package usage

import (
	"context"

	"apps/backend/internal/middleware"
	"apps/backend/internal/response"
	"apps/backend/internal/svc"
	"apps/backend/internal/types"

	"github.com/zeromicro/go-zero/core/logx"
)

type ListUsageEventsLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewListUsageEventsLogic(ctx context.Context, svcCtx *svc.ServiceContext) *ListUsageEventsLogic {
	return &ListUsageEventsLogic{Logger: logx.WithContext(ctx), ctx: ctx, svcCtx: svcCtx}
}

func (l *ListUsageEventsLogic) ListUsageEvents(req *types.UsageEventsReq) (*types.UsageEventsData, error) {
	if l.svcCtx.Usage == nil {
		return nil, response.Biz(503, 503001, "usage not configured")
	}
	uid, ok := middleware.UIDFrom(l.ctx)
	if !ok {
		return nil, response.Biz(401, 401001, "missing authorization")
	}
	list, err := l.svcCtx.Usage.ListEvents(l.ctx, uid, req.MonthKey, req.KeyMode, req.Limit)
	if err != nil {
		return nil, err
	}
	out := make([]types.UsageEventPublic, 0, len(list))
	for _, e := range list {
		out = append(out, types.UsageEventFromDomain(e))
	}
	return &types.UsageEventsData{List: out}, nil
}
