package main

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

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()

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

	err = SaveNote(note)
	if err != nil {
		Error.Printf("Failed saving note: %v", err)
		return
	}
}

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")
	return res, nil
}

func SaveNote(data NoteData) error {
	guild, err := GetOrCreateGuildByName(data.Guild)
	if err != nil {
		return fmt.Errorf("failed getting guild for %s: %v", data.Guild, err)
	}

	stinky, err := GetOrCreateStinkyByName(data.Player, guild)
	if err != nil {
		return fmt.Errorf("failed getting stinky for %s: %v", data.Player, err)
	}


	return nil
}

func GetOrCreateGuildByName(name string) (Guild, error) {
	var guild Guild
	err := db.readConn.QueryRow("select id, name from guild where name = ?", name).Scan(&guild.ID, &guild.Name)
	if err != nil {
		guild, err = CreateGuild(name)
		if err != nil {
			return guild, fmt.Errorf("failed creating guild: %v", err)
		}
	}
	return guild, nil
}

func CreateGuild(name string) (Guild, error) {
	guild := Guild{}
	res, err := db.writeConn.Exec("insert into guild (name) values (?)", name)
	if err != nil {
		return guild, fmt.Errorf("failed to insert guild: %v", err)
	}

	id, err := res.LastInsertId()
	if err != nil {
		return guild, fmt.Errorf("failed to get last insert id: %v", err)
	}

	return GetGuildById(int(id))
}

func GetGuildById(id int) (Guild, error) {
	var guild Guild
	err := db.readConn.QueryRow("select id, name from guild where id = ?", id).Scan(&guild.ID, &guild.Name)
	if err != nil {
		log.Printf("Guild not found: %v", err)
	}
	return guild, nil
}

func GetOrCreateStinkyByName(name string, guild Guild) (Stinky, error) {
	var stinky Stinky
	err := db.readConn.QueryRow("select id, name, guild from stinky where name = ?", name).Scan(&stinky.ID, &stinky.Name, &stinky.Guild.ID)
	if err != nil {
		log.Printf("Stinky not found: %v", err)
		stinky, err = CreateStinky(name, Guild{})
		if err != nil {
			return stinky, fmt.Errorf("failed creating stinky: %v", err)
		}
	}
	return stinky, nil
}

func CreateStinky(name string, guild Guild) (Stinky, error) {
	stinky := Stinky{}
	res, err := db.writeConn.Exec("insert into stinky (name, guild) values (?, ?)", name, guild.ID)
	if err != nil {
		return stinky, fmt.Errorf("failed to insert stinky: %v", err)
	}

	id, err := res.LastInsertId()
	if err != nil {
		return stinky, fmt.Errorf("failed getting last insert id for %d: %v", id, err)
	}

	return GetStinkyById(int(id))
}

func GetStinkyById(id int) (Stinky, error) {
	stinky := Stinky{}
	err := db.readConn.QueryRow("select id, name, guild from stinky where id = ?", id).Scan(&stinky.ID, &stinky.Name, &stinky.Guild.ID)
	if err != nil {
		return stinky, fmt.Errorf("failed getting stinky for %d: %v", id, err)
	}
	return stinky, nil
}