using AiQ_GUI;
using System;
using System.Net.Http;
using System.Net.Http.Json;
using System.Security.Cryptography;
using System.Text;
using System.Text.Json;
using System.Threading.Tasks;

public static class MobilePreTest
{
    public static async Task CheckFirmwareAsync()
    {
        const string cameraIp = "192.168.0.112";

        using HttpClient client = new HttpClient
        {
            BaseAddress = new Uri($"http://{cameraIp}")
        };

        try
        {
            // Login and get JWT token
            string token = await LoginAsync(client, "ADMIN", "1234");

            // Attach JWT to all requests
            client.DefaultRequestHeaders.Authorization =
                new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", token);

            // Request firmware information
            HttpResponseMessage response =
                await client.GetAsync("/app/v1/system/firmware");

            string body = await response.Content.ReadAsStringAsync();

            MainForm.Instance.AddToActionsList(
                $"Firmware check response: {(int)response.StatusCode} {response.StatusCode} | {body}",
                Level.LOG);

            response.EnsureSuccessStatusCode();

            JsonElement json =
                JsonSerializer.Deserialize<JsonElement>(body);

            string version =
                json.GetProperty("version").GetString();

            MainForm.Instance.AddToActionsList(
                $"Current firmware version: {version}",
                Level.Success);
        }
        catch (Exception ex)
        {
            MainForm.Instance.AddToActionsList(
                $"Firmware check failed: {ex.Message}",
                Level.ERROR);
        }
    }

    private static async Task<string> LoginAsync(HttpClient client, string user, string password)
    {
        var payload = new
        {
            userId = user,
            userPassword = Sha256(password)
        };

        HttpResponseMessage response =
            await client.PostAsJsonAsync("/app/v1/login", payload);

        response.EnsureSuccessStatusCode();

        JsonElement json =
            await response.Content.ReadFromJsonAsync<JsonElement>();

        return json.GetProperty("token").GetString();
    }

    private static string Sha256(string input)
    {
        using SHA256 sha = SHA256.Create();
        byte[] bytes = sha.ComputeHash(Encoding.UTF8.GetBytes(input));
        return BitConverter.ToString(bytes).Replace("-", "").ToLower();
    }
}