@using Indotalent.ConfigBackEnd.Extensions
@using Indotalent.Features.Payroll.Grade
@using Indotalent.Features.Payroll.Grade.Cqrs
@using Indotalent.Shared.Utils
@using MudBlazor
@inject GradeService GradeService
@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 ? "Grade Details" : "Edit Grade")</MudText>
            <MudText Typo="Typo.body2" Style="color: #64748b;">@(ReadOnly ? "Viewing salary structure and eligibility." : "Modify existing pay scale and compensation rules.")</MudText>
        </div>
    </div>
</MudPaper>

<MudPaper Elevation="0" Outlined="true" Class="pa-8" Style="border-radius: 0px; border: 1px solid #DCEBFA;">
    <MudForm @ref="_form" Model="_model">
        <MudGrid Spacing="3">
            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-1">Grade Code</MudText>
                <MudTextField @bind-Value="_model.Code"
                              For="@(() => _model.Code)"
                              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">Grade 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">Salary From (Monthly)</MudText>
                <MudNumericField @bind-Value="_model.SalaryFrom"
                                 For="@(() => _model.SalaryFrom)"
                                 HideSpinButtons="true"
                                 ReadOnly="ReadOnly"
                                 Variant="Variant.Outlined" Margin="Margin.Dense" FullWidth="true" />
            </MudItem>
            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-1">Salary To (Monthly)</MudText>
                <MudNumericField @bind-Value="_model.SalaryTo"
                                 For="@(() => _model.SalaryTo)"
                                 HideSpinButtons="true"
                                 ReadOnly="ReadOnly"
                                 Variant="Variant.Outlined" Margin="Margin.Dense" FullWidth="true" />
            </MudItem>
            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-1">Overtime Eligibility</MudText>
                <div style="height: 40px; display: flex; align-items: center;">
                    <MudCheckBox @bind-Value="_model.IsOverTimeEligible" Label="Eligible for Overtime Pay" Color="Color.Primary" Dense="true" Disabled="ReadOnly" />
                </div>
            </MudItem>
            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-1">Status</MudText>
                <MudSelect @bind-Value="_model.Status"
                           For="@(() => _model.Status)"
                           ReadOnly="ReadOnly"
                           Variant="Variant.Outlined" Margin="Margin.Dense" Dense="true">
                    <MudSelectItem Value="@("Active")">Active</MudSelectItem>
                    <MudSelectItem Value="@("Inactive")">Inactive</MudSelectItem>
                </MudSelect>
            </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-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 UpdateGradeRequest 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 UpdateGradeValidator _validator = new();
    private UpdateGradeRequest _model = new();
    private bool _processing = false;

    protected override void OnInitialized()
    {
        _model = new UpdateGradeRequest
        {
            Id = Data.Id,
            Code = Data.Code,
            Name = Data.Name,
            Description = Data.Description,
            SalaryFrom = Data.SalaryFrom,
            SalaryTo = Data.SalaryTo,
            IsOverTimeEligible = Data.IsOverTimeEligible,
            Status = Data.Status,
            CreatedAt = Data.CreatedAt,
            CreatedBy = Data.CreatedBy,
            UpdatedAt = Data.UpdatedAt,
            UpdatedBy = Data.UpdatedBy
        };
    }

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

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

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

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