HTTPException(status_code=400, detail=f"添加 Token 失败: {str(e)}")

@router.post("/api/tokens/st2at")
async def st_to_at(request: ST2ATRequest, token: str = Depends(verify_admin_token)):
    """Convert Session Token to Access Token (only convert, not add to database)"""
    try:
        result = await token_manager.st_to_at(request.st)
        return {
            "success": True,
            "message": "ST converted to AT successfully",
            "access_token": result["access_token"],
            "email": result.get("email"),
            "expires": result.get("expires")
        }
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))

@router.post("/api/tokens/rt2at")
async def rt_to_at(request: RT2ATRequest, token: str = Depends(verify_admin_token)):
    """Convert Refresh Token to Access Token (only convert, not add to database)"""
    try:
        result = await token_manager.rt_to_at(request.rt)
        return {
            "success": True,
            "message": "RT converted to AT successfully",
            "access_token": result["access_token"],
            "refresh_token": result.get("refresh_token"),
            "expires_in": result.get("expires_in")
        }
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))

@router.put("/api/tokens/{token_id}/status")
async def update_token_status(
    token_id: int,
    request: UpdateTokenStatusRequest,
    token: str = Depends(verify_admin_token)
):
    """Update token status"""
    try:
        await token_manager.update_token_status(token_id, request.is_active)

        # Reset error count when enabling token
        if request.is_active:
            await token_manager.record_success(token_id)

        return {"success": True, "message": "Token status updated"}
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))

@router.post("/api/tokens/{token_id}/enable")
async def enable_token(token_id: int, token: str = Depends(verify_admin_token)):
    """Enable a token and reset error count"""
    try:
        await token_manager.enable_token(token_id)
        return {"success": True, "message": "Token enabled", "is_active": 1, "error_count": 0}
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))

@router.post("/api/tokens/{token_id}/disable")
async def disable_token(token_id: int, token: str = Depends(verify_admin_token)):
    """Disable a token"""
    try:
        await token_manager.disable_token(token_id)
        return {"success": True, "message": "Token disabled", "is_active": 0}
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))

@router.post("/api/tokens/{token_id}/test")
async def test_token(token_id: int, token: str = Depends(verify_admin_token)):
    """Test if a token is valid and refresh Sora2 info"""
    try:
        result = await token_manager.test_token(token_id)
        response = {
            "success": True,
            "status": "success" if result["valid"] else "failed",
            "message": result["message"],
            "email": result.get("email"),
            "username": result.get("username")
        }

        # Include Sora2 info if available
        if result.get("valid"):
            response.update({
                "sora2_supported": result.get("sora2_supported"),
                "sora2_invite_code": result.get("sora2_invite_code"),
                "sora2_redeemed_count": result.get("sora2_redeemed_count"),
                "sora2_total_count": result.get("sora2_total_count"),
                "sora2_remaining_count": result.get("sora2_remaining_count")
            })

        return response
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))

@router.delete("/api/tokens/{token_id}")
async def delete_token(token_id: int, token: str = Depends(verify_admin_token)):
    """Delete a token"""
    try:
        await token_manager.delete_token(token_id)
        return {"success": True, "message": "Token deleted"}
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))

@router.put("/api/tokens/{token_id}")
async def update_token(
    token_id: int,
    request: UpdateTokenRequest,
    token: str = Depends(verify_admin_token)
):
    """Update token (AT, ST, RT, remark, image_enabled, video_enabled)"""
    try:
        await token_manager.update_token(
            token_id=token_id,
            token=request.token,
            st=request.st,
            rt=request.rt,
            remark=request.remark,
            image_enabled=request.image_enabled,
            video_enabled=request.video_enabled
        )
        return {"success": True, "message": "Token updated"}
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))

# Admin config endpoints
@router.get("/api/admin/config")
async def get_admin_config(token: str = Depends(verify_admin_token)) -> dict:
    """Get admin configuration"""
    admin_config = await db.get_admin_config()
    return {
        "error_ban_threshold": admin_config.error_ban_threshold,
        "api_key": config.api_key,
        "admin_username": config.admin_username,
        "debug_enabled": config.debug_enabled
    }

@router.post("/api/admin/config")
async def update_admin_config(
    request: UpdateAdminConfigRequest,
    token: str = Depends(verify_admin_token)
):
    """Update admin configuration"""
    try:
        # Get current admin config to preserve username and password
        current_config = await db.get_admin_config()

