package admin

import (
	"net/http"
	"strconv"
	"time"

	"bindbox-game/internal/code"
	"bindbox-game/internal/pkg/core"
	"bindbox-game/internal/pkg/validation"
	"bindbox-game/internal/repository/mysql/model"
)

type simpleMessageResponse struct {
	Message string `json:"message"`
}

type createItemCardRequest struct {
	Name                  string `json:"name" binding:"required"`
	Status                int32  `json:"status"`
	CardType              int32  `json:"card_type" binding:"required"`
	ScopeType             int32  `json:"scope_type" binding:"required"`
	ActivityCategoryID    int64  `json:"activity_category_id"`
	ActivityID            int64  `json:"activity_id"`
	IssueID               int64  `json:"issue_id"`
	Price                 int64  `json:"price" binding:"required"`
	ValidStartUnix        *int64 `json:"valid_start_unix"`
	ValidEndUnix          *int64 `json:"valid_end_unix"`
	EffectType            int32  `json:"effect_type" binding:"required"`
	RewardMultiplierX1000 int32  `json:"reward_multiplier_x1000"`
	BoostRateX1000        int32  `json:"boost_rate_x1000"`
	StackingStrategy      int32  `json:"stacking_strategy"`
	MaxEffectValueX1000   int32  `json:"max_effect_value_x1000"`
	Remark                string `json:"remark"`
}

type createItemCardResponse struct {
	ID      int64  `json:"id"`
	Message string `json:"message"`
}

// CreateSystemItemCard 创建道具卡
// @Summary 创建道具卡
// @Description 管理员创建新的道具卡，支持设置类型、效果、有效期等属性
// @Tags 管理端.运营管理
// @Accept json
// @Produce json
// @Param RequestBody body createItemCardRequest true "创建道具卡请求参数"
// @Success 200 {object} createItemCardResponse
// @Failure 400 {object} code.Failure "参数错误"
// @Failure 401 {object} code.Failure "未授权"
// @Failure 403 {object} code.Failure "无权限，仅超管可操作"
// @Failure 500 {object} code.Failure "服务器内部错误"
// @Router /api/admin/system_item_cards [post]
func (h *handler) CreateSystemItemCard() core.HandlerFunc {
	return func(ctx core.Context) {
		req := new(createItemCardRequest)
		res := new(createItemCardResponse)
		if err := ctx.ShouldBindJSON(req); err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, validation.Error(err)))
			return
		}
		if ctx.SessionUserInfo().IsSuper != 1 {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, "禁止操作"))
			return
		}
		item := &model.SystemItemCards{
			Name: req.Name,
			Status: func() int32 {
				if req.Status == 0 {
					return 1
				}
				return req.Status
			}(),
			CardType:              req.CardType,
			ScopeType:             req.ScopeType,
			ActivityCategoryID:    req.ActivityCategoryID,
			ActivityID:            req.ActivityID,
			IssueID:               req.IssueID,
			Price:                 req.Price,
			EffectType:            req.EffectType,
			RewardMultiplierX1000: req.RewardMultiplierX1000,
			BoostRateX1000:        req.BoostRateX1000,
			StackingStrategy: func() int32 {
				if req.StackingStrategy == 0 {
					return 1
				}
				return req.StackingStrategy
			}(),
			MaxEffectValueX1000: req.MaxEffectValueX1000,
			Remark:              req.Remark,
		}
		do := h.writeDB.SystemItemCards.WithContext(ctx.RequestContext())
		if req.ValidStartUnix != nil {
			item.ValidStart = time.Unix(*req.ValidStartUnix, 0)
		}
		if req.ValidEndUnix != nil {
			item.ValidEnd = time.Unix(*req.ValidEndUnix, 0)
		} else {
			do = do.Omit(h.writeDB.SystemItemCards.ValidEnd)
		}
		if err := do.Create(item); err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, err.Error()))
			return
		}
		res.ID = item.ID
		res.Message = "操作成功"
		ctx.Payload(res)
	}
}

type modifyItemCardRequest struct {
	Name                  *string `json:"name"`
	Status                *int32  `json:"status"`
	CardType              *int32  `json:"card_type"`
	ScopeType             *int32  `json:"scope_type"`
	ActivityCategoryID    *int64  `json:"activity_category_id"`
	ActivityID            *int64  `json:"activity_id"`
	IssueID               *int64  `json:"issue_id"`
	Price                 *int64  `json:"price"`
	ValidStartUnix        *int64  `json:"valid_start_unix"`
	ValidEndUnix          *int64  `json:"valid_end_unix"`
	EffectType            *int32  `json:"effect_type"`
	RewardMultiplierX1000 *int32  `json:"reward_multiplier_x1000"`
	BoostRateX1000        *int32  `json:"boost_rate_x1000"`
	StackingStrategy      *int32  `json:"stacking_strategy"`
	MaxEffectValueX1000   *int32  `json:"max_effect_value_x1000"`
	Remark                *string `json:"remark"`
}

