package main

import (
	"context"
	"database/sql"
	"log"
	"log/slog"
	"net/http"
	"os"

	"gitea.starryskymeow.cn/B309/datamarket/internal/config"
	"gitea.starryskymeow.cn/B309/datamarket/internal/repository"
	"gitea.starryskymeow.cn/B309/datamarket/internal/router"
	"gitea.starryskymeow.cn/B309/datamarket/internal/service"
	"github.com/golang-migrate/migrate/v4"
	"github.com/golang-migrate/migrate/v4/database"
	"github.com/golang-migrate/migrate/v4/database/postgres"
	_ "github.com/golang-migrate/migrate/v4/source/file"
	"github.com/jackc/pgx/v5/pgxpool"
	"github.com/jackc/pgx/v5/stdlib"
)

func main() {
	// db connect
	ctx := context.Background()

	pool, err := pgxpool.New(ctx, os.Getenv("DATABASE_URL"))
	if err != nil {
		log.Fatal(err)
	}
	defer pool.Close()
	if err := pool.Ping(ctx); err != nil {
		log.Fatal(err)
	}

	db := stdlib.OpenDBFromPool(pool)
	defer func(db *sql.DB) {
		err := db.Close()
		if err != nil {
			log.Fatal(err)
		}
	}(db)
	driver, err := postgres.WithInstance(db, &postgres.Config{})
	if err != nil {
		panic(err)
	}
	defer func(driver database.Driver) {
		err := driver.Close()
		if err != nil {
			log.Fatal(err)
		}
	}(driver)
	m, err := migrate.NewWithDatabaseInstance(
		"file://db/migration",
		"postgres", driver)
	if err != nil {
		log.Fatal(err)
	}
	if err := m.Up(); err != nil && err.Error() != "no change" {
		log.Fatal(err)
	}

	queries := repository.New(pool)
	cfg, err := config.New(queries)
	if err != nil {
		slog.Error("Error loading config")
		log.Fatal(err)
	}
	appService := service.New(queries, cfg)
	r := router.New(appService, cfg)

	addr := os.Getenv("SERVER_ADDR")

	if addr == "" {
		addr = ":8080"
	}

	err = http.ListenAndServe(addr, r)
	if err != nil {
		log.Fatal(err)
	}
}