@page "/admin/consulting-activities"
@using TaxBaik.Web.Services.AdminClients
@inject IConsultingActivityBrowserClient ActivityClient
@inject IClientBrowserClient ClientClient
@inject IJSRuntime JS
@attribute [Authorize]

<PageTitle>상담 활동 관리</PageTitle>
<section class="admin-page-hero">
    <div>
        <div class="admin-eyebrow">CRM & 세무관리</div>
        <h1 class="admin-page-title">상담 활동 관리</h1>
        <p class="admin-page-subtitle">고객별 상담 이력과 팔로업을 추적합니다.</p>
    </div>
    <button type="button" class="site-button primary" @onclick="OpenCreateDialog">새 활동 기록</button>
</section>

<div class="admin-surface">
    @if (activities is null)
    {
        <Skeleton Count="6" CssClass="taxbaik-skeleton-grid" />
    }
    else if (activities.Count == 0)
    {
        <div class="muted">상담 활동이 없습니다.</div>
    }
    else
    {
        <div class="admin-table-wrap">
            <table class="admin-table">
                <thead>
                    <tr>
                        <th>ID</th>
                        <th>고객</th>
                        <th>활동 유형</th>
                        <th>활동일시</th>
                        <th>설명</th>
                        <th>다음 팔로업</th>
                        <th>작업</th>
                    </tr>
                </thead>
                <tbody>
                    @foreach (var item in activities)
                    {
                        <tr>
                            <td>@item.Id</td>
                            <td>@clientMap.GetValueOrDefault(item.ClientId, $"Client #{item.ClientId}")</td>
                            <td>@item.ActivityType</td>
                            <td>@item.ActivityDate.ToString("g")</td>
                            <td>@Truncate(item.Description)</td>
                            <td>@(item.NextFollowupDate?.ToString("yyyy-MM-dd") ?? "—")</td>
                            <td>
                                <div class="admin-row-actions">
                                    <button type="button" class="admin-icon-button" @onclick="@(async () => await OpenEditDialog(item))">✎</button>
                                    <button type="button" class="admin-icon-button danger" @onclick="@(async () => await DeleteActivity(item.Id))">✕</button>
                                </div>
                            </td>
                        </tr>
                    }
                </tbody>
            </table>
        </div>
    }
</div>

<dialog class="admin-dialog" open="@isDialogOpen">
    <form class="admin-dialog-card" @onsubmit="SaveActivity" @onsubmit:preventDefault="true">
        <h3>@(editingActivity == null ? "새 활동 기록" : "활동 기록 수정")</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>활동 유형
            <select class="admin-input" @bind="activityForm.ActivityType">
                <option value="">선택하세요</option>
                <option value="방문 상담">방문 상담</option>
                <option value="전화 상담">전화 상담</option>
                <option value="세무조사 대응 미팅">세무조사 대응 미팅</option>
                <option value="카카오톡 상담">카카오톡 상담</option>
                <option value="이메일 자료 접수">이메일 자료 접수</option>
                <option value="기타">기타</option>
            </select>
        </label>
        <label>활동일 <input class="admin-input" type="text" placeholder="2026-06-29 14:00" @bind="ActivityDateText" /></label>
        <label>설명 <textarea class="admin-input" rows="4" @bind="activityForm.Description"></textarea></label>
        <label>다음 팔로업일 <input class="admin-input" type="text" placeholder="2026-07-10" @bind="NextFollowupText" /></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<ConsultingActivity>? activities;
    private List<Client> clients = [];
    private Dictionary<int, string> clientMap = new();
    private bool isDialogOpen;
    private ConsultingActivity? editingActivity;
    private ConsultingActivityForm activityForm = new();

    private string ClientIdText { get => activityForm.ClientId > 0 ? activityForm.ClientId.ToString() : ""; set => activityForm.ClientId = int.TryParse(value, out var id) ? id : 0; }
    private string ActivityDateText { get => activityForm.ActivityDate?.ToString("yyyy-MM-dd HH:mm") ?? ""; set => activityForm.ActivityDate = DateTime.TryParse(value, out var dt) ? dt : null; }
    private string NextFollowupText { get => activityForm.NextFollowupDate?.ToString("yyyy-MM-dd") ?? ""; set => activityForm.NextFollowupDate = 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
        {
            activities = await ActivityClient.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()
    {
        editingActivity = null;
        activityForm = new ConsultingActivityForm { ClientId = clients.FirstOrDefault()?.Id ?? 0, ActivityDate = DateTime.Now };
        isDialogOpen = true;
    }

    private async Task OpenEditDialog(ConsultingActivity activity)
    {
        editingActivity = activity;
        activityForm = new ConsultingActivityForm
        {
            ClientId = activity.ClientId,
            ActivityType = activity.ActivityType,
            ActivityDate = activity.ActivityDate,
            Description = activity.Description,
            NextFollowupDate = activity.NextFollowupDate
        };
        isDialogOpen = true;
        await Task.CompletedTask;
    }

    private async Task SaveActivity()
    {
        if (activityForm.ClientId <= 0 || string.IsNullOrWhiteSpace(activityForm.ActivityType) || string.IsNullOrWhiteSpace(activityForm.Description))
        {
            await JS.InvokeVoidAsync("alert", "필수 항목을 입력해주세요.");
            return;
        }

        try
        {
            if (editingActivity == null)
            {
                var newId = await ActivityClient.CreateAsync(activityForm.ClientId, activityForm.ActivityType, activityForm.ActivityDate ?? DateTime.Now, activityForm.Description, null, activityForm.NextFollowupDate);
                if (newId > 0)
                {
                    await JS.InvokeVoidAsync("alert", "활동이 기록되었습니다.");
                    CloseDialog();
                    await LoadData();
                }
            }
            else
            {
                await ActivityClient.UpdateAsync(editingActivity.Id, null, activityForm.NextFollowupDate);
                await JS.InvokeVoidAsync("alert", "활동이 업데이트되었습니다.");
                CloseDialog();
                await LoadData();
            }
        }
        catch (Exception ex)
        {
            await JS.InvokeVoidAsync("alert", $"저장 실패: {ex.Message}");
        }
    }

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

    private void CloseDialog() { isDialogOpen = false; editingActivity = null; activityForm = new(); }
    private static string Truncate(string? text) => string.IsNullOrWhiteSpace(text) ? "—" : text.Length > 30 ? text[..30] + "..." : text;
    private static string GetClientDisplayName(Client client) => !string.IsNullOrWhiteSpace(client.CompanyName) ? client.CompanyName : !string.IsNullOrWhiteSpace(client.Name) ? client.Name : $"Client #{client.Id}";
    private sealed class ConsultingActivityForm { public int ClientId { get; set; } public string ActivityType { get; set; } = ""; public DateTime? ActivityDate { get; set; } = DateTime.Now; public string Description { get; set; } = ""; public DateTime? NextFollowupDate { get; set; } }
}