// ModifySystemItemCard 修改道具卡
// @Summary 修改道具卡
// @Description 管理员修改道具卡信息，支持修改名称、价格、有效期等属性
// @Tags 管理端.运营管理
// @Accept json
// @Produce json
// @Param item_card_id path integer true "道具卡ID"
// @Param RequestBody body modifyItemCardRequest true "修改道具卡请求参数"
// @Success 200 {object} simpleMessageResponse
// @Failure 400 {object} code.Failure "参数错误"
// @Failure 401 {object} code.Failure "未授权"
// @Failure 403 {object} code.Failure "无权限，仅超管可操作"
// @Failure 500 {object} code.Failure "服务器内部错误"
// @Router /api/admin/system_item_cards/{item_card_id} [put]
func (h *handler) ModifySystemItemCard() core.HandlerFunc {
	return func(ctx core.Context) {
		req := new(modifyItemCardRequest)
		if err := ctx.ShouldBindJSON(req); err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, validation.Error(err)))
			return
		}
		idStr := ctx.Param("item_card_id")
		id, _ := strconv.ParseInt(idStr, 10, 64)
		if ctx.SessionUserInfo().IsSuper != 1 {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, "禁止操作"))
			return
		}
		set := map[string]any{}
		if req.Name != nil {
			set["name"] = *req.Name
		}
		if req.Status != nil {
			set["status"] = *req.Status
		}
		if req.CardType != nil {
			set["card_type"] = *req.CardType
		}
		if req.ScopeType != nil {
			set["scope_type"] = *req.ScopeType
		}
		if req.ActivityCategoryID != nil {
			set["activity_category_id"] = *req.ActivityCategoryID
		}
		if req.ActivityID != nil {
			set["activity_id"] = *req.ActivityID
		}
		if req.IssueID != nil {
			set["issue_id"] = *req.IssueID
		}
		if req.Price != nil {
			set["price"] = *req.Price
		}
		if req.EffectType != nil {
			set["effect_type"] = *req.EffectType
		}
		if req.RewardMultiplierX1000 != nil {
			set["reward_multiplier_x1000"] = *req.RewardMultiplierX1000
		}
		if req.BoostRateX1000 != nil {
			set["boost_rate_x1000"] = *req.BoostRateX1000
		}
		if req.StackingStrategy != nil {
			set["stacking_strategy"] = *req.StackingStrategy
		}
		if req.MaxEffectValueX1000 != nil {
			set["max_effect_value_x1000"] = *req.MaxEffectValueX1000
		}
		if req.Remark != nil {
			set["remark"] = *req.Remark
		}
		if req.ValidStartUnix != nil {
			set["valid_start"] = time.Unix(*req.ValidStartUnix, 0)
		}
		if req.ValidEndUnix != nil {
			set["valid_end"] = time.Unix(*req.ValidEndUnix, 0)
		}
		if len(set) == 0 {
			ctx.Payload(simpleMessageResponse{Message: "操作成功"})
			return
		}
		if _, err := h.writeDB.SystemItemCards.WithContext(ctx.RequestContext()).Where(h.writeDB.SystemItemCards.ID.Eq(id)).Updates(set); err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, err.Error()))
			return
		}
		ctx.Payload(simpleMessageResponse{Message: "操作成功"})
	}
}

// DeleteSystemItemCard 删除道具卡
// @Summary 删除道具卡
// @Description 管理员删除指定的道具卡
// @Tags 管理端.运营管理
// @Accept json
// @Produce json
// @Param item_card_id path integer true "道具卡ID"
// @Success 200 {object} simpleMessageResponse
// @Failure 400 {object} code.Failure "参数错误"
// @Failure 401 {object} code.Failure "未授权"
// @Failure 403 {object} code.Failure "无权限，仅超管可操作"
// @Failure 500 {object} code.Failure "服务器内部错误"
// @Router /api/admin/system_item_cards/{item_card_id} [delete]
func (h *handler) DeleteSystemItemCard() core.HandlerFunc {
    return func(ctx core.Context) {
        idStr := ctx.Param("item_card_id")
        id, _ := strconv.ParseInt(idStr, 10, 64)
        if ctx.SessionUserInfo().IsSuper != 1 {
            ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, "禁止操作"))
            return
        }
        uid := int64(ctx.SessionUserInfo().Id)
        set := map[string]any{"deleted_at": time.Now(), "deleted_by": uid}
        if _, err := h.writeDB.SystemItemCards.WithContext(ctx.RequestContext()).Where(h.writeDB.SystemItemCards.ID.Eq(id)).Updates(set); err != nil {
            ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, err.Error()))
            return
        }
        ctx.Payload(simpleMessageResponse{Message: "操作成功"})
    }
}

type listItemCardsRequest struct {
	Name      string `form:"name"`
	Status    int32  `form:"status"`
	CardType  int32  `form:"card_type"`
	ScopeType int32  `form:"scope_type"`
	Page      int    `form:"page"`
	PageSize  int    `form:"page_size"`
}

type itemCardListItem struct {
	*model.SystemItemCards
}

type listItemCardsResponse struct {
	Page     int                `json:"page"`
	PageSize int                `json:"page_size"`
	Total    int64              `json:"total"`
	List     []itemCardListItem `json:"list"`
}

