@page "/admin/clients/{ClientId:int}"
@attribute [Authorize]
@using TaxBaik.Web.Services
@using TaxBaik.Web.Services.AdminClients
@using TaxBaik.Web.Components.Admin.Shared
@inject IClientBrowserClient ClientClient
@inject IConsultingActivityBrowserClient ConsultingClient
@inject NavigationManager Navigation
@inject ISnackbar Snackbar

<PageTitle>고객 상세</PageTitle>

<section class="admin-page-hero">
    <div>
        <MudText Typo="Typo.caption" Class="admin-eyebrow">Client Details</MudText>
        <MudText Typo="Typo.h4" Class="admin-page-title">고객 상세</MudText>
        <MudText Typo="Typo.body2" Class="admin-page-subtitle">고객 정보와 상담 이력을 관리합니다.</MudText>
    </div>
</section>

@if (client == null)
{
    <MudText>고객을 찾을 수 없습니다.</MudText>
    return;
}

<MudStack Row="true" AlignItems="AlignItems.Center" Class="mb-4" Spacing="2">
    <MudButton Variant="Variant.Outlined" Color="Color.Primary"
               StartIcon="@Icons.Material.Filled.ArrowBack"
               @onclick="@(() => Navigation.NavigateTo("/taxbaik/admin/clients"))">
        목록으로
    </MudButton>
    <MudButton Variant="Variant.Outlined" Color="Color.Warning"
               StartIcon="@Icons.Material.Filled.Edit"
               Href="@($"/taxbaik/admin/clients/{ClientId}/edit")">
        수정
    </MudButton>
</MudStack>

<MudGrid>
    <MudItem xs="12" md="5">
        <MudPaper Class="pa-4" Elevation="1">
            <MudText Typo="Typo.h6" Class="mb-3">고객 정보</MudText>
            <MudGrid Spacing="2">
                <MudItem xs="6">
                    <MudText Typo="Typo.subtitle2" Color="Color.Secondary">이름</MudText>
                    <MudText>@client.Name</MudText>
                </MudItem>
                <MudItem xs="6">
                    <MudText Typo="Typo.subtitle2" Color="Color.Secondary">상호</MudText>
                    <MudText>@(client.CompanyName ?? "-")</MudText>
                </MudItem>
                <MudItem xs="6">
                    <MudText Typo="Typo.subtitle2" Color="Color.Secondary">연락처</MudText>
                    <MudText>@(client.Phone ?? "-")</MudText>
                </MudItem>
                <MudItem xs="6">
                    <MudText Typo="Typo.subtitle2" Color="Color.Secondary">이메일</MudText>
                    <MudText>@(client.Email ?? "-")</MudText>
                </MudItem>
                <MudItem xs="6">
                    <MudText Typo="Typo.subtitle2" Color="Color.Secondary">서비스</MudText>
                    <MudText>@(client.ServiceType ?? "-")</MudText>
                </MudItem>
                <MudItem xs="6">
                    <MudText Typo="Typo.subtitle2" Color="Color.Secondary">사업자 유형</MudText>
                    <MudText>@(client.TaxType ?? "-")</MudText>
                </MudItem>
                <MudItem xs="6">
                    <MudText Typo="Typo.subtitle2" Color="Color.Secondary">유입 경로</MudText>
                    <MudText>@(client.Source ?? "-")</MudText>
                </MudItem>
                <MudItem xs="6">
                    <MudText Typo="Typo.subtitle2" Color="Color.Secondary">등록일</MudText>
                    <MudText>@client.CreatedAt.ToLocalTime().ToString("yyyy-MM-dd")</MudText>
                </MudItem>
                @if (!string.IsNullOrWhiteSpace(client.Memo))
                {
                    <MudItem xs="12">
                        <MudText Typo="Typo.subtitle2" Color="Color.Secondary">메모</MudText>
                        <MudText Style="white-space: pre-wrap;">@client.Memo</MudText>
                    </MudItem>
                }
            </MudGrid>
        </MudPaper>
    </MudItem>

    <MudItem xs="12" md="7">
        <MudPaper Class="pa-4" Elevation="1">
            <MudStack Row="true" AlignItems="AlignItems.Center" Justify="Justify.SpaceBetween" Class="mb-3">
                <MudText Typo="Typo.h6">상담 이력</MudText>
                <MudButton Variant="Variant.Filled" Color="Color.Primary"
                           Size="Size.Small"
                           OnClick="OpenAddConsultation">
                    + 상담 추가
                </MudButton>
            </MudStack>

