package handlers

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

	"github.com/gorilla/csrf"
)

func Home(db *sql.DB) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		log.Println("✅ Home hit")

		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 {
			http.Error(w, "Database error", http.StatusInternalServerError)
			log.Println("❌ DB error:", err)
			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)
		}

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

		tmpl := template.Must(template.ParseFiles(
			"templates/layout.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)
			return
		}
	}
}

func NewDraw(w http.ResponseWriter, r *http.Request) {
	log.Println("➡️ New draw form opened")

	tmpl := template.Must(template.ParseFiles(
		"templates/layout.html",
		"templates/new_draw.html",
	))

	err := tmpl.ExecuteTemplate(w, "layout", map[string]interface{}{
		"csrfField": csrf.TemplateField(r),
		"Page":      "new_draw",
		"Data":      nil,
	})
	if err != nil {
		log.Println("❌ Template error:", err)
		http.Error(w, "Error rendering form", http.StatusInternalServerError)
	}
}

func Submit(w http.ResponseWriter, r *http.Request) {
	log.Println("📝 Form submission received")
	r.ParseForm()

	draw := models.ThunderballResult{
		DrawDate:    r.FormValue("date"),
		Machine:     r.FormValue("machine"),
		BallSet:     helpers.Atoi(r.FormValue("ballSet")),
		Ball1:       helpers.Atoi(r.FormValue("ball1")),
		Ball2:       helpers.Atoi(r.FormValue("ball2")),
		Ball3:       helpers.Atoi(r.FormValue("ball3")),
		Ball4:       helpers.Atoi(r.FormValue("ball4")),
		Ball5:       helpers.Atoi(r.FormValue("ball5")),
		Thunderball: helpers.Atoi(r.FormValue("thunderball")),
	}

	Draws = append(Draws, draw)

	log.Printf("📅 %s | 🛠 %s | 🎱 %d | 🔢 %d,%d,%d,%d,%d | ⚡ %d\n",
		draw.DrawDate, draw.Machine, draw.BallSet,
		draw.Ball1, draw.Ball2, draw.Ball3, draw.Ball4, draw.Ball5, draw.Thunderball)

	http.Redirect(w, r, "/", http.StatusSeeOther)
}