using System.Text;
using System.Text.Json;
using SilverLabs.Website.Models;

namespace SilverLabs.Website.Services;

public class DeveloperApplicationService
{
    private readonly HttpClient _httpClient;
    private readonly ILogger<DeveloperApplicationService> _logger;

    public DeveloperApplicationService(HttpClient httpClient, ILogger<DeveloperApplicationService> logger)
    {
        _httpClient = httpClient;
        _logger = logger;
    }

    public async Task<(bool Success, string Message)> SubmitApplicationAsync(DeveloperApplication application)
    {
        try
        {
            var ticketBody = FormatTicketBody(application);

            var payload = new
            {
                Subject = $"[Developer Program] {application.Role} Application - {application.FullName}",
                Description = ticketBody,
                Priority = "Medium",
                Category = "Developer Program"
            };

            var json = JsonSerializer.Serialize(payload);
            var content = new StringContent(json, Encoding.UTF8, "application/json");

            var response = await _httpClient.PostAsync("/api/tickets", content);

            if (response.IsSuccessStatusCode)
            {
                _logger.LogInformation("Developer application submitted for {Email} as {Role}", application.Email, application.Role);
                return (true, "Application submitted successfully! We'll review it and get back to you soon.");
            }

            var errorBody = await response.Content.ReadAsStringAsync();
            _logger.LogError("Failed to create ticket: {StatusCode} - {Body}", response.StatusCode, errorBody);
            return (false, "Something went wrong submitting your application. Please try again later.");
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Error submitting developer application for {Email}", application.Email);
            return (false, "Unable to connect to the application service. Please try again later.");
        }
    }

    private static string FormatTicketBody(DeveloperApplication app)
    {
        var sb = new StringBuilder();
        sb.AppendLine("## Developer Program Application");
        sb.AppendLine();
        sb.AppendLine($"**Role:** {app.Role}");
        sb.AppendLine($"**Full Name:** {app.FullName}");
        sb.AppendLine($"**Email:** {app.Email}");
        sb.AppendLine($"**Desired Username:** {app.DesiredUsername}");
        sb.AppendLine($"**Timezone:** {app.Timezone}");
        sb.AppendLine();
        sb.AppendLine($"**Platforms:** {string.Join(", ", app.Platforms)}");
        sb.AppendLine();

        if (app.Role == ApplicationRole.Developer && !string.IsNullOrWhiteSpace(app.Skills))
        {
            sb.AppendLine("**Skills & Experience:**");
            sb.AppendLine(app.Skills);
            sb.AppendLine();
        }

        sb.AppendLine("**Motivation:**");
        sb.AppendLine(app.Motivation);

        return sb.ToString();
    }
}