using System;
using System.Collections.Generic;
using System.Linq;
using AIImages.Models;
using AIImages.Settings;
using RimWorld;
using UnityEngine;
using Verse;

namespace AIImages
{
    /// <summary>
    /// UI для настроек мода в меню настроек RimWorld
    /// </summary>
    public static class AIImagesSettingsUI
    {
        private static Vector2 scrollPosition = Vector2.zero;
        private static string stepsBuffer;
        private static string widthBuffer;
        private static string heightBuffer;

        public static void DoSettingsWindowContents(Rect inRect, AIImagesModSettings settings)
        {
            // Инициализируем буферы при первом вызове
            if (string.IsNullOrEmpty(stepsBuffer))
            {
                stepsBuffer = settings.steps.ToString();
                widthBuffer = settings.width.ToString();
                heightBuffer = settings.height.ToString();
            }

            Listing_Standard listingStandard = new Listing_Standard();
            Rect viewRect = new Rect(0f, 0f, inRect.width - 20f, 1200f);

            Widgets.BeginScrollView(inRect, ref scrollPosition, viewRect);
            listingStandard.Begin(viewRect);

            // === API Settings ===
            listingStandard.Label(
                "AIImages.Settings.ApiSection".Translate(),
                -1f,
                "AIImages.Settings.ApiSectionTooltip".Translate()
            );
            listingStandard.GapLine();

            listingStandard.Label("AIImages.Settings.ApiEndpoint".Translate() + ":");
            settings.apiEndpoint = listingStandard.TextEntry(settings.apiEndpoint);
            listingStandard.Gap(8f);

            // Кнопка проверки подключения
            if (listingStandard.ButtonText("AIImages.Settings.TestConnection".Translate()))
            {
                _ = TestApiConnection(settings.apiEndpoint);
            }

            // Кнопка загрузки моделей
            if (listingStandard.ButtonText("AIImages.Settings.LoadModels".Translate()))
            {
                _ = LoadModelsFromApi(settings);
            }

            listingStandard.Gap(12f);

            // === Generation Settings ===
            listingStandard.Label(
                "AIImages.Settings.GenerationSection".Translate(),
                -1f,
                "AIImages.Settings.GenerationSectionTooltip".Translate()
            );
            listingStandard.GapLine();

            // Art Style
            if (
                listingStandard.ButtonTextLabeled(
                    "AIImages.Settings.ArtStyle".Translate(),
                    settings.artStyle.ToString()
                )
            )
            {
                List<FloatMenuOption> styleOptions = new List<FloatMenuOption>();
                foreach (ArtStyle style in Enum.GetValues(typeof(ArtStyle)))
                {
                    ArtStyle localStyle = style;
                    styleOptions.Add(
                        new FloatMenuOption(style.ToString(), () => settings.artStyle = localStyle)
                    );
                }
                Find.WindowStack.Add(new FloatMenu(styleOptions));
            }

            // Shot Type
            if (
                listingStandard.ButtonTextLabeled(
                    "AIImages.Settings.ShotType".Translate(),
                    settings.shotType.ToString()
                )
            )
            {
                List<FloatMenuOption> shotOptions = new List<FloatMenuOption>();
                foreach (ShotType shot in Enum.GetValues(typeof(ShotType)))
                {
                    ShotType localShot = shot;
                    shotOptions.Add(
                        new FloatMenuOption(shot.ToString(), () => settings.shotType = localShot)
                    );
                }
                Find.WindowStack.Add(new FloatMenu(shotOptions));
            }

            listingStandard.Gap(8f);

            // Steps
            listingStandard.Label("AIImages.Settings.Steps".Translate() + $": {settings.steps}");
            settings.steps = (int)listingStandard.Slider(settings.steps, 1, 150);
            listingStandard.Gap(8f);

            // CFG Scale
            listingStandard.Label(
                "AIImages.Settings.CfgScale".Translate() + $": {settings.cfgScale:F1}"
            );
            settings.cfgScale = listingStandard.Slider(settings.cfgScale, 1f, 30f);
            listingStandard.Gap(8f);

            // Width
            listingStandard.Label("AIImages.Settings.Width".Translate() + ":");
            widthBuffer = listingStandard.TextEntry(widthBuffer);
            if (int.TryParse(widthBuffer, out int width))
            {
                settings.width = Mathf.Clamp(width, 64, 2048);
            }

            // Height
            listingStandard.Label("AIImages.Settings.Height".Translate() + ":");
            heightBuffer = listingStandard.TextEntry(heightBuffer);
            if (int.TryParse(heightBuffer, out int height))
            {
                settings.height = Mathf.Clamp(height, 64, 2048);
            }

