using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Controls;
using System.Diagnostics;
using System.IO;

namespace DashCaddy.Desktop;

public sealed partial class SettingsDialog : ContentDialog
{
    public SettingsDialog()
    {
        InitializeComponent();
        LoadSettings();
    }

    private void LoadSettings()
    {
        var configPath = Path.Combine(
            Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
            "DashCaddy", "config.yaml");
        
        if (File.Exists(configPath))
        {
            var lines = File.ReadAllLines(configPath);
            var dict = new Dictionary<string, string>();
            foreach (var line in lines)
            {
                if (line.Contains(':'))
                {
                    var parts = line.Split(':', 2);
                    if (parts.Length == 2)
                        dict[parts[0].Trim()] = parts[1].Trim();
                }
            }

            if (dict.TryGetValue("domain", out var domain)) DomainBox.Text = domain;
            if (dict.TryGetValue("email", out var email)) EmailBox.Text = email;
            if (dict.TryGetValue("docker_data", out var dockerData)) DockerDataBox.Text = dockerData;
            if (dict.TryGetValue("dns_provider", out var dnsProvider))
            {
                foreach (ComboBoxItem item in DnsProviderCombo.Items)
                {
                    if (item.Tag?.ToString() == dnsProvider)
                    {
                        DnsProviderCombo.SelectedItem = item;
                        break;
                    }
                }
            }

            // DNS provider specific settings
            if (dict.TryGetValue("technitium_url", out var techUrl)) TechnitiumUrl.Text = techUrl;
            if (dict.TryGetValue("technitium_api_key", out var techKey)) TechnitiumApiKey.Text = techKey;
            if (dict.TryGetValue("technitium_zone", out var techZone)) TechnitiumZone.Text = techZone;
            if (dict.TryGetValue("coredns_api_url", out var coreUrl)) CoreDnsApiUrl.Text = coreUrl;
            if (dict.TryGetValue("coredns_zone", out var coreZone)) CoreDnsZone.Text = coreZone;
            if (dict.TryGetValue("cloudflare_api_token", out var cfToken)) CloudflareApiToken.Text = cfToken;
            if (dict.TryGetValue("cloudflare_zone_id", out var cfZone)) CloudflareZoneId.Text = cfZone;
            if (dict.TryGetValue("aws_access_key", out var awsKey)) AwsAccessKey.Text = awsKey;
            if (dict.TryGetValue("aws_secret_key", out var awsSecret)) AwsSecretKey.Text = awsSecret;
            if (dict.TryGetValue("aws_region", out var awsRegion)) AwsRegion.Text = awsRegion;
            if (dict.TryGetValue("route53_zone_id", out var r53Zone)) Route53ZoneId.Text = r53Zone;
            if (dict.TryGetValue("custom_dns_url", out var customUrl)) CustomDnsUrl.Text = customUrl;
            if (dict.TryGetValue("custom_dns_key", out var customKey)) CustomDnsKey.Text = customKey;

            if (dict.TryGetValue("auto_start", out var autoStart) && bool.TryParse(autoStart, out var asBool))
                AutoStartCheck.IsChecked = asBool;
            if (dict.TryGetValue("auto_update", out var autoUpdate) && bool.TryParse(autoUpdate, out var auBool))
                AutoUpdateCheck.IsChecked = auBool;
        }
    }

    private void DnsProvider_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        if (DnsProviderCombo.SelectedItem is ComboBoxItem item)
        {
            var provider = item.Tag?.ToString();
            
            TechnitiumPanel.Visibility = provider == "Technitium" ? Visibility.Visible : Visibility.Collapsed;
            CoreDnsPanel.Visibility = provider == "CoreDNS" ? Visibility.Visible : Visibility.Collapsed;
            CloudflarePanel.Visibility = provider == "Cloudflare" ? Visibility.Visible : Visibility.Collapsed;
            Route53Panel.Visibility = provider == "Route53" ? Visibility.Visible : Visibility.Collapsed;
            CustomPanel.Visibility = provider == "Custom" ? Visibility.Visible : Visibility.Collapsed;
        }
    }

    private void ContentDialog_PrimaryButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
    {
        var configDir = Path.Combine(
            Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
            "DashCaddy");
        Directory.CreateDirectory(configDir);
        
        var configPath = Path.Combine(configDir, "config.yaml");
        
        var dnsProvider = (DnsProviderCombo.SelectedItem as ComboBoxItem)?.Tag?.ToString() ?? "Technitium";
        
        var config = $@"domain: {DomainBox.Text}
email: {EmailBox.Text}
docker_data: {DockerDataBox.Text}
dns_provider: {dnsProvider}
technitium_url: {TechnitiumUrl.Text}
technitium_api_key: {TechnitiumApiKey.Text}
technitium_zone: {TechnitiumZone.Text}
coredns_api_url: {CoreDnsApiUrl.Text}
coredns_zone: {CoreDnsZone.Text}
cloudflare_api_token: {CloudflareApiToken.Text}
cloudflare_zone_id: {CloudflareZoneId.Text}
aws_access_key: {AwsAccessKey.Text}
aws_secret_key: {AwsSecretKey.Text}
aws_region: {AwsRegion.Text}
route53_zone_id: {Route53ZoneId.Text}
custom_dns_url: {CustomDnsUrl.Text}
custom_dns_key: {CustomDnsKey.Text}
auto_start: {AutoStartCheck.IsChecked}
auto_update: {AutoUpdateCheck.IsChecked}
";
        File.WriteAllText(configPath, config);
    }

    private void OpenConfigFolder_Click(object sender, RoutedEventArgs e)
    {
        var configDir = Path.Combine(
            Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
            "DashCaddy");
        Directory.CreateDirectory(configDir);
        Process.Start(new ProcessStartInfo("explorer.exe", configDir) { UseShellExecute = true });
    }

    private void ViewLogs_Click(object sender, RoutedEventArgs e)
    {
        var logDir = Path.Combine(
            Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
            "DashCaddy", "logs");
        Directory.CreateDirectory(logDir);
        Process.Start(new ProcessStartInfo("explorer.exe", logDir) { UseShellExecute = true });
    }

    private async void ResetData_Click(object sender, RoutedEventArgs e)
    {
        var confirm = new ContentDialog
        {
            Title = "Reset All Data",
            Content = "This will delete ALL DashCaddy data including services, configs, and Docker volumes. This cannot be undone.",
            PrimaryButtonText = "Delete Everything",
            CloseButtonText = "Cancel",
            DefaultButton = ContentDialogButton.Close,
            XamlRoot = this.XamlRoot
        };
        var result = await confirm.ShowAsync();
        if (result == ContentDialogResult.Primary)
        {
            // TODO: Implement full reset
        }
    }
}