using Microsoft.AspNetCore.Mvc;
using PlanTempus.Application.Features.Localization.Services;

namespace PlanTempus.Application.Features.Customers.Components;

public class CustomerDetailJournalViewComponent : ViewComponent
{
    private readonly ILocalizationService _localization;

    public CustomerDetailJournalViewComponent(ILocalizationService localization)
    {
        _localization = localization;
    }

    public IViewComponentResult Invoke(string customerId)
    {
        var customer = CustomerDetailCatalog.Get(customerId);

        // Group entries by type
        var notes = customer.Journal.Where(j => j.Type == "note").ToList();
        var colorFormulas = customer.Journal.Where(j => j.Type == "colorFormula").ToList();
        var analyses = customer.Journal.Where(j => j.Type == "analysis").ToList();

        var model = new CustomerDetailJournalViewModel
        {
            AllCount = customer.Journal.Count,
            NotesCount = notes.Count,
            ColorFormulasCount = colorFormulas.Count,
            AnalysesCount = analyses.Count,
            Notes = notes.Select(MapEntry).ToList(),
            ColorFormulas = colorFormulas.Select(MapEntry).ToList(),
            Analyses = analyses.Select(MapEntry).ToList(),
            NotesTitle = "Noter",
            ColorFormulasTitle = "Farveformler",
            AnalysesTitle = "Analyser",
            AddNoteText = "+ Tilføj note",
            AddColorFormulaText = "+ Tilføj",
            AddAnalysisText = "+ Tilføj"
        };

        return View(model);
    }

    private JournalEntryViewModel MapEntry(CustomerJournalEntry entry)
    {
        // Format the date (e.g., "2025-12-09" -> "9. dec 2025")
        var formattedDate = entry.Date;
        if (DateTime.TryParse(entry.Date, out var date))
        {
            formattedDate = date.ToString("d. MMM yyyy", new System.Globalization.CultureInfo("da-DK"));
        }

        return new JournalEntryViewModel
        {
            Id = entry.Id,
            Type = entry.Type,
            Tag = entry.Tag,
            Subtags = entry.Subtags,
            Text = entry.Text,
            FormattedDate = $"{formattedDate} - Af: {entry.Author}",
            Author = entry.Author,
            TypeClass = GetTypeClass(entry.Tag)
        };
    }

    private string GetTypeClass(string tag)
    {
        return tag.ToLowerInvariant() switch
        {
            "note" => "note",
            "advarsel" => "advarsel",
            "farveformel" => "farveformel",
            "haranalyse" or "analyse" => "analyse",
            _ => "note"
        };
    }
}

public class CustomerDetailJournalViewModel
{
    public int AllCount { get; init; }
    public int NotesCount { get; init; }
    public int ColorFormulasCount { get; init; }
    public int AnalysesCount { get; init; }
    public List<JournalEntryViewModel> Notes { get; init; } = new();
    public List<JournalEntryViewModel> ColorFormulas { get; init; } = new();
    public List<JournalEntryViewModel> Analyses { get; init; } = new();
    public required string NotesTitle { get; init; }
    public required string ColorFormulasTitle { get; init; }
    public required string AnalysesTitle { get; init; }
    public required string AddNoteText { get; init; }
    public required string AddColorFormulaText { get; init; }
    public required string AddAnalysisText { get; init; }
}

public class JournalEntryViewModel
{
    public required string Id { get; init; }
    public required string Type { get; init; }
    public required string Tag { get; init; }
    public List<string> Subtags { get; init; } = new();
    public required string Text { get; init; }
    public required string FormattedDate { get; init; }
    public required string Author { get; init; }
    public required string TypeClass { get; init; }
}