Refactor and remove sqlite and replace with MySQL

internal/handlers/admin/draws.go

@@ -0,0 +1,111 @@
+package handlers
+
+import (
+	"database/sql"
+	"log"
+	"net/http"
+
+	httpHelpers "synlotto-website/helpers/http"
+	templateHelpers "synlotto-website/helpers/template"
+
+	"synlotto-website/models"
+)
+
+func NewDrawHandler(db *sql.DB) http.HandlerFunc {
+	return httpHelpers.AuthMiddleware(func(w http.ResponseWriter, r *http.Request) {
+		data := models.TemplateData{}
+		context := templateHelpers.TemplateContext(w, r, data)
+
+		if r.Method == http.MethodPost {
+			game := r.FormValue("game_type")
+			date := r.FormValue("draw_date")
+			machine := r.FormValue("machine")
+			ballset := r.FormValue("ball_set")
+
+			_, err := db.Exec(`INSERT INTO results_thunderball (game_type, draw_date, machine, ball_set) VALUES (?, ?, ?, ?)`,
+				game, date, machine, ballset)
+			if err != nil {
+				http.Error(w, "Failed to add draw", http.StatusInternalServerError)
+				return
+			}
+
+			http.Redirect(w, r, "/admin/dashboard", http.StatusSeeOther)
+			return
+		}
+
+		tmpl := templateHelpers.LoadTemplateFiles("new_draw", "templates/admin/draws/new_draw.html")
+
+		tmpl.ExecuteTemplate(w, "layout", context)
+	})
+}
+
+func ModifyDrawHandler(db *sql.DB) http.HandlerFunc {
+	return httpHelpers.AuthMiddleware(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method == http.MethodPost {
+			id := r.FormValue("id")
+			_, err := db.Exec(`UPDATE results_thunderball SET game_type=?, draw_date=?, ball_set=?, machine=? WHERE id=?`,
+				r.FormValue("game_type"), r.FormValue("draw_date"), r.FormValue("ball_set"), r.FormValue("machine"), id)
+			if err != nil {
+				http.Error(w, "Update failed", http.StatusInternalServerError)
+				return
+			}
+			http.Redirect(w, r, "/admin/dashboard", http.StatusSeeOther)
+			return
+		}
+		// For GET: load draw by ID (pseudo-code)
+		// id := r.URL.Query().Get("id")
+		// query DB, pass into context.Draw
+	})
+}
+
+func DeleteDrawHandler(db *sql.DB) http.HandlerFunc {
+	return httpHelpers.AuthMiddleware(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method == http.MethodPost {
+			id := r.FormValue("id")
+			_, err := db.Exec(`DELETE FROM results_thunderball WHERE id = ?`, id)
+			if err != nil {
+				http.Error(w, "Delete failed", http.StatusInternalServerError)
+				return
+			}
+			http.Redirect(w, r, "/admin/dashboard", http.StatusSeeOther)
+			return
+		}
+	})
+}
+
+func ListDrawsHandler(db *sql.DB) http.HandlerFunc {
+	return httpHelpers.AuthMiddleware(func(w http.ResponseWriter, r *http.Request) {
+		data := models.TemplateData{}
+		context := templateHelpers.TemplateContext(w, r, data)
+		draws := []models.DrawSummary{}
+
+		rows, err := db.Query(`
+			SELECT r.id, r.game_type, r.draw_date, r.ball_set, r.machine,
+			       (SELECT COUNT(1) FROM prizes_thunderball p WHERE p.draw_date = r.draw_date) as prize_exists
+			FROM results_thunderball r
+			ORDER BY r.draw_date DESC
+		`)
+		if err != nil {
+			http.Error(w, "Failed to query draws", http.StatusInternalServerError)
+			return
+		}
+		defer rows.Close()
+
+		for rows.Next() {
+			var d models.DrawSummary
+			var prizeFlag int
+			if err := rows.Scan(&d.Id, &d.GameType, &d.DrawDate, &d.BallSet, &d.Machine, &prizeFlag); err != nil {
+				log.Println("⚠️ Draw scan failed:", err)
+				continue
+			}
+			d.PrizeSet = prizeFlag > 0
+			draws = append(draws, d)
+		}
+
+		context["Draws"] = draws
+
+		tmpl := templateHelpers.LoadTemplateFiles("list.html", "templates/admin/draws/list.html")
+
+		tmpl.ExecuteTemplate(w, "layout", context)
+	})
+}