            // Common size presets
            listingStandard.Gap(4f);
            Rect presetRect = listingStandard.GetRect(30f);
            if (Widgets.ButtonText(new Rect(presetRect.x, presetRect.y, 80f, 30f), "512x512"))
            {
                settings.width = 512;
                settings.height = 512;
                widthBuffer = "512";
                heightBuffer = "512";
            }
            if (Widgets.ButtonText(new Rect(presetRect.x + 85f, presetRect.y, 80f, 30f), "512x768"))
            {
                settings.width = 512;
                settings.height = 768;
                widthBuffer = "512";
                heightBuffer = "768";
            }
            if (
                Widgets.ButtonText(new Rect(presetRect.x + 170f, presetRect.y, 80f, 30f), "768x768")
            )
            {
                settings.width = 768;
                settings.height = 768;
                widthBuffer = "768";
                heightBuffer = "768";
            }

            listingStandard.Gap(12f);

            // Sampler
            listingStandard.Label("AIImages.Settings.Sampler".Translate() + ":");
            settings.selectedSampler = listingStandard.TextEntry(settings.selectedSampler);
            listingStandard.Gap(12f);

            // === Prompts ===
            listingStandard.Label(
                "AIImages.Settings.PromptsSection".Translate(),
                -1f,
                "AIImages.Settings.PromptsSectionTooltip".Translate()
            );
            listingStandard.GapLine();

            listingStandard.Label("AIImages.Settings.BasePositivePrompt".Translate() + ":");
            settings.basePositivePrompt = listingStandard.TextEntry(settings.basePositivePrompt, 3);
            listingStandard.Gap(8f);

            listingStandard.Label("AIImages.Settings.BaseNegativePrompt".Translate() + ":");
            settings.baseNegativePrompt = listingStandard.TextEntry(settings.baseNegativePrompt, 3);
            listingStandard.Gap(12f);

            // === Options ===
            listingStandard.Label("AIImages.Settings.OptionsSection".Translate());
            listingStandard.GapLine();

            listingStandard.CheckboxLabeled(
                "AIImages.Settings.AutoLoadModels".Translate(),
                ref settings.autoLoadModels
            );
            listingStandard.CheckboxLabeled(
                "AIImages.Settings.ShowTechnicalInfo".Translate(),
                ref settings.showTechnicalInfo
            );
            listingStandard.CheckboxLabeled(
                "AIImages.Settings.SaveHistory".Translate(),
                ref settings.saveGenerationHistory
            );

            listingStandard.Gap(12f);

            // Save path
            listingStandard.Label("AIImages.Settings.SavePath".Translate() + ":");
            settings.savePath = listingStandard.TextEntry(settings.savePath);

            listingStandard.End();
            Widgets.EndScrollView();
        }

        private static async System.Threading.Tasks.Task TestApiConnection(string endpoint)
        {
            try
            {
                Log.Message($"[AI Images] Testing connection to {endpoint}...");
                bool available = await AIImagesMod.ApiService.CheckApiAvailability(endpoint);

                if (available)
                {
                    Messages.Message(
                        "AIImages.Settings.ConnectionSuccess".Translate(),
                        MessageTypeDefOf.PositiveEvent
                    );
                }
                else
                {
                    Messages.Message(
                        "AIImages.Settings.ConnectionFailed".Translate(),
                        MessageTypeDefOf.RejectInput
                    );
                }
            }
            catch (Exception ex)
            {
                Messages.Message($"Error: {ex.Message}", MessageTypeDefOf.RejectInput);
            }
        }

        private static async System.Threading.Tasks.Task LoadModelsFromApi(
            AIImagesModSettings settings
        )
        {
            try
            {
                Log.Message("[AI Images] Loading models from API...");
                var models = await AIImagesMod.ApiService.GetAvailableModels(settings.apiEndpoint);

                if (models.Count > 0)
                {
                    Messages.Message(
                        "AIImages.Settings.ModelsLoaded".Translate(models.Count),
                        MessageTypeDefOf.PositiveEvent
                    );

                    // Если модель не выбрана, выбираем первую
                    if (string.IsNullOrEmpty(settings.selectedModel) && models.Count > 0)
                    {
                        settings.selectedModel = models[0];
                    }
                }
                else
                {
                    Messages.Message(
                        "AIImages.Settings.NoModelsFound".Translate(),
                        MessageTypeDefOf.RejectInput
                    );
                }
            }
            catch (Exception ex)
            {
                Messages.Message(
                    $"Error loading models: {ex.Message}",
                    MessageTypeDefOf.RejectInput
                );
            }
        }
    }
}