            @if (showAddForm)
            {
                <MudPaper Class="pa-3 mb-3" Outlined="true">
                    <MudGrid Spacing="2">
                        <MudItem xs="12" sm="6">
                            <MudDatePicker @bind-Date="newDate" Label="상담일" DateFormat="yyyy-MM-dd" />
                        </MudItem>
                        <MudItem xs="12" sm="6">
                        <CommonCodeSelect @bind-Value="newServiceType" Group="CONSULTING_ACTIVITY_TYPE" Label="서비스 분야" Placeholder="선택" Clearable="true" />
                        </MudItem>
                        <MudItem xs="12">
                            <MudTextField T="string" @bind-Value="newSummary" Label="상담 내용 *"
                                          Lines="3" Variant="Variant.Outlined" Required="true" />
                        </MudItem>
                        <MudItem xs="12" sm="6">
                            <MudSelect T="string" @bind-Value="newResult" Label="결과">
                                <MudSelectItem Value="@("")">-</MudSelectItem>
                                @foreach (var r in results)
                                {
                                    <MudSelectItem Value="@r">@r</MudSelectItem>
                                }
                            </MudSelect>
                        </MudItem>
                        <MudItem xs="12" sm="6">
                            <MudNumericField T="decimal?" @bind-Value="newFee" Label="수임료 (원)"
                                            Format="N0" />
                        </MudItem>
                    </MudGrid>
                    <MudStack Row="true" Class="mt-2" Spacing="2">
                        <MudButton Variant="Variant.Filled" Color="Color.Primary" OnClick="AddConsultation">저장</MudButton>
                        <MudButton Variant="Variant.Outlined" OnClick="@(() => showAddForm = false)">취소</MudButton>
                    </MudStack>
                </MudPaper>
            }

            @if (consultations.Count == 0)
            {
                <MudText Color="Color.Secondary">상담 이력이 없습니다.</MudText>
            }
            else
            {
                <MudList T="string" Dense="true">
                    @foreach (var c in consultations)
                    {
                        <MudListItem>
                            <MudPaper Class="pa-3" Outlined="true" Style="width:100%">
                                <MudStack Row="true" AlignItems="AlignItems.Start" Justify="Justify.SpaceBetween">
                                    <div>
                                        <MudText Typo="Typo.caption" Color="Color.Secondary">
                                            @c.ConsultationDate.ToString("yyyy-MM-dd")
                                            @if (!string.IsNullOrEmpty(c.ServiceType)) { <text> · @c.ServiceType</text> }
                                        </MudText>
                                        <MudText Style="white-space: pre-wrap;" Class="mt-1">@c.Summary</MudText>
                                        @if (!string.IsNullOrEmpty(c.Result))
                                        {
                                            <MudChip T="string" Size="Size.Small" Color="Color.Info" Class="mt-1">@c.Result</MudChip>
                                        }
                                        @if (c.Fee.HasValue)
                                        {
                                            <MudText Typo="Typo.caption" Color="Color.Secondary" Class="mt-1">
                                                수임료: @c.Fee.Value.ToString("N0")원
                                            </MudText>
                                        }
                                    </div>
                                    <MudIconButton Icon="@Icons.Material.Filled.Delete"
                                                   Size="Size.Small" Color="Color.Error"
                                                   OnClick="@(() => DeleteConsultation(c.Id))" />
                                </MudStack>
                            </MudPaper>
                        </MudListItem>
                    }
                </MudList>
            }
        </MudPaper>
    </MudItem>
</MudGrid>

@code {
    [Parameter]
    public int ClientId { get; set; }

    private Domain.Entities.Client? client;
    private List<Domain.Entities.Consultation> consultations = [];
    private static readonly string[] results = ["", "상담완료", "추가자료 요청", "견적발송", "계약전환", "보류"];

    private bool showAddForm;
    private DateTime? newDate = DateTime.Today;
    private string newServiceType = "";
    private string newSummary = "";
    private string newResult = "";
    private decimal? newFee;

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

    private async Task LoadAll()
    {
        client = await ClientClient.GetByIdAsync(ClientId);
        consultations = (await ConsultingClient.GetByClientIdAsync(ClientId))
            .Select(c => new Domain.Entities.Consultation
            {
                Id = c.Id,
                ClientId = c.ClientId,
                ConsultationDate = c.ActivityDate,
                ServiceType = c.ActivityType,
                Summary = c.Description,
                Result = null,
                Fee = null
            })
            .ToList();
    }

    private void OpenAddConsultation()
    {
        showAddForm = true;
        newDate = DateTime.Today;
        newServiceType = "";
        newSummary = "";
        newResