"""
应用市场审核 API（管理员）
"""
from fastapi import APIRouter, Depends, HTTPException, Query
from sqlalchemy.orm import Session
from ...database import get_db, SessionLocal
from ...models import MarketApp, Coupon, UserCoupon, User
from ...auth import get_current_admin
from ...middleware.log_service import LogService
import uuid
from datetime import datetime

router = APIRouter()


# ============================================================
# 应用审核管理
# ============================================================

@router.get("/apps/pending")
async def get_pending_apps(
    admin_user=Depends(get_current_admin),
    db: Session = Depends(get_db),
):
    """获取待审核应用列表"""
    apps = db.query(MarketApp).filter(
        MarketApp.status == "pending"
    ).order_by(MarketApp.created_at.desc()).limit(1000).all()

    return [
        {
            "id": a.id,
            "name": a.name,
            "type": a.type,
            "source": a.source,
            "publisher_id": a.publisher_id,
            "publisher_name": a.publisher_name,
            "description": a.description,
            "icon": a.icon,
            "tutorial": a.tutorial,
            "price": float(a.price) if a.price else 0,
            "is_member_free": a.is_member_free,
            "join_promotion": a.join_promotion,
            "status": a.status,
            "rating_avg": float(a.rating_avg) if a.rating_avg else 0,
            "review_count": a.review_count,
            "install_count": a.install_count,
            "skill_content": a.skill_content,
            "mcp_transport": a.mcp_transport,
            "agent_endpoint": a.agent_endpoint,
            "created_at": a.created_at.isoformat() if a.created_at else None,
            "updated_at": a.updated_at.isoformat() if a.updated_at else None,
        }
        for a in apps
    ]


@router.put("/apps/{id}/approve")
async def approve_app(
    id: str,
    admin_user=Depends(get_current_admin),
    db: Session = Depends(get_db),
):
    """审核通过应用"""
    app = db.query(MarketApp).filter(MarketApp.id == id).first()
    if not app:
        raise HTTPException(status_code=404, detail="应用不存在")

    app.status = "published"
    app.updated_at = datetime.now()
    db.commit()

    LogService.log_audit(
        admin_id=admin_user.id,
        admin_name=admin_user.username,
        action="approve_app",
        target_type="market_app",
        target_id=id,
        detail=f"审核通过应用 {app.name}",
    )

    return {"message": "应用审核通过"}


@router.put("/apps/{id}/reject")
async def reject_app(
    id: str,
    admin_user=Depends(get_current_admin),
    db: Session = Depends(get_db),
):
    """审核拒绝应用"""
    app = db.query(MarketApp).filter(MarketApp.id == id).first()
    if not app:
        raise HTTPException(status_code=404, detail="应用不存在")

    app.status = "removed"
    app.updated_at = datetime.now()
    db.commit()

    LogService.log_audit(
        admin_id=admin_user.id,
        admin_name=admin_user.username,
        action="reject_app",
        target_type="market_app",
        target_id=id,
        detail=f"审核拒绝应用 {app.name}",
    )

    return {"message": "应用审核已拒绝"}


@router.get("/apps")
async def get_all_apps(
    status: str = Query(None, description="状态筛选: pending/published/removed"),
    app_type: str = Query(None, description="类型筛选: skill/agent/mcp"),
    page: int = Query(1, ge=1),
    page_size: int = Query(20, ge=1, le=100),
    admin_user=Depends(get_current_admin),
    db: Session = Depends(get_db),
):
    """获取所有应用列表（管理员）"""
    query = db.query(MarketApp)

    if status:
        query = query.filter(MarketApp.status == status)
    if app_type:
        query = query.filter(MarketApp.type == app_type)

    total = query.count()
    apps = query.order_by(MarketApp.created_at.desc()).offset(
        (page - 1) * page_size
    ).limit(page_size).all()

    return {
        "total": total,
        "page": page,
        "page_size": page_size,
        "items": [
            {
                "id": a.id,
                "name": a.name,
                "type": a.type,
                "source": a.source,
                "publisher_id": a.publisher_id,
                "publisher_name": a.publisher_name,
                "description": a.description,
                "icon": a.icon,
                "tutorial": a.tutorial,
                "price": float(a.price) if a.price else 0,
                "is_member_free": a.is_member_free,
                "join_promotion": a.join_promotion,
                "status": a.status,
                "rating_avg": float(a.rating_avg) if a.rating_avg else 0,
                "review_count": a.review_count,
                "install_count": a.install_count,
                "created_at": a.created_at.isoformat() if a.created_at else None,
                "updated_at": a.updated_at.isoformat() if a.updated_at else None,
            }
            for a in apps
        ],
    }


@router.put("/apps/{id}")
async def admin_edit_app(
    id: str,
    name: str = None,
    description: str = None,
    icon: str = None,
    price: float = None,
    is_member_free: bool = None,
    join_promotion: bool = None,
    tutorial: str = None,
    admin_user=Depends(get_current_admin),
    db: Session = Depends(get_db),
):
    """管理员编辑应用"""
    app = db.query(MarketApp).filter(MarketApp.id == id).first()
    if not app:
        raise HTTPException(status_code=404, detail="应用不存在")

    if name is not None:
        app.name = name
    if description is not None:
        app.description = description
    if icon is not None:
        app.icon = icon
    if price is not None:
        app.price = price
    if is_member_free is not None:
        app.is_member_free = is_member_free
    if join_promotion is not None:
        app.join_promotion = join_promotion
    if tutorial is not None:
        app.tutorial = tutorial
    app.updated_at = datetime.now()
    db.commit()

    LogService.log_audit(
        admin_id=admin_user.id,
        admin_name=admin_user.username,
        action="edit_market_app",
        target_type="market_app",
        target_id=id,
        detail=f"管理员编辑应用 {app.name}",
    )

    return {"message": "应用已更新"}


# ============================================================
# 优惠券管理
# ============================================================

@router.get("/coupons")
async def get_coupons(
    status: str = Query(None, description="状态筛选: active/expired/disabled"),
    admin_user=Depends(get_current_admin),
    db: Session = Depends(get_db),
):
    """获取优惠券列表"""
    query = db.query(Coupon)

    if status:
        query = query.filter(Coupon.status == status)

    coupons = query.order_by(Coupon.created_at.desc()).limit(1000).all()
    return [
        {
            "id": c.id,
            "code": c.code,
            "type": c.type,
            "value": float(c.value) if c.value else 0,
            "min_amount": float(c.min_amount) if c.min_amount else 0,
            "valid_from": c.valid_from.isoformat() if c.valid_from else None,
            "valid_to": c.valid_to.isoformat() if c.valid_to else None,
            "total_count": c.total_count,
            "used_count": c.used_count,
            "status": c.status,
            "created_at": c.created_at.isoformat() if c.created_at else None,
        }
        for c in coupons
    ]


@router.post("/coupons")
async def create_coupon(
    code: str,
    coupon_type: str,
    value: float,
    valid_from: str,
    valid_to: str,
    min_amount: float = 0,
    total_count: int = None,
    status: str = "active",
    admin_user=Depends(get_current_admin),
    db: Session = Depends(get_db),
):
    """创建优惠券"""
    # 检查code是否已存在
    existing = db.query(Coupon).filter(Coupon.code == code).first()
    if existing:
        raise HTTPException(status_code=400, detail="优惠券码已存在")

    coupon = Coupon(
        id=str(uuid.uuid4()),
        code=code,
        type=coupon_type,
        value=value,
        min_amount=min_amount,
        valid_from=datetime.fromisoformat(valid_from),
        valid_to=datetime.fromisoformat(valid_to),
        total_count=total_count,
        status=status,
    )
    db.add(coupon)
    db.commit()

    LogService.log_audit(
        admin_id=admin_user.id,
        admin_name=admin_user.username,
        action="create_coupon",
        target_type="coupon",
        target_id=coupon.id,
        detail=f"创建优惠券 {code}",
    )

    return {"message": "优惠券已创建", "id": coupon.id}


@router.put("/coupons/{id}")
async def update_coupon(
    id: str,
    code: str = None,
    value: float = None,
    min_amount: float = None,
    valid_from: str = None,
    valid_to: str = None,
    total_count: int = None,
    status: str = None,
    admin_user=Depends(get_current_admin),
    db: Session = Depends(get_db),
):
    """更新优惠券"""
    coupon = db.query(Coupon).filter(Coupon.id == id).first()
    if not coupon:
        raise HTTPException(status_code=404, detail="优惠券不存在")

    if code is not None:
        # 检查新code是否重复
        if code != coupon.code:
            dup = db.query(Coupon).filter(Coupon.code == code).first()
            if dup:
                raise HTTPException(status_code=400, detail="优惠券码已存在")
        coupon.code = code
    if value is not None:
        coupon.value = value
    if min_amount is not None:
        coupon.min_amount = min_amount
    if valid_from is not None:
        coupon.valid_from = datetime.fromisoformat(valid_from)
    if valid_to is not None:
        coupon.valid_to = datetime.fromisoformat(valid_to)
    if total_count is not None:
        coupon.total_count = total_count
    if status is not None:
        coupon.status = status

    db.commit()

    LogService.log_audit(
        admin_id=admin_user.id,
        admin_name=admin_user.username,
        action="update_coupon",
        target_type="coupon",
        target_id=id,
        detail=f"更新优惠券 {coupon.code}",
    )

    return {"message": "优惠券已更新"}


@router.delete("/coupons/{id}")
async def delete_coupon(
    id: str,
    admin_user=Depends(get_current_admin),
    db: Session = Depends(get_db),
):
    """删除优惠券"""
    coupon = db.query(Coupon).filter(Coupon.id == id).first()
    if not coupon:
        raise HTTPException(status_code=404, detail="优惠券不存在")

    db.delete(coupon)
    db.commit()

    LogService.log_audit(
        admin_id=admin_user.id,
        admin_name=admin_user.username,
        action="delete_coupon",
        target_type="coupon",
        target_id=id,
        detail=f"删除优惠券 {coupon.code}",
    )

    return {"message": "优惠券已删除"}


@router.post("/coupons/{id}/assign")
async def assign_coupon(
    id: str,
    user_id: str,
    admin_user=Depends(get_current_admin),
    db: Session = Depends(get_db),
):
    """发放优惠券给用户"""
    coupon = db.query(Coupon).filter(Coupon.id == id).first()
    if not coupon:
        raise HTTPException(status_code=404, detail="优惠券不存在")
    if coupon.status != "active":
        raise HTTPException(status_code=400, detail="优惠券非活跃状态")

    user = db.query(User).filter(User.id == user_id).first()
    if not user:
        raise HTTPException(status_code=404, detail="用户不存在")

    # 检查是否已发放
    existing = db.query(UserCoupon).filter(
        UserCoupon.user_id == user_id,
        UserCoupon.coupon_id == id,
    ).first()
    if existing:
        raise HTTPException(status_code=400, detail="该用户已拥有此优惠券")

    user_coupon = UserCoupon(
        id=str(uuid.uuid4()),
        user_id=user_id,
        coupon_id=id,
    )
    db.add(user_coupon)
    db.commit()

    LogService.log_audit(
        admin_id=admin_user.id,
        admin_name=admin_user.username,
        action="assign_coupon",
        target_type="coupon",
        target_id=id,
        detail=f"发放优惠券 {coupon.code} 给用户 {user.username}",
    )

    return {"message": "优惠券已发放"}