@using Indotalent.ConfigBackEnd.Extensions
@using Indotalent.Features.Utilities.BookingManager
@using Indotalent.Features.Utilities.BookingManager.Cqrs
@using Indotalent.Shared.Utils
@using MudBlazor
@inject BookingManagerService BookingManagerService
@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 ? "Booking Details" : "Edit Booking")</MudText>
            <MudText Typo="Typo.body2" Style="color: #64748b;">@(ReadOnly ? "Viewing booking specification." : "Modify existing booking information.")</MudText>
        </div>
    </div>
</MudPaper>

<MudPaper Elevation="0" Outlined="true" Class="pa-8" Style="border-radius: 4px; border: 1px solid #DCEBFA;">
    @if (_isDataLoading)
    {
        <div class="d-flex justify-center pa-10"><MudProgressCircular Color="Color.Primary" Indeterminate="true" /></div>
    }
    else
    {
        <MudForm @ref="_form" Model="_model">
            <MudGrid Spacing="3">
                <MudItem xs="12">
                    <MudText Typo="Typo.subtitle2" Class="mb-1">Subject</MudText>
                    <MudTextField @bind-Value="_model.Subject"
                                  For="@(() => _model.Subject)"
                                  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"
                                   Validation="@(async (object value) => await _validator.ValidateValue()(_model, "StartTime"))"
                                   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"
                                   Validation="@(async (object value) => await _validator.ValidateValue()(_model, "StartTime"))"
                                   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"
                                   Validation="@(async (object value) => await _validator.ValidateValue()(_model, "EndTime"))"
                                   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"
                                   Validation="@(async (object value) => await _validator.ValidateValue()(_model, "EndTime"))"
                                   Variant="Variant.Outlined" Margin="Margin.Dense" />
                </MudItem>

                <MudItem xs="12">
                    <MudText Typo="Typo.subtitle2" Class="mb-1">Booking Resource</MudText>
                    <MudSelect T="string" @bind-Value="_model.BookingResourceId"
                               For="@(() => _model.BookingResourceId)"
                               Validation="@(_validator.ValidateValue())"
                               ReadOnly="ReadOnly" Variant="Variant.Outlined" Margin="Margin.Dense" FullWidth="true" Dense="true">
                        @foreach (var item in _lookupData.Resources)
                        {
                            <MudSelectItem Value="@item.Id">@item.Name</MudSelectItem>
                        }
                    </MudSelect>
                </MudItem>

                <MudItem xs="12">
                    <MudText Typo="Typo.subtitle2" Class="mb-1">Status</MudText>
                    <MudSelect T="Indotalent.Data.Enums.BookingStatus" @bind-Value="_model.Status"
                               For="@(() => _model.Status)"
                               ReadOnly="ReadOnly" Variant="Variant.Outlined" Margin="Margin.Dense" FullWidth="true" Dense="true">
                        @foreach (var item in _lookupData.Statuses)
                        {
                            <MudSelectItem Value="@((Indotalent.Data.Enums.BookingStatus)item.Value)">@item.Name</MudSelectItem>
                        }
                    </MudSelect>
                </MudItem>

                <MudItem xs="12">
                    <MudText Typo="Typo.subtitle2" Class="mb-1">Description</MudText>
                    <MudTextField @bind-Value="_model.Description" ReadOnly="ReadOnly" Variant="Variant.Outlined" Margin="Margin.Dense" Lines="3" FullWidth="true" />
                </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: 1px solid #e0e0e0; border-radius: 4px; text-transform: none; font-weight: 700;">@(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 UpdateBookingRequest 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 UpdateBookingValidator _validator = new();
    private UpdateBookingRequest _model = new();
    private LookupBookingDataResponse _lookupData = new();
    private bool _processing = false;
    private bool _isDataLoading = true;

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

    protected override async Task OnInitializedAsync()
    {
        _isDataLoading = true;
        try
        {
            var response = await BookingManagerService.GetLookupDataAsync();
            if (response != null && response.IsSuccess)
            {
                _lookupData = response.Value!;
            }

            _model = new UpdateBookingRequest
            {
                Id = Data.Id,
                Subject = Data.Subject,
                StartTime = Data.StartTime,
                EndTime = Data.EndTime,
                StartTimezone = Data.StartTimezone,
                EndTimezone = Data.EndTimezone,
                Location = Data.Location,
                Description = Data.Description,
                IsAllDay = Data.IsAllDay,
                IsReadOnly = Data.IsReadOnly,
                IsBlock = Data.IsBlock,
                RecurrenceRule = Data.RecurrenceRule,
                Status = Data.Status,
                BookingResourceId = Data.BookingResourceId,
                CreatedAt = Data.CreatedAt,
                CreatedBy = Data.CreatedBy,
                UpdatedAt = Data.UpdatedAt,
                UpdatedBy = Data.UpdatedBy
            };

            if (_model.StartTime.HasValue)
            {
                _startDate = _model.StartTime.Value.Date;
                _startTime = _model.StartTime.Value.TimeOfDay;
            }

            if (_model.EndTime.HasValue)
            {
                _endDate = _model.EndTime.Value.Date;
                _endTime = _model.EndTime.Value.TimeOfDay;
            }
        }
        finally { _isDataLoading = false; }
    }

    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 BookingManagerService.UpdateBookingAsync(_model);
            await Task.Delay(500);
            if (response != null && response.IsSuccess)
            {
                Snackbar.Add("Booking updated successfully", Severity.Success);
                await OnSuccess.InvokeAsync();
            }
        }
        catch (Exception ex)
        {
            Snackbar.Add($"Error: {ex.Message}", Severity.Error);
        }
        finally { _processing = false; }
    }
}