package main

import (
	"flag"
	"fmt"
	"io"
	"log"
	"os"
	"regexp"
	"strings"
	"time"
)

var Error *log.Logger
var Warning *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)
	Warning = log.New(io.MultiWriter(logFile, os.Stdout),
		fmt.Sprintf("%sWarning:%s ", "\033[0;93m", "\033[0m"),
		log.Lmicroseconds|log.Lshortfile)
}

var db DB
var gs GuildService
var ps PlayerService
var ns NoteService

func main() {
	inputFile := flag.String("if", "input", "Input file")
	flag.Parse()
	log.Printf("Input file: %s", *inputFile)

	db = DB{
		path: "data/db.db",
	}
	err := db.Open()
	if err != nil {
		Error.Printf("Failed opening database: %v", err)
		return
	}
	defer db.Close()

	gs = GuildService{db: &db}
	ps = PlayerService{db: &db}
	ns = NoteService{db: &db}

	inputData, err := os.ReadFile(*inputFile)
	if err != nil {
		Error.Printf("Failed reading input file: %v", err)
		return
	}
	log.Printf("%#v", string(inputData))

	note, err := ParseNote(string(inputData))
	if err != nil {
		Error.Printf("Failed parsing note: %v", err)
		return
	}
	log.Printf("%#v", note)
}

var associationRe = regexp.MustCompile(`r:(\w+)(?:\(([^)]+)\))?`)
func ParseNote(data string) (NoteData, error) {
	res := NoteData{}
	lines := strings.Split(data, "\n")
	note := []string{}
	for _, line := range lines {
		line = strings.TrimSpace(line)
		if line == "" {
			continue
		}
		parts := strings.Split(line, ":")
		switch parts[0] {
		case "p":
			res.Player = parts[1]
		case "d":
			var err error
			res.Date, err = time.Parse(time.DateOnly, parts[1])
			if err != nil {
				return res, fmt.Errorf("failed to parse date: %v", err)
			}
		case "g":
			res.Guild = parts[1]
		default:
			note = append(note, line)
		}
	}
	res.Note = strings.Join(note, "\n")

	matches := associationRe.FindAllStringSubmatch(res.Note, -1)
	for _, match := range matches {
		res.Associations = append(res.Associations, NoteAssociationData{
			Player: match[1],
			Note:   match[2],
		})
	}

	return res, nil
}