package logic

import (
	"context"
	"fmt"

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

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

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

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

func (l *TotalKillCountLogic) TotalKillCount(req *types.TotalKillCountReq) (resp *types.TotalKillCountResp, err error) {
	query := `
		SELECT COUNT(*)
		FROM steam_union.event_player_death_log
		WHERE event_player_death_time >= TO_TIMESTAMP($1 / 1000.0)
			AND event_player_death_time <= TO_TIMESTAMP($2 / 1000.0)
			AND attacker_steamid64 > 1
	`

	args := []interface{}{req.TimeRangeStart, req.TimeRangeEnd}
	argIndex := 3

	// Add headshot filter if requested
	if req.HeadshotOnly {
		query += ` AND headshot = true`
	}

	// Add weapon filter if provided
	if len(req.WeaponFilter) > 0 {
		query += fmt.Sprintf(` AND weapon = ANY($%d)`, argIndex)
		args = append(args, req.WeaponFilter)
		argIndex++
	}

	// Add player filter if provided
	if len(req.PlayerFilter) > 0 {
		// Convert []string to []int64 for steamid64
		steamIDs := make([]int64, len(req.PlayerFilter))
		for i, id := range req.PlayerFilter {
			fmt.Sscanf(id, "%d", &steamIDs[i])
		}
		query += fmt.Sprintf(` AND attacker_steamid64 = ANY($%d)`, argIndex)
		args = append(args, steamIDs)
	}

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

	return &types.TotalKillCountResp{
		TotalKillCount: count,
	}, nil
}