@page "/admin/revenue-trackings"
@using TaxBaik.Web.Services.AdminClients
@inject IRevenueTrackingBrowserClient RevenueClient
@inject IClientBrowserClient ClientClient
@inject IJSRuntime JS
@attribute [Authorize]

<PageTitle>수익 추적 관리</PageTitle>
<section class="admin-page-hero">
    <div>
        <div class="admin-eyebrow">CRM & 세무관리</div>
        <h1 class="admin-page-title">수익 추적 관리</h1>
        <p class="admin-page-subtitle">청구, 납부, 미수금 상태를 한 화면에서 관리합니다.</p>
    </div>
    <button type="button" class="site-button primary" @onclick="OpenCreateDialog">새 청구 추가</button>
</section>

<div class="admin-surface">
    @if (revenues is null)
    {
        <Skeleton Count="6" CssClass="taxbaik-skeleton-grid" />
    }
    else if (revenues.Count == 0)
    {
        <div class="muted">청구 기록이 없습니다.</div>
    }
    else
    {
        <div class="admin-table-wrap">
            <table class="admin-table">
                <thead>
                    <tr>
                        <th>ID</th>
                        <th>고객</th>
                        <th>청구번호</th>
                        <th>청구일</th>
                        <th>청구액</th>
                        <th>납부여부</th>
                        <th>작업</th>
                    </tr>
                </thead>
                <tbody>
                    @foreach (var item in revenues)
                    {
                        <tr>
                            <td>@item.Id</td>
                            <td>@clientMap.GetValueOrDefault(item.ClientId, $"Client #{item.ClientId}")</td>
                            <td>@item.InvoiceNumber</td>
                            <td>@item.InvoiceDate.ToString("yyyy-MM-dd")</td>
                            <td>@item.Amount.ToString("C")</td>
                            <td><span class="status-pill @(item.PaymentStatus == "paid" ? "success" : "warning")">@(item.PaymentStatus == "paid" ? "납부" : "미납")</span></td>
                            <td>
                                <div class="admin-row-actions">
                                    @if (item.PaymentStatus != "paid")
                                    {
                                        <button type="button" class="site-button secondary" @onclick="@(async () => await MarkPaid(item.Id))">완료</button>
                                    }
                                    <button type="button" class="admin-icon-button danger" @onclick="@(async () => await DeleteRevenue(item.Id))">✕</button>
                                </div>
                            </td>
                        </tr>
                    }
                </tbody>
            </table>
        </div>
    }
</div>

<dialog class="admin-dialog" open="@isDialogOpen">
    <form class="admin-dialog-card" @onsubmit="SaveRevenue" @onsubmit:preventDefault="true">
        <h3>새 청구 추가</h3>
        <label>고객
            <select class="admin-input" @bind="ClientIdText">
                <option value="">선택하세요</option>
                @foreach (var client in clients)
                {
                    <option value="@client.Id.ToString()">@GetClientDisplayName(client)</option>
                }
            </select>
        </label>
        <label>청구번호 <input class="admin-input" @bind="revenueForm.InvoiceNumber" /></label>
        <label>청구일 <input class="admin-input" type="text" placeholder="2026-06-29" @bind="InvoiceDateText" /></label>
        <label>청구액 <input class="admin-input" type="text" placeholder="100000" @bind="AmountText" /></label>
        <label>서비스 유형
            <select class="admin-input" @bind="revenueForm.ServiceType">
                <option value="">선택하세요</option>
                <option value="기장 수수료">기장 수수료</option>
                <option value="세무조정료">세무조정료</option>
                <option value="세무상담료">세무상담료</option>
                <option value="신고 대행료">신고 대행료</option>
                <option value="자문 수수료">자문 수수료</option>
            </select>
        </label>
        <label>납부예정일 <input class="admin-input" type="text" placeholder="2026-07-13" @bind="DueDateText" /></label>
        <div class="admin-dialog-actions">
            <button type="button" class="site-button secondary" @onclick="CloseDialog">취소</button>
            <button type="submit" class="site-button primary">저장</button>
        </div>
    </form>
</dialog>

