@page "/admin/tax-filing-schedules"
@using TaxBaik.Web.Services.AdminClients
@inject ITaxFilingScheduleBrowserClient TaxFilingClient
@inject IClientBrowserClient ClientClient
@inject ISnackbar Snackbar
@inject IDialogService DialogService
@attribute [Authorize]

<PageTitle>신고 일정 관리</PageTitle>

<div class="admin-container">
    <div class="admin-header">
        <MudText Typo="Typo.h5" Class="font-weight-bold">신고 일정 관리</MudText>
        <MudButton Variant="Variant.Filled" Color="Color.Primary" OnClick="OpenCreateDialog" StartIcon="@Icons.Material.Filled.Add">
            새 일정 추가
        </MudButton>
    </div>

    @if (schedules == null)
    {
        <MudProgressCircular Indeterminate="true" Class="mt-4" />
    }
    else if (schedules.Count == 0)
    {
        <MudAlert Severity="Severity.Info" Class="mt-4">신고 일정이 없습니다.</MudAlert>
    }
    else
    {
        <MudDataGrid T="TaxFilingSchedule"
            Items="@schedules"
            Dense="true"
            Hover="true"
            Striped="true"
            Virtualize="true"
            RowsPerPage="30"
            Class="admin-grid mt-4">
            <Columns>
                <PropertyColumn Property="x => x.Id" Title="ID" Sortable="true" />
                <TemplateColumn Title="고객">
                    <CellTemplate>
                        @if (clientMap.TryGetValue(context.Item.ClientId, out var clientName))
                        {
                            <MudLink Href="@($"/taxbaik/admin/clients/{context.Item.ClientId}")" Color="Color.Primary">
                                @clientName
                            </MudLink>
                        }
                    </CellTemplate>
                </TemplateColumn>
                <PropertyColumn Property="x => x.FilingType" Title="신고 유형" />
                <TemplateColumn Title="마감일">
                    <CellTemplate>
                        @{
                            var daysLeft = (context.Item.DueDate.Date - DateTime.Today).Days;
                            var statusColor = daysLeft < 0 ? Color.Error : daysLeft <= 7 ? Color.Warning : Color.Success;
                        }
                        <MudChip Size="Size.Small" Color="@statusColor" Variant="Variant.Filled">
                            @context.Item.DueDate.ToString("yyyy-MM-dd")
                            @if (daysLeft >= 0) { <span>(D-@daysLeft)</span> }
                            else { <span>(마감@(Math.Abs(daysLeft))일경과)</span> }
                        </MudChip>
                    </CellTemplate>
                </TemplateColumn>
                <PropertyColumn Property="x => x.FilingYear" Title="신고연도" />
                <TemplateColumn Title="상태">
                    <CellTemplate>
                        @if (context.Item.Status == "completed")
                        {
                            <MudChip Size="Size.Small" Color="Color.Success" Variant="Variant.Filled">완료</MudChip>
                        }
                        else
                        {
                            <MudChip Size="Size.Small" Color="Color.Default" Variant="Variant.Outlined">대기</MudChip>
                        }
                    </CellTemplate>
                </TemplateColumn>
                <TemplateColumn Title="작업" Sortable="false">
                    <CellTemplate>
                        <MudButtonGroup Size="Size.Small" Variant="Variant.Outlined">
                            @if (context.Item.Status != "completed")
                            {
                                <MudIconButton Icon="@Icons.Material.Filled.CheckCircle" Color="Color.Success"
                                    OnClick="@(async () => await CompleteSchedule(context.Item.Id))" Title="완료" />
                            }
                            <MudIconButton Icon="@Icons.Material.Filled.Delete" Color="Color.Error"
                                OnClick="@(async () => await DeleteSchedule(context.Item.Id))" />
                        </MudButtonGroup>
                    </CellTemplate>
                </TemplateColumn>
            </Columns>
        </MudDataGrid>
    }
</div>

