package handlers

import (
	"database/sql"
	"html/template"
	"log"
	"net/http"
	"sort"
	"synlotto-website/helpers"
	"synlotto-website/models"
)

// Home shows latest Thunderball results
func Home(db *sql.DB) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		rows, err := db.Query(`
			SELECT id, draw_date, machine, ballset, ball1, ball2, ball3, ball4, ball5, thunderball
			FROM results_thunderball
			ORDER BY id DESC
		`)
		if err != nil {
			log.Println("❌ DB error:", err)
			http.Error(w, "Database error", http.StatusInternalServerError)
			return
		}
		defer rows.Close()

		var results []models.ThunderballResult

		for rows.Next() {
			var res models.ThunderballResult
			err := rows.Scan(
				&res.Id, &res.DrawDate, &res.Machine, &res.BallSet,
				&res.Ball1, &res.Ball2, &res.Ball3, &res.Ball4, &res.Ball5, &res.Thunderball,
			)
			if err != nil {
				log.Println("❌ Row scan error:", err)
				continue
			}

			res.SortedBalls = []int{
				res.Ball1, res.Ball2, res.Ball3, res.Ball4, res.Ball5,
			}
			sort.Ints(res.SortedBalls)

			results = append(results, res)
		}

		data := BuildTemplateData(db, w, r)
		context := helpers.TemplateContext(w, r, data)
		context["Data"] = results

		tmpl := template.Must(template.New("").Funcs(helpers.TemplateFuncs()).ParseFiles(
			"templates/layout.html",
			"templates/topbar.html",
			"templates/index.html",
		))

		err = tmpl.ExecuteTemplate(w, "layout", context)
		if err != nil {
			log.Println("❌ Template error:", err)
			http.Error(w, "Error rendering homepage", http.StatusInternalServerError)
		}
	}
}