        # Update only the error_ban_threshold, preserve username and password
        current_config.error_ban_threshold = request.error_ban_threshold

        await db.update_admin_config(current_config)
        return {"success": True, "message": "Configuration updated"}
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))

@router.post("/api/admin/password")
async def update_admin_password(
    request: UpdateAdminPasswordRequest,
    token: str = Depends(verify_admin_token)
):
    """Update admin password and/or username"""
    try:
        # Verify old password
        if not AuthManager.verify_admin(config.admin_username, request.old_password):
            raise HTTPException(status_code=400, detail="Old password is incorrect")

        # Get current admin config from database
        admin_config = await db.get_admin_config()

        # Update password in database
        admin_config.admin_password = request.new_password

        # Update username if provided
        if request.username:
            admin_config.admin_username = request.username

        # Update in database
        await db.update_admin_config(admin_config)

        # Update in-memory config
        config.set_admin_password_from_db(request.new_password)
        if request.username:
            config.set_admin_username_from_db(request.username)

        # Invalidate all admin tokens (force re-login)
        active_admin_tokens.clear()

        return {"success": True, "message": "Password updated successfully. Please login again."}
    except HTTPException:
        raise
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Failed to update password: {str(e)}")

@router.post("/api/admin/apikey")
async def update_api_key(
    request: UpdateAPIKeyRequest,
    token: str = Depends(verify_admin_token)
):
    """Update API key"""
    try:
        # Update in-memory config
        config.api_key = request.new_api_key

        return {"success": True, "message": "API key updated successfully"}
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Failed to update API key: {str(e)}")

@router.post("/api/admin/debug")
async def update_debug_config(
    request: UpdateDebugConfigRequest,
    token: str = Depends(verify_admin_token)
):
    """Update debug configuration"""
    try:
        # Update in-memory config
        config.set_debug_enabled(request.enabled)

        status = "enabled" if request.enabled else "disabled"
        return {"success": True, "message": f"Debug mode {status}", "enabled": request.enabled}
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Failed to update debug config: {str(e)}")

# Proxy config endpoints
@router.get("/api/proxy/config")
async def get_proxy_config(token: str = Depends(verify_admin_token)) -> dict:
    """Get proxy configuration"""
    config = await proxy_manager.get_proxy_config()
    return {
        "proxy_enabled": config.proxy_enabled,
        "proxy_url": config.proxy_url
    }

@router.post("/api/proxy/config")
async def update_proxy_config(
    request: UpdateProxyConfigRequest,
    token: str = Depends(verify_admin_token)
):
    """Update proxy configuration"""
    try:
        await proxy_manager.update_proxy_config(request.proxy_enabled, request.proxy_url)
        return {"success": True, "message": "Proxy configuration updated"}
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))

# Watermark-free config endpoints
@router.get("/api/watermark-free/config")
async def get_watermark_free_config(token: str = Depends(verify_admin_token)) -> dict:
    """Get watermark-free mode configuration"""
    config_obj = await db.get_watermark_free_config()
    return {
        "watermark_free_enabled": config_obj.watermark_free_enabled,
        "parse_method": config_obj.parse_method,
        "custom_parse_url": config_obj.custom_parse_url,
        "custom_parse_token": config_obj.custom_parse_token
    }

@router.post("/api/watermark-free/config")
async def update_watermark_free_config(
    request: UpdateWatermarkFreeConfigRequest,
    token: str = Depends(verify_admin_token)
):
    """Update watermark-free mode configuration"""
    try:
        await db.update_watermark_free_config(
            request.watermark_free_enabled,
            request.parse_method,
            request.custom_parse_url,
            request.custom_parse_token
        )

        # Update in-memory config
        from ..core.config import config
        config.set_watermark_free_enabled(request.watermark_free_enabled)

        return {"success": True, "message": "Watermark-free mode configuration updated"}
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))