<!-- Create/Edit Dialog -->
<MudDialog @bind-IsVisible="isDialogOpen" Options="new DialogOptions { MaxWidth = MaxWidth.Small, FullWidth = true }">
    <TitleContent>
        <MudText Typo="Typo.h6">@(editingSchedule == null ? "새 신고 일정 추가" : "신고 일정 수정")</MudText>
    </TitleContent>
    <DialogContent>
        <MudForm @ref="form">
            <MudSelect T="int" @bind-Value="scheduleForm.ClientId" Label="고객" Required="true" Variant="Variant.Outlined" FullWidth="true" Class="mb-4">
                @foreach (var client in clients)
                {
                    <MudSelectItem Value="@client.Id">@client.CompanyName</MudSelectItem>
                }
            </MudSelect>
            <MudTextField T="string" @bind-Value="scheduleForm.FilingType" Label="신고 유형" Variant="Variant.Outlined" FullWidth="true" Class="mb-4" Required="true" />
            <MudDatePicker @bind-Date="scheduleForm.DueDate" Label="마감일" Variant="Variant.Outlined" FullWidth="true" Class="mb-4" Required="true" />
            <MudNumericField T="int" @bind-Value="scheduleForm.FilingYear" Label="신고연도" Variant="Variant.Outlined" FullWidth="true" Class="mb-4" Required="true" />
        </MudForm>
    </DialogContent>
    <DialogActions>
        <MudButton OnClick="CloseDialog">취소</MudButton>
        <MudButton Color="Color.Primary" OnClick="SaveSchedule">저장</MudButton>
    </DialogActions>
</MudDialog>

@code {
    private List<TaxFilingSchedule>? schedules;
    private List<Client> clients = [];
    private Dictionary<int, string> clientMap = new();
    private MudForm? form;
    private bool isDialogOpen;
    private TaxFilingSchedule? editingSchedule;
    private TaxFilingScheduleForm scheduleForm = new();

    protected override async Task OnInitializedAsync()
    {
        await LoadData();
    }

    private async Task LoadData()
    {
        try
        {
            schedules = await TaxFilingClient.GetAllAsync();
            var (clientItems, _) = await ClientClient.GetPagedAsync();
            clients = clientItems.ToList();
            clientMap = clients.ToDictionary(c => c.Id, c => c.CompanyName ?? "");
        }
        catch (Exception ex)
        {
            Snackbar.Add($"데이터 로드 실패: {ex.Message}", Severity.Error);
        }
    }

    private void OpenCreateDialog()
    {
        editingSchedule = null;
        scheduleForm = new();
        isDialogOpen = true;
    }

    private async Task SaveSchedule()
    {
        try
        {
            if (editingSchedule == null)
            {
                var newId = await TaxFilingClient.CreateAsync(
                    scheduleForm.ClientId,
                    scheduleForm.FilingType,
                    scheduleForm.DueDate ?? DateTime.Now,
                    scheduleForm.FilingYear);

                if (newId > 0)
                {
                    Snackbar.Add("신고 일정이 추가되었습니다.", Severity.Success);
                    CloseDialog();
                    await LoadData();
                }
            }
        }
        catch (Exception ex)
        {
            Snackbar.Add($"저장 실패: {ex.Message}", Severity.Error);
        }
    }

    private async Task CompleteSchedule(int id)
    {
        try
        {
            await TaxFilingClient.MarkCompletedAsync(id);
            Snackbar.Add("신고 일정이 완료 처리되었습니다.", Severity.Success);
            await LoadData();
        }
        catch (Exception ex)
        {
            Snackbar.Add($"처리 실패: {ex.Message}", Severity.Error);
        }
    }

    private async Task DeleteSchedule(int id)
    {
        var parameters = new DialogParameters();
        parameters.Add("Title", "삭제 확인");
        parameters.Add("Message", "이 신고 일정을 삭제하시겠습니까?");

        var dialog = await DialogService.ShowAsync<ConfirmDialog>("", parameters);
        var result = await dialog.Result;

        if (result?.Canceled ?? true)
            return;

        try
        {
            await TaxFilingClient.DeleteAsync(id);
            Snackbar.Add("신고 일정이 삭제되었습니다.", Severity.Success);
            await LoadData();
        }
        catch (Exception ex)
        {
            Snackbar.Add($"삭제 실패: {ex.Message}", Severity.Error);
        }
    }

    private void CloseDialog()
    {
        isDialogOpen = false;
        editingSchedule = null;
        scheduleForm = new();
    }

    private class TaxFilingScheduleForm
    {
        public int ClientId { get; set; }
        public string FilingType { get; set; } = "";
        public DateTime? DueDate { get; set; }
        public int FilingYear { get; set; } = DateTime.Now.Year;
    }
}

<style>
.admin-container {
    padding: 20px;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.admin-grid {
    font-size: 13px;
}
</style>