using System;
using System.Collections.Generic;
using System.IO;
using Newtonsoft.Json;

namespace ShadowStream.ObjecktForJason;

public class Jason_Writer
{
    private readonly string _folderPath;

    public Jason_Writer(string folderName = "Temp Data")
    {
        _folderPath = Path.Combine(Environment.CurrentDirectory, folderName);

        if (!Directory.Exists(_folderPath))
            Directory.CreateDirectory(_folderPath);
    }

    // Save one list of locJason objects to JSON file with given name
    public async Task SaveList(string listName, List<locJason> list)
    {
        Console.WriteLine($"Saving JSON list '{listName}' with {list.Count} items.");
        foreach (var item in list)
        {
            Console.WriteLine($" - Path: {item.path}, Type: {item.type}, ImageData length: {(item.imageData?.Length ?? 0)}");
        }

        string filePath = Path.Combine(_folderPath, $"{listName}.json");
        string jsonString = JsonConvert.SerializeObject(list, Formatting.Indented);
        await File.WriteAllTextAsync(filePath, jsonString);

        Console.WriteLine($"Saved JSON to: {filePath}");
    }




    // Load one list of locJason objects from JSON file with given name
    public async Task<List<locJason>> LoadListAsync(string listName)
    {
        string filePath = Path.Combine(_folderPath, $"{listName}.json");

        if (!File.Exists(filePath))
            return new List<locJason>();

        string jsonString = await File.ReadAllTextAsync(filePath);
        return JsonConvert.DeserializeObject<List<locJason>>(jsonString) ?? new List<locJason>();
    }

    // Check if list file exists
    public bool ListExists(string listName)
    {
        string filePath = Path.Combine(_folderPath, $"{listName}.json");
        return File.Exists(filePath);
    }
    
    
    public async Task SavePlaylistListAsync(string listName, List<locJasonPlaylist> list)
    {
        Console.WriteLine($"Saving playlist list '{listName}' with {list.Count} items.");

        foreach (var item in list)
        {
            Console.WriteLine($" - Name: {item.name}, Path: {item.path}, Type: {item.type}");
        }

        string filePath = Path.Combine(_folderPath, $"{listName}.json");  // keep same naming as original
        string jsonString = JsonConvert.SerializeObject(list, Formatting.Indented);
        await File.WriteAllTextAsync(filePath, jsonString);

        Console.WriteLine($"Saved JSON to: {filePath}");
    }

    public async Task<List<locJasonPlaylist>> LoadPlaylistListAsync(string listName)
    {
        string filePath = Path.Combine(_folderPath, $"{listName}.json");

        if (!File.Exists(filePath))
        {
            Console.WriteLine($"List file '{filePath}' not found. Returning empty list.");
            return new List<locJasonPlaylist>();
        }

        string jsonString = await File.ReadAllTextAsync(filePath);
        var list = JsonConvert.DeserializeObject<List<locJasonPlaylist>>(jsonString);
        return list ?? new List<locJasonPlaylist>();
    }
    public async Task<List<string>> GetSavedPlaylistNamesAsync()
    {
        string playlistFolder = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Temp Data");

        if (!Directory.Exists(playlistFolder))
            return new List<string>();

        var files = Directory.GetFiles(playlistFolder, "*.json");
        var playlistNames = new List<string>();

        foreach (var file in files)
        {
            string name = Path.GetFileNameWithoutExtension(file);
            if (IsPlaylistFile(name)) // uses the updated method
            {
                playlistNames.Add(name);
            }
        }

        return playlistNames;
    }


    private bool IsPlaylistFile(string fileName)
    {
        // Exclude main media files and the favorites file
        var reserved = new[] { "Muvies", "Series", "Photos", "Music", "Favorit" };
        return !reserved.Contains(fileName);
    }




}