# Statistics endpoints
@router.get("/api/stats")
async def get_stats(token: str = Depends(verify_admin_token)):
    """Get system statistics"""
    tokens = await token_manager.get_all_tokens()
    active_tokens = await token_manager.get_active_tokens()
    
    total_images = 0
    total_videos = 0
    total_errors = 0
    
    for token in tokens:
        stats = await db.get_token_stats(token.id)
        if stats:
            total_images += stats.image_count
            total_videos += stats.video_count
            total_errors += stats.error_count
    
    return {
        "total_tokens": len(tokens),
        "active_tokens": len(active_tokens),
        "total_images": total_images,
        "total_videos": total_videos,
        "total_errors": total_errors
    }

# Sora2 endpoints
@router.post("/api/tokens/{token_id}/sora2/activate")
async def activate_sora2(
    token_id: int,
    invite_code: str,
    token: str = Depends(verify_admin_token)
):
    """Activate Sora2 with invite code"""
    try:
        # Get token
        token_obj = await db.get_token(token_id)
        if not token_obj:
            raise HTTPException(status_code=404, detail="Token not found")

        # Activate Sora2
        result = await token_manager.activate_sora2_invite(token_obj.token, invite_code)

        if result.get("success"):
            # Get new invite code after activation
            sora2_info = await token_manager.get_sora2_invite_code(token_obj.token)

            # Get remaining count
            sora2_remaining_count = 0
            try:
                remaining_info = await token_manager.get_sora2_remaining_count(token_obj.token)
                if remaining_info.get("success"):
                    sora2_remaining_count = remaining_info.get("remaining_count", 0)
            except Exception as e:
                print(f"Failed to get Sora2 remaining count: {e}")

            # Update database
            await db.update_token_sora2(
                token_id,
                supported=True,
                invite_code=sora2_info.get("invite_code"),
                redeemed_count=sora2_info.get("redeemed_count", 0),
                total_count=sora2_info.get("total_count", 0),
                remaining_count=sora2_remaining_count
            )

            return {
                "success": True,
                "message": "Sora2 activated successfully",
                "already_accepted": result.get("already_accepted", False),
                "invite_code": sora2_info.get("invite_code"),
                "redeemed_count": sora2_info.get("redeemed_count", 0),
                "total_count": sora2_info.get("total_count", 0),
                "sora2_remaining_count": sora2_remaining_count
            }
        else:
            return {
                "success": False,
                "message": "Failed to activate Sora2"
            }
    except HTTPException:
        raise
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Failed to activate Sora2: {str(e)}")

# Logs endpoints
@router.get("/api/logs")
async def get_logs(limit: int = 100, token: str = Depends(verify_admin_token)):
    """Get recent logs with token email"""
    logs = await db.get_recent_logs(limit)
    return [{
        "id": log.get("id"),
        "token_id": log.get("token_id"),
        "token_email": log.get("token_email"),
        "token_username": log.get("token_username"),
        "operation": log.get("operation"),
        "status_code": log.get("status_code"),
        "duration": log.get("duration"),
        "created_at": log.get("created_at")
    } for log in logs]

# Cache config endpoints
@router.post("/api/cache/config")
async def update_cache_timeout(
    request: UpdateCacheTimeoutRequest,
    token: str = Depends(verify_admin_token)
):
    """Update cache timeout"""
    try:
        if request.timeout < 60:
            raise HTTPException(status_code=400, detail="Cache timeout must be at least 60 seconds")

        if request.timeout > 86400:
            raise HTTPException(status_code=400, detail="Cache timeout cannot exceed 24 hours (86400 seconds)")

        # Update in-memory config
        config.set_cache_timeout(request.timeout)

        # Update database
        await db.update_cache_config(timeout=request.timeout)

        # Update file cache timeout
        if generation_handler:
            generation_handler.file_cache.set_timeout(request.timeout)

        return {
            "success": True,
            "message": f"Cache timeout updated to {request.timeout} seconds",
            "timeout": request.timeout
        }
    except HTTPException:
        raise
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Failed to update cache timeout: {str(e)}")

@router.post("/api/cache/base-url")
async def update_cache_base_url(
    request: UpdateCacheBaseUrlRequest,
    token: str = Depends(verify_admin_token)
):
    """Update cache base URL"""
    try:
        # Validate base URL format (optional, can be empty)
        base_url = request.base_url.strip()
        if base_url and not (base_url.startswith("http://") or base_url.startswith("https://")):
            raise HTTPException(
                status_code=400,
                detail="Base URL must start with http:// or https://"
            )