@code {
    [CascadingParameter] private Task<AuthenticationState>? AuthStateTask { get; set; }
    private List<RevenueTracking>? revenues;
    private List<Client> clients = [];
    private Dictionary<int, string> clientMap = new();
    private bool isDialogOpen;
    private RevenueForm revenueForm = new();

    private string ClientIdText { get => revenueForm.ClientId > 0 ? revenueForm.ClientId.ToString() : ""; set => revenueForm.ClientId = int.TryParse(value, out var id) ? id : 0; }
    private string InvoiceDateText { get => revenueForm.InvoiceDate?.ToString("yyyy-MM-dd") ?? ""; set => revenueForm.InvoiceDate = DateTime.TryParse(value, out var dt) ? dt : null; }
    private string AmountText { get => revenueForm.Amount?.ToString() ?? ""; set => revenueForm.Amount = decimal.TryParse(value, out var amt) ? amt : null; }
    private string DueDateText { get => revenueForm.DueDate?.ToString("yyyy-MM-dd") ?? ""; set => revenueForm.DueDate = DateTime.TryParse(value, out var dt) ? dt : null; }

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        if (firstRender && AuthStateTask != null)
        {
            var authState = await AuthStateTask;
            if (authState.User.Identity?.IsAuthenticated == true)
            {
                await LoadData();
                StateHasChanged();
            }
        }
    }

    private async Task LoadData()
    {
        try
        {
            revenues = await RevenueClient.GetAllAsync();
            var (clientItems, _) = await ClientClient.GetPagedAsync(pageSize: 1000);
            clients = clientItems.ToList();
            clientMap = clients.ToDictionary(c => c.Id, GetClientDisplayName);
        }
        catch (Exception ex)
        {
            await JS.InvokeVoidAsync("alert", $"데이터 로드 실패: {ex.Message}");
        }
    }

    private void OpenCreateDialog()
    {
        revenueForm = new RevenueForm { ClientId = clients.FirstOrDefault()?.Id ?? 0, InvoiceDate = DateTime.Today, DueDate = DateTime.Today.AddDays(14) };
        isDialogOpen = true;
    }

    private async Task SaveRevenue()
    {
        if (revenueForm.ClientId <= 0 || string.IsNullOrWhiteSpace(revenueForm.InvoiceNumber) || revenueForm.Amount is null)
        {
            await JS.InvokeVoidAsync("alert", "필수 항목을 입력해주세요.");
            return;
        }
        try
        {
            var newId = await RevenueClient.CreateAsync(revenueForm.ClientId, revenueForm.InvoiceNumber, revenueForm.InvoiceDate ?? DateTime.Today, revenueForm.Amount.Value, revenueForm.ServiceType, revenueForm.DueDate);
            if (newId > 0)
            {
                await JS.InvokeVoidAsync("alert", "청구가 추가되었습니다.");
                CloseDialog();
                await LoadData();
            }
        }
        catch (Exception ex)
        {
            await JS.InvokeVoidAsync("alert", $"저장 실패: {ex.Message}");
        }
    }

    private async Task MarkPaid(int id)
    {
        try
        {
            await RevenueClient.MarkPaidAsync(id, DateTime.Now);
            await JS.InvokeVoidAsync("alert", "납부가 처리되었습니다.");
            await LoadData();
        }
        catch (Exception ex)
        {
            await JS.InvokeVoidAsync("alert", $"처리 실패: {ex.Message}");
        }
    }

    private async Task DeleteRevenue(int id)
    {
        if (!await JS.InvokeAsync<bool>("confirm", "이 청구를 삭제하시겠습니까?")) return;
        try
        {
            await RevenueClient.DeleteAsync(id);
            await JS.InvokeVoidAsync("alert", "청구가 삭제되었습니다.");
            await LoadData();
        }
        catch (Exception ex)
        {
            await JS.InvokeVoidAsync("alert", $"삭제 실패: {ex.Message}");
        }
    }

    private void CloseDialog() { isDialogOpen = false; revenueForm = new(); }
    private static string GetClientDisplayName(Client client) => !string.IsNullOrWhiteSpace(client.CompanyName) ? client.CompanyName : !string.IsNullOrWhiteSpace(client.Name) ? client.Name : $"Client #{client.Id}";
    private sealed class RevenueForm { public int ClientId { get; set; } public string InvoiceNumber { get; set; } = ""; public DateTime? InvoiceDate { get; set; } public decimal? Amount { get; set; } public string? ServiceType { get; set; } public DateTime? DueDate { get; set; } }
}