using Microsoft.AspNetCore.Components;
using Microsoft.JSInterop;

namespace ApplianceRepair.Components.Pages.admin
{
    public partial class Admin(HomePageReader homePageReader, ContentCardReader contentCardReader, BusinessConfigReader businessConfigReader, RepairRequestReader repairRequestReader, RepairRequestMediaReader repairRequestMediaReader) : ComponentBase
    {
        public HomePageModel? HomePageModel;
        public BusinessInfoModel? BusinessInfo;
        public List<RepairRequestModel>? RepairRequests;

        public List<RepairRequestMediaRecord>? SelectedRequestMedia;
        public int SelectedRequestMediaImageIndex = 0;

        private enum AdminTab { Home, Requests, BusinessInfo }
        private AdminTab CurrentTab = AdminTab.Home;

        protected override async Task OnInitializedAsync()
        {
            var businessConfig = await businessConfigReader.ReadLatestRecord() ?? Defaults.DefaultBusinessConfig;
            var latestHomeRecord = await homePageReader.ReadLatestRecord() ?? Defaults.DefaultHomePageContent;
            var servicesList = await contentCardReader.ReadAllByPageAndGroup(HomePageModel.PageName, nameof(HomePageModel.ContentCardTypes.Services)) ?? [];
            var trustList = await contentCardReader.ReadAllByPageAndGroup(HomePageModel.PageName, nameof(HomePageModel.ContentCardTypes.Trust)) ?? [];

            BusinessInfo = new BusinessInfoModel(businessConfig);
            HomePageModel = new HomePageModel(latestHomeRecord, businessConfig, servicesList, trustList);

            RepairRequests = [];
            (await repairRequestReader.ReadAll()).ForEach((record) =>
            {
                RepairRequests.Add(new RepairRequestModel(record));
            });
        }

        private async void RefreshContentCards()
        {
            if (HomePageModel == null)
            {
                return;
            }

            var servicesList = await contentCardReader.ReadAllByPageAndGroup(HomePageModel.PageName, nameof(HomePageModel.ContentCardTypes.Services)) ?? [];
            var trustList = await contentCardReader.ReadAllByPageAndGroup(HomePageModel.PageName, nameof(HomePageModel.ContentCardTypes.Trust)) ?? [];

            HomePageModel.ServicesCards.Clear();
            foreach (var card in servicesList)
            {
                HomePageModel.ServicesCards.Add(new ContentCardModel(card));
            }

            HomePageModel.TrustCards.Clear();
            foreach (var card in trustList)
            {
                HomePageModel.TrustCards.Add(new ContentCardModel(card));
            }
        }

        private async void RevertHomePageModel()
        {
            var businessConfig = await businessConfigReader.ReadLatestRecord() ?? Defaults.DefaultBusinessConfig;
            var latestHomeRecord = await homePageReader.ReadLatestRecord() ?? Defaults.DefaultHomePageContent;
            var servicesList = await contentCardReader.ReadAllByPageAndGroup(HomePageModel.PageName, nameof(HomePageModel.ContentCardTypes.Services)) ?? [];
            var trustList = await contentCardReader.ReadAllByPageAndGroup(HomePageModel.PageName, nameof(HomePageModel.ContentCardTypes.Trust)) ?? [];

            BusinessInfo = new BusinessInfoModel(businessConfig);
            HomePageModel = new HomePageModel(latestHomeRecord, businessConfig, servicesList, trustList);
        }

        private async void RevertBusinessInfo()
        {
            var businessConfig = await businessConfigReader.ReadLatestRecord() ?? Defaults.DefaultBusinessConfig;
            BusinessInfo = new BusinessInfoModel(businessConfig);
        }

        private async void SaveHomePageModel()
        {
            HomePageModel.UpdatedAt = DateTime.Now;
            await homePageReader.UpdateRecord(HomePageModel);

            foreach (var card in HomePageModel.ServicesCards)
            {
                card.UpdatedAt = DateTime.Now;
                await contentCardReader.UpdateRecord(card); 
            }

            foreach (var card in HomePageModel.TrustCards)
            {
                card.UpdatedAt = DateTime.Now;
                await contentCardReader.UpdateRecord(card);
            }
        }

        private async void SaveBusinessInfo()
        {
            BusinessInfo.UpdatedAt = DateTime.Now;
            await businessConfigReader.UpdateRecord(BusinessInfo);
        }

        private async Task DeleteContentCard(ContentCardModel card)
        {
            await contentCardReader.DeleteRecord(card);
            RefreshContentCards();
        }

        private void AddServiceCard()
        {
            HomePageModel?.ServicesCards.Add(new ContentCardModel() { 
                CreatedAt = DateTime.Now, 
                UpdatedAt = DateTime.Now, 
                BelongsToPage = HomePageModel.PageName, 
                Group = HomePageModel.ContentCardTypes.Services.ToString(), 
                Header = "Service Name", 
                Text = "Short Description" 
            });
        }

        private async void AddTrustCard()
        {
            HomePageModel?.TrustCards.Add(new ContentCardModel()
            {
                CreatedAt = DateTime.Now,
                UpdatedAt = DateTime.Now,
                BelongsToPage = HomePageModel.PageName,
                Group = HomePageModel.ContentCardTypes.Trust.ToString(),
                Header = "Header",
                Text = "Short Description"
            });
        }
           
        private async Task ViewRequestImages(RepairRequestModel request)
        {
            if (!string.IsNullOrEmpty(request.RequestNumber))
            {
                SelectedRequestMedia = await repairRequestMediaReader.ReadAllByRequestNumber(request.RequestNumber);
                SelectedRequestMediaImageIndex = 0;
                await JS.InvokeVoidAsync("eval", $"document.getElementById('imageViewerModal').showModal()");
            }
        }

        private async Task CloseImageViewer()
        {
            await JS.InvokeVoidAsync("eval", $"document.getElementById('imageViewerModal').close()");
            SelectedRequestMedia = [];
        }

        private async Task ImageViewerModal_PrevImage()
        {
            if (SelectedRequestMedia == null) return;

            SelectedRequestMediaImageIndex++;
            if (SelectedRequestMediaImageIndex >= SelectedRequestMedia.Count())
            {
                SelectedRequestMediaImageIndex = 0;
            }
        }

        private async Task ImageViewerModal_NextImage()
        {
            if (SelectedRequestMedia == null) return;
            SelectedRequestMediaImageIndex--;
            if (SelectedRequestMediaImageIndex < 0)
            {
                SelectedRequestMediaImageIndex = SelectedRequestMedia.Count() - 1;
            }
        }

        private string GetWebPath(string fullPath = "")
        {
            if (string.IsNullOrEmpty(fullPath)) return "";

            var marker = "wwwroot";
            var index = fullPath.IndexOf(marker);

            if (index != -1)
            {
                // Returns "/uploads/filename.jpg"
                return fullPath.Substring(index + marker.Length).Replace('\\', '/');
            }

            return fullPath;
        }
    }
}