package main

import (
	"embed"
	"flag"
	"fmt"
	"io"
	"log"
	"os"
	_ "embed"

	"github.com/wailsapp/wails/v2"
	"github.com/wailsapp/wails/v2/pkg/options"
	"github.com/wailsapp/wails/v2/pkg/options/assetserver"
)

//go:embed all:frontend/dist
var assets embed.FS

var Error *log.Logger

func init() {
	log.SetFlags(log.Lmicroseconds | log.Lshortfile)
	logFile, err := os.Create("main.log")
	if err != nil {
		log.Printf("Error creating log file: %v", err)
		os.Exit(1)
	}
	logger := io.MultiWriter(os.Stdout, logFile)
	log.SetOutput(logger)

	Error = log.New(io.MultiWriter(logFile, os.Stderr, os.Stdout),
		fmt.Sprintf("%sERROR:%s ", "\033[0;101m", "\033[0m"),
		log.Lmicroseconds|log.Lshortfile)
}

var (
	settingsService *SettingsService
	foodService     *FoodService
	weightService   *WeightService
)

//go:embed food.ddl
var foodDDL string

// TODO: Embed food.ddl and create DB if no exists
// TODO: Add averages to graphs (ie. R2) https://stackoverflow.com/questions/60622195/how-to-draw-a-linear-regression-line-in-chart-js
func main() {
	dbpath := flag.String("db", "food.db", "Path to the database file")
	flag.Parse()

	db := DB{path: *dbpath}
	err := db.Open()
	if err != nil {
		Error.Printf("%++v", err)
		os.Exit(1)
	}
	defer db.Close()
	err = db.Init(foodDDL)
	if err != nil {
		Error.Printf("Error initializing database: %++v", err)
		os.Exit(1)
	}

	settingsService = &SettingsService{db: &db}
	err = settingsService.LoadSettings()
	if err != nil {
		Error.Printf("%++v", err)
		os.Exit(1)
	}
	log.Printf("Loaded settings as: %++v", Settings)

	foodService = &FoodService{db: &db}
	weightService = &WeightService{db: &db}

	// Create an instance of the app structure
	app := NewApp()

	// Create application with options
	err = wails.Run(&options.App{
		Title:  "calorie-counter",
		Width:  1920,
		Height: 1080,
		AssetServer: &assetserver.Options{
			Assets: assets,
		},
		BackgroundColour: &options.RGBA{R: 27, G: 38, B: 54, A: 1},
		OnStartup:        app.startup,
		Bind: []interface{}{
			app,
		},
	})

	if err != nil {
		println("Error:", err.Error())
	}
}