package main

import (
	"bufio"
	"encoding/json"
	"fmt"
	"net"
	"os"
	"strings"

	zord_tree "g.arns.lt/zordsdavini/zord-tree"
)

type Request struct {
	Id     string
	Path   []string
	Filter []Filter
}

type Filter struct {
	Key   string
	Value string
}

func Run() {
	if _, err := os.Stat(dest); os.IsNotExist(err) {
		panic("Destination directory does not exist.")
	}

	tree, err := zord_tree.BuildTree(dest, meta)
	if err != nil {
		panic(err)
	}

	ln, err := net.Listen("tcp", ":8301")
	if err != nil {
		fmt.Println("Error starting server: " + err.Error())
	}

	for {
		conn, err := ln.Accept()
		if err != nil {
			fmt.Println("Error listening to client: " + err.Error())
			continue
		}
		message, err := bufio.NewReader(conn).ReadString('\n')
		if err != nil {
			conn.Close()
		} else {
			go sendData(conn, message, tree)
		}
	}
}

func sendData(conn net.Conn, message string, tree zord_tree.Tree) {
	message = strings.ReplaceAll(message, "\n", "")
	if message == "" {
		response, err := json.Marshal(FormatTreeSummery(tree))
		writtenBytes, err := fmt.Fprintf(conn, string(response)+"\n")
		if err != nil {
			return
		}
		fmt.Printf("sent %d bytes\n", writtenBytes)
		return
	}

	var request Request
	err := json.Unmarshal([]byte(message), &request)
	if err != nil {
		return
	}

	if request.Id != "" {
		fmt.Println("servynam faila")
		return
	}

	// einam i tree path
	fmt.Fprintf(conn, "qq\n")
	return
}