package reward

import (
	"context"
	"fmt"
	"server/internal/consts"
	"server/internal/dao"
	"server/internal/model"
	"server/internal/model/do"
	"server/internal/service"
	"server/utility/ecode"

	"github.com/gogf/gf/v2/database/gdb"
	"github.com/gogf/gf/v2/errors/gerror"
)

type sReward struct{}

func New() service.IReward {
	return &sReward{}
}

func init() {
	service.RegisterReward(New())
}

// CreateSystemReward 创建系统奖励
func (s *sReward) CreateSystemReward(ctx context.Context, in *model.RewardCreateIn) (out *model.CreateOut, err error) {
	if in.Name == "" {
		return nil, gerror.New("奖励名称不能为空")
	}
	exist, err := dao.RewardTypes.Ctx(ctx).WherePri(in.RewardTypeID).Exist()
	if err != nil {
		return nil, ecode.Fail.Sub("奖励类型不存在")
	}
	if !exist {
		return nil, ecode.Params.Sub("奖励类型不存在")
	}

	//  TODO 生成奖励唯一 code

	// 插入数据
	id, err := dao.Rewards.Ctx(ctx).Data(do.Rewards{
		RewardTypeId: in.RewardTypeID,
		RewardScope:  consts.SystemReward, // 系统奖励
		Name:         in.Name,
		Code:         "",
		Description:  in.Description,
		Status:       in.Status,
		Stock:        in.Stock,
		StartAt:      in.StartAt,
		ExpireAt:     in.ExpireAt,
	}).OmitEmptyData().InsertAndGetId()
	if err != nil {
		return nil, ecode.Fail.Sub("创建奖励失败")
	}
	return &model.CreateOut{
		Id: id,
	}, nil
}

// CreateStoreReward 创建门店奖励
func (s *sReward) CreateStoreReward(ctx context.Context, in *model.RewardCreateIn) (out *model.CreateOut, err error) {
	if in.OperatorRole != consts.MerchantRoleCode && in.OperatorRole != consts.AdminRoleCode {
		return nil, ecode.Params.Sub("只有管理员和商户才能创建门店奖励")
	}
	// 验证 OperatorId 对 门店 id 是否存在权限
	if in.OperatorRole == consts.MerchantRoleCode {
		count, err := dao.MerchantAdmins.Ctx(ctx).LeftJoin(
			dao.Stores.Table(),
			fmt.Sprintf("%s.%s=%s.%s", dao.Stores.Table(), dao.Stores.Columns().MerchantId, dao.MerchantAdmins.Table(), dao.MerchantAdmins.Columns().MerchantId),
		).Where(dao.Stores.Columns().Id, in.StoreIDs).WherePri(in.OperatorId).Count()
		if err != nil {
			return nil, gerror.Wrap(err, "检查商户权限失败")
		}
		if count != len(in.StoreIDs) {
			return nil, ecode.Params.Sub("商户权限不足")
		}
	} else {
		count, err := dao.StoreAdmins.Ctx(ctx).
			LeftJoin(
				dao.Stores.Table(),
				fmt.Sprintf("%s.%s=%s.%s", dao.Stores.Table(), dao.Stores.Columns().Id, dao.StoreAdmins.Table(), dao.StoreAdmins.Columns().StoreId),
			).WherePri(in.OperatorId).WhereIn(dao.Stores.Columns().Id, in.StoreIDs).Count()
		if err != nil {
			return nil, gerror.Wrap(err, "检查门店权限失败")
		}
		if count != len(in.StoreIDs) {
			return nil, ecode.Params.Sub("门店权限不足")
		}

	}
	if in.Name == "" {
		return nil, gerror.New("奖励名称不能为空")
	}
	exist, err := dao.RewardTypes.Ctx(ctx).WherePri(in.RewardTypeID).Exist()
	if err != nil {
		return nil, ecode.Fail.Sub("奖励类型不存在")
	}
	if !exist {
		return nil, ecode.Params.Sub("奖励类型不存在")
	}
	if err = dao.Rewards.Transaction(ctx, func(ctx context.Context, tx gdb.TX) error {
		//  TODO 生成奖励唯一 code

		// 首先插入奖励
		id, err := dao.Rewards.Ctx(ctx).Data(do.Rewards{
			RewardTypeId: in.RewardTypeID,
			RewardScope:  consts.StoreReward, // 门店奖励
			Name:         in.Name,
			Code:         "",
			Description:  in.Description,
			Status:       in.Status,
			Stock:        in.Stock,
			StartAt:      in.StartAt,
			ExpireAt:     in.ExpireAt,
		}).OmitEmptyData().InsertAndGetId() // 忽略空值插入
		if err != nil {
			return ecode.Fail.Sub("创建门店奖励失败")
		}
		insertDatas := make([]do.StoreRewards, 0, len(in.StoreIDs))
		// 插入门店奖励关系表
		for _, d := range in.StoreIDs {
			insertDatas = append(insertDatas, do.StoreRewards{
				RewardId: id,
				StoreId:  d,
			})
		}
		if _, err := dao.StoreRewards.Ctx(ctx).Data(insertDatas).Insert(); err != nil {
			return ecode.Fail.Sub("创建门店奖励关联失败")
		}
		return nil
	}); err != nil {
		return nil, err
	}
	return
}

// ListSystemReward 查询系统奖励列表
func (s *sReward) ListSystemReward(ctx context.Context, in *model.RewardListIn) (out *model.RewardListOut, err error) {
	return
}

// ListStoreReward 查询门店奖励列表
func (s *sReward) ListStoreReward(ctx context.Context, in *model.RewardListIn) (out *model.RewardListOut, err error) {
	return
}

// UpdateSystemReward 更新系统奖励
func (s *sReward) UpdateSystemReward(ctx context.Context, in *model.RewardUpdateIn) (out *model.UpdateOut, err error) {
	return
}

// UpdateStoreReward 更新门店奖励
func (s *sReward) UpdateStoreReward(ctx context.Context, in *model.RewardUpdateIn) (out *model.UpdateOut, err error) {
	return
}

// DeleteSystemReward 删除系统奖励
func (s *sReward) DeleteSystemReward(ctx context.Context, in *model.RewardDeleteIn) (out *model.DeleteOut, err error) {
	return
}

// DeleteStoreReward 删除门店奖励
func (s *sReward) DeleteStoreReward(ctx context.Context, in *model.RewardDeleteIn) (out *model.DeleteOut, err error) {
	return
}

func (s *sReward) Detail(ctx context.Context, in *model.RewardDetailIn) (out *model.RewardDetailOut, err error) {
	return
}