// ListSystemItemCards 获取道具卡列表
// @Summary 获取道具卡列表
// @Description 管理员获取道具卡列表，支持按名称、状态、类型等条件筛选
// @Tags 管理端.运营管理
// @Accept json
// @Produce json
// @Param name query string false "道具卡名称"
// @Param status query integer false "状态：1启用 2禁用"
// @Param card_type query integer false "道具卡类型：1抽奖卡 2加成卡 3保底卡"
// @Param scope_type query integer false "适用范围：1全局 2活动分类 3活动 4期次"
// @Param page query integer false "页码，默认1"
// @Param page_size query integer false "每页条数，默认10"
// @Success 200 {object} listItemCardsResponse
// @Failure 400 {object} code.Failure "参数错误"
// @Failure 401 {object} code.Failure "未授权"
// @Failure 500 {object} code.Failure "服务器内部错误"
// @Router /api/admin/system_item_cards [get]
func (h *handler) ListSystemItemCards() core.HandlerFunc {
	return func(ctx core.Context) {
		req := new(listItemCardsRequest)
		res := new(listItemCardsResponse)
		if err := ctx.ShouldBindForm(req); err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, validation.Error(err)))
			return
		}
		q := h.readDB.SystemItemCards.WithContext(ctx.RequestContext()).ReadDB()
		if req.Name != "" {
			q = q.Where(h.readDB.SystemItemCards.Name.Like("%" + req.Name + "%"))
		}
		if req.Status != 0 {
			q = q.Where(h.readDB.SystemItemCards.Status.Eq(req.Status))
		}
		if req.CardType != 0 {
			q = q.Where(h.readDB.SystemItemCards.CardType.Eq(req.CardType))
		}
		if req.ScopeType != 0 {
			q = q.Where(h.readDB.SystemItemCards.ScopeType.Eq(req.ScopeType))
		}
		total, err := q.Count()
		if err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ListActivitiesError, err.Error()))
			return
		}
		if req.Page <= 0 {
			req.Page = 1
		}
		if req.PageSize <= 0 {
			req.PageSize = 20
		}
		if req.PageSize > 100 {
			req.PageSize = 100
		}
		rows, err := q.Order(h.readDB.SystemItemCards.ID.Desc()).Offset((req.Page - 1) * req.PageSize).Limit(req.PageSize).Find()
		if err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ListActivitiesError, err.Error()))
			return
		}
		res.Page = req.Page
		res.PageSize = req.PageSize
		res.Total = total
		res.List = make([]itemCardListItem, len(rows))
		for i, r := range rows {
			res.List[i] = itemCardListItem{SystemItemCards: r}
		}
		ctx.Payload(res)
	}
}

type assignItemCardRequest struct {
	CardID   int64 `json:"card_id" binding:"required"`
	Quantity int   `json:"quantity"`
}

// AssignUserItemCard 给用户分配道具卡
// @Summary 给用户分配道具卡
// @Description 管理员给指定用户分配道具卡，可指定数量
// @Tags 管理端.运营管理
// @Accept json
// @Produce json
// @Param user_id path integer true "用户ID"
// @Param RequestBody body assignItemCardRequest true "分配道具卡请求参数"
// @Success 200 {object} simpleMessageResponse
// @Failure 400 {object} code.Failure "参数错误"
// @Failure 401 {object} code.Failure "未授权"
// @Failure 403 {object} code.Failure "无权限，仅超管可操作"
// @Failure 500 {object} code.Failure "服务器内部错误"
// @Router /api/admin/users/{user_id}/item_cards [post]
func (h *handler) AssignUserItemCard() core.HandlerFunc {
	return func(ctx core.Context) {
		req := new(assignItemCardRequest)
		if err := ctx.ShouldBindJSON(req); err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, validation.Error(err)))
			return
		}
		userID, err := strconv.ParseInt(ctx.Param("user_id"), 10, 64)
		if err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, "未传递用户ID"))
			return
		}
		if ctx.SessionUserInfo().IsSuper != 1 {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, "禁止操作"))
			return
		}
		if err := h.user.AddItemCard(ctx.RequestContext(), userID, req.CardID, req.Quantity); err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, err.Error()))
			return
		}
		ctx.Payload(simpleMessageResponse{Message: "操作成功"})
	}
}