@using Indotalent.ConfigBackEnd.Extensions
@using Indotalent.Features.Utilities.Todo
@using Indotalent.Features.Utilities.Todo.Cqrs
@using Indotalent.Features.Utilities.Todo.Components
@using Indotalent.Shared.Utils
@using MudBlazor
@inject TodoService TodoService
@inject ISnackbar Snackbar

<MudPaper Elevation="0" Square="true" Class="pa-6 mb-3 d-flex align-center justify-space-between" Style="border: 1px solid #DCEBFA;">
    <div class="d-flex align-center gap-4">
        <MudIconButton Icon="@Icons.Material.Filled.ArrowBack" OnClick="() => OnCancel.InvokeAsync()" />
        <div>
            <MudText Typo="Typo.h5" Style="font-weight: 900; color: #1a1a1a;">@(ReadOnly ? "Todo Details" : "Edit Todo")</MudText>
            <MudText Typo="Typo.body2" Style="color: #64748b;">@(ReadOnly ? "Viewing todo specification." : "Modify existing todo information.")</MudText>
        </div>
    </div>
</MudPaper>

<MudPaper Elevation="0" Outlined="true" Class="pa-8" Style="border-radius: 4px; border: 1px solid #DCEBFA;">
    <MudForm @ref="_form" Model="_model">
        <MudGrid Spacing="3">
            <MudItem xs="12">
                <MudText Typo="Typo.subtitle2" Class="mb-1">Todo Name</MudText>
                <MudTextField @bind-Value="_model.Name"
                              For="@(() => _model.Name)"
                              Validation="@(_validator.ValidateValue())"
                              ReadOnly="ReadOnly"
                              Variant="Variant.Outlined" Margin="Margin.Dense" FullWidth="true" />
            </MudItem>

            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-1">Start Date</MudText>
                <MudDatePicker @bind-Date="_startDate" ReadOnly="ReadOnly"
                               Variant="Variant.Outlined" Margin="Margin.Dense" />
            </MudItem>

            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-1">Start Time</MudText>
                <MudTimePicker @bind-Time="_startTime" ReadOnly="ReadOnly"
                               Variant="Variant.Outlined" Margin="Margin.Dense" />
            </MudItem>

            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-1">End Date</MudText>
                <MudDatePicker @bind-Date="_endDate" ReadOnly="ReadOnly"
                               Variant="Variant.Outlined" Margin="Margin.Dense" />
            </MudItem>

            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-1">End Time</MudText>
                <MudTimePicker @bind-Time="_endTime" ReadOnly="ReadOnly"
                               Variant="Variant.Outlined" Margin="Margin.Dense" />
            </MudItem>

            <MudItem xs="12">
                <MudCheckBox @bind-Value="_model.IsCompleted" Label="Completed" Color="Color.Primary" ReadOnly="ReadOnly" />
            </MudItem>

            <MudItem xs="12">
                <MudText Typo="Typo.subtitle2" Class="mb-1">Description</MudText>
                <MudTextField @bind-Value="_model.Description"
                              For="@(() => _model.Description)"
                              ReadOnly="ReadOnly"
                              Variant="Variant.Outlined" Margin="Margin.Dense" Lines="3" FullWidth="true" />
            </MudItem>

            <MudItem xs="12" Class="mt-6">
                <_TodoItemDataTable Items="_items" TodoId="@(_model.Id ?? string.Empty)" ReadOnly="ReadOnly" OnChanged="RefreshItems" />
            </MudItem>

            <MudItem xs="12" Class="mt-4">
                <MudText Typo="Typo.button" Color="Color.Primary" Style="font-weight: 800;">Audit History</MudText>
                <MudDivider Class="mt-2 mb-4" />
            </MudItem>