        # Remove trailing slash
        if base_url:
            base_url = base_url.rstrip('/')

        # Update in-memory config
        config.set_cache_base_url(base_url)

        # Update database
        await db.update_cache_config(base_url=base_url)

        return {
            "success": True,
            "message": f"Cache base URL updated to: {base_url or 'server address'}",
            "base_url": base_url
        }
    except HTTPException:
        raise
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Failed to update cache base URL: {str(e)}")

@router.get("/api/cache/config")
async def get_cache_config(token: str = Depends(verify_admin_token)):
    """Get cache configuration"""
    return {
        "success": True,
        "config": {
            "enabled": config.cache_enabled,
            "timeout": config.cache_timeout,
            "base_url": config.cache_base_url,  # 返回实际配置的值，可能为空字符串
            "effective_base_url": config.cache_base_url or f"http://{config.server_host}:{config.server_port}"  # 实际生效的值
        }
    }

@router.post("/api/cache/enabled")
async def update_cache_enabled(
    request: dict,
    token: str = Depends(verify_admin_token)
):
    """Update cache enabled status"""
    try:
        enabled = request.get("enabled", True)

        # Update in-memory config
        config.set_cache_enabled(enabled)

        # Update database
        await db.update_cache_config(enabled=enabled)

        return {
            "success": True,
            "message": f"Cache {'enabled' if enabled else 'disabled'} successfully",
            "enabled": enabled
        }
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Failed to update cache enabled status: {str(e)}")

# Generation timeout config endpoints
@router.get("/api/generation/timeout")
async def get_generation_timeout(token: str = Depends(verify_admin_token)):
    """Get generation timeout configuration"""
    return {
        "success": True,
        "config": {
            "image_timeout": config.image_timeout,
            "video_timeout": config.video_timeout
        }
    }

@router.post("/api/generation/timeout")
async def update_generation_timeout(
    request: UpdateGenerationTimeoutRequest,
    token: str = Depends(verify_admin_token)
):
    """Update generation timeout configuration"""
    try:
        # Validate timeouts
        if request.image_timeout is not None:
            if request.image_timeout < 60:
                raise HTTPException(status_code=400, detail="Image timeout must be at least 60 seconds")
            if request.image_timeout > 3600:
                raise HTTPException(status_code=400, detail="Image timeout cannot exceed 1 hour (3600 seconds)")

        if request.video_timeout is not None:
            if request.video_timeout < 60:
                raise HTTPException(status_code=400, detail="Video timeout must be at least 60 seconds")
            if request.video_timeout > 7200:
                raise HTTPException(status_code=400, detail="Video timeout cannot exceed 2 hours (7200 seconds)")

        # Update in-memory config
        if request.image_timeout is not None:
            config.set_image_timeout(request.image_timeout)
        if request.video_timeout is not None:
            config.set_video_timeout(request.video_timeout)

        # Update database
        await db.update_generation_config(
            image_timeout=request.image_timeout,
            video_timeout=request.video_timeout
        )

        # Update TokenLock timeout if image timeout was changed
        if request.image_timeout is not None and generation_handler:
            generation_handler.load_balancer.token_lock.set_lock_timeout(config.image_timeout)

        return {
            "success": True,
            "message": "Generation timeout configuration updated",
            "config": {
                "image_timeout": config.image_timeout,
                "video_timeout": config.video_timeout
            }
        }
    except HTTPException:
        raise
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Failed to update generation timeout: {str(e)}")

# AT auto refresh config endpoints
@router.get("/api/token-refresh/config")
async def get_at_auto_refresh_config(token: str = Depends(verify_admin_token)):
    """Get AT auto refresh configuration"""
    return {
        "success": True,
        "config": {
            "at_auto_refresh_enabled": config.at_auto_refresh_enabled
        }
    }

@router.post("/api/token-refresh/enabled")
async def update_at_auto_refresh_enabled(
    request: dict,
    token: str = Depends(verify_admin_token)
):
    """Update AT auto refresh enabled status"""
    try:
        enabled = request.get("enabled", False)

        # Update in-memory config
        config.set_at_auto_refresh_enabled(enabled)

        # Update database
        await db.update_token_refresh_config(enabled)

        return {
            "success": True,
            "message": f"AT auto refresh {'enabled' if enabled else 'disabled'} successfully",
            "enabled": enabled
        }
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Failed to update AT auto refresh enabled status: {str(e)}")