package handlers

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

	"github.com/gorilla/csrf"
)

func NewTicket(db *sql.DB) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		log.Println("➡️ New ticket form opened")

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

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

func SubmitTicket(db *sql.DB) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		if _, ok := helpers.GetCurrentUserID(r); !ok {
			http.Redirect(w, r, "/login", http.StatusSeeOther)
			return
		}
		ticket := models.MyTicket{
			GameType: r.FormValue("game_type"),
			DrawDate: r.FormValue("draw_date"),
			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")),
			Bonus1:   helpers.Nullable(helpers.Atoi(r.FormValue("bonus1"))),
			Bonus2:   helpers.Nullable(helpers.Atoi(r.FormValue("bonus2"))),
		}

		if err := storage.InsertTicket(db, ticket); err != nil {
			log.Println("❌ Failed to insert ticket:", err)
			http.Error(w, "Error storing ticket", http.StatusInternalServerError)
			return
		}

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

func ListTickets(db *sql.DB) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		log.Println("📋 Tickets page hit")

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

		rows, err := db.Query(`
			SELECT id, game_type, draw_date, ball1, ball2, ball3, ball4, ball5, bonus1, bonus2, duplicate
			FROM my_tickets
			ORDER BY draw_date DESC
		`)
		if err != nil {
			log.Println("❌ Failed to query tickets:", err)
			http.Error(w, "Could not load tickets", http.StatusInternalServerError)
			return
		}
		defer rows.Close()

		var tickets []models.MyTicket
		for rows.Next() {
			var t models.MyTicket
			err := rows.Scan(
				&t.Id, &t.GameType, &t.DrawDate,
				&t.Ball1, &t.Ball2, &t.Ball3, &t.Ball4, &t.Ball5,
				&t.Bonus1, &t.Bonus2, &t.Duplicate,
			)
			if err != nil {
				log.Println("❌ Row scan error:", err)
				continue
			}
			tickets = append(tickets, t)
		}

		err = tmpl.ExecuteTemplate(w, "layout", map[string]any{
			"Page": "tickets",
			"Data": tickets,
		})
		if err != nil {
			log.Println("❌ Template rendering error:", err)
			http.Error(w, "Could not render page", http.StatusInternalServerError)
		}
	}
}