            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2">Created At</MudText>
                <MudText Typo="Typo.body2" Style="color: #1a1a1a; font-weight: 600;">@DateTimeExtensions.ToString(_model.CreatedAt)</MudText>
            </MudItem>
            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2">Created By</MudText>
                <MudText Typo="Typo.body2" Style="color: #1a1a1a; font-weight: 600;">@(!string.IsNullOrEmpty(_model.CreatedBy) ? _model.CreatedBy : "System")</MudText>
            </MudItem>
            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2">Last Updated At</MudText>
                <MudText Typo="Typo.body2" Style="color: #1a1a1a; font-weight: 600;">@DateTimeExtensions.ToString(_model.UpdatedAt)</MudText>
            </MudItem>
            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2">Last Updated By</MudText>
                <MudText Typo="Typo.body2" Style="color: #1a1a1a; font-weight: 600;">@(!string.IsNullOrEmpty(_model.UpdatedBy) ? _model.UpdatedBy : "System")</MudText>
            </MudItem>
        </MudGrid>

        <div class="d-flex justify-end gap-2 mt-10">
            <MudButton OnClick="() => OnCancel.InvokeAsync()"
                       Variant="Variant.Outlined"
                       Disabled="_processing"
                       Style="border-radius: 4px; text-transform: none; font-weight: 700; border: 1px solid #e0e0e0;">
                @(ReadOnly ? "Back to List" : "Cancel")
            </MudButton>
            @if (!ReadOnly)
            {
                <MudButton Color="Color.Primary"
                           Variant="Variant.Filled"
                           OnClick="Submit"
                           Disabled="_processing"
                           Style="border-radius: 4px; text-transform: none; font-weight: 700;">
                    @if (_processing)
                    {
                        <MudProgressCircular Class="ms-n1" Size="Size.Small" Indeterminate="true" />
                        <MudText Class="ms-2">Updating...</MudText>
                    }
                    else
                    {
                        <MudText>Save Changes</MudText>
                    }
                </MudButton>
            }
        </div>
    </MudForm>
</MudPaper>

@code {
    [Parameter] public UpdateTodoRequest Data { get; set; } = new();
    [Parameter] public bool ReadOnly { get; set; } = false;
    [Parameter] public EventCallback OnCancel { get; set; }
    [Parameter] public EventCallback OnSuccess { get; set; }

    private MudForm _form = default!;
    private UpdateTodoValidator _validator = new();
    private UpdateTodoRequest _model = new();
    private List<TodoItemResponse> _items = new();
    private bool _processing = false;

    private DateTime? _startDate;
    private TimeSpan? _startTime;
    private DateTime? _endDate;
    private TimeSpan? _endTime;

    protected override async Task OnInitializedAsync()
    {
        _model = new UpdateTodoRequest
        {
            Id = Data.Id,
            Name = Data.Name,
            Description = Data.Description,
            StartTime = Data.StartTime,
            EndTime = Data.EndTime,
            IsCompleted = Data.IsCompleted,
            CreatedAt = Data.CreatedAt,
            CreatedBy = Data.CreatedBy,
            UpdatedAt = Data.UpdatedAt,
            UpdatedBy = Data.UpdatedBy
        };

        _startDate = _model.StartTime?.Date;
        _startTime = _model.StartTime?.TimeOfDay;
        _endDate = _model.EndTime?.Date;
        _endTime = _model.EndTime?.TimeOfDay;

        await RefreshItems();
    }

    private async Task RefreshItems()
    {
        var response = await TodoService.GetTodoByIdAsync(_model.Id!);
        if (response != null && response.IsSuccess)
        {
            _items = response.Value?.TodoItems ?? new();
        }
    }

    private async Task Submit()
    {
        if (ReadOnly) return;

        if (_startDate.HasValue && _startTime.HasValue)
            _model.StartTime = _startDate.Value.Date.Add(_startTime.Value);
        
        if (_endDate.HasValue && _endTime.HasValue)
            _model.EndTime = _endDate.Value.Date.Add(_endTime.Value);

        await _form.Validate();
        if (!_form.IsValid) return;

        _processing = true;
        try
        {
            var response = await TodoService.UpdateTodoAsync(_model);
            await Task.Delay(500);

            if (response != null && response.IsSuccess)
            {
                Snackbar.Add("Todo updated successfully", Severity.Success);
                await OnSuccess.InvokeAsync();
            }
        }
        catch (Exception ex)
        {
            Snackbar.Add($"Error: {ex.Message}", Severity.Error);
        }
        finally
        {
            _processing = false;
        }
    }
}