package logic

import (
	"context"

	"git.cialloo.com/CiallooWeb/ServerStatistics/app/internal/svc"
	"git.cialloo.com/CiallooWeb/ServerStatistics/app/internal/types"

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

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

// Get total player count within a specified time range
func NewTotalPlayerCountLogic(ctx context.Context, svcCtx *svc.ServiceContext) *TotalPlayerCountLogic {
	return &TotalPlayerCountLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *TotalPlayerCountLogic) TotalPlayerCount(req *types.TotalPlayerCountReq) (resp *types.TotalPlayerCountResp, err error) {
	query := `
		SELECT COUNT(DISTINCT steamid64)
		FROM steam_user
		WHERE jointime >= TO_TIMESTAMP($1 / 1000.0) 
			AND jointime <= TO_TIMESTAMP($2 / 1000.0)
			AND steamid64 > 1
	`

	var count int64
	err = l.svcCtx.DB.QueryRowContext(l.ctx, query, req.TimeRangeStart, req.TimeRangeEnd).Scan(&count)
	if err != nil {
		l.Errorf("Failed to query total player count: %v", err)
		return nil, err
	}

	return &types.TotalPlayerCountResp{
		Count: count,
	}, nil
}