package services

import (
	"database/sql"
	"fmt"
	"synlotto-website/internal/helpers"
	"synlotto-website/internal/models"
	thunderballRules "synlotto-website/internal/rules/thunderball"
)

func MatchTicketToDraw(ticket models.MatchTicket, draw models.DrawResult, rules []models.PrizeRule, db *sql.DB) models.MatchResult {
	mainMatches := helpers.CountMatches(ticket.Balls, draw.Balls)
	bonusMatches := helpers.CountMatches(ticket.BonusBalls, draw.BonusBalls)

	prizeTier := GetPrizeTier(ticket.GameType, mainMatches, bonusMatches, rules)
	isWinner := prizeTier != ""

	result := models.MatchResult{
		MatchedDrawID: draw.DrawID,
		MatchedMain:   mainMatches,
		MatchedBonus:  bonusMatches,
		PrizeTier:     prizeTier,
		IsWinner:      isWinner,
	}

	if ticket.GameType == "Thunderball" && isWinner {
		if idx, ok := thunderballRules.GetThunderballPrizeIndex(mainMatches, bonusMatches); ok {
			query := fmt.Sprintf(`SELECT prize%d_per_winner FROM prizes_thunderball WHERE draw_date = ?`, idx)

			var amount int
			err := db.QueryRow(query, draw.DrawDate).Scan(&amount)
			if err == nil {
				result.PrizeAmount = float64(amount)
				if amount == 0 {
					result.PrizeLabel = "Free Ticket"
				} else {
					result.PrizeLabel = fmt.Sprintf("£%.2f", float64(amount))
				}
			}
		}
	}

	return result
}

func GetPrizeTier(game string, main, bonus int, rules []models.PrizeRule) string {
	for _, rule := range rules {
		if rule.Game == game && rule.MainMatches == main && rule.BonusMatches == bonus {
			return rule.Tier
		}
	}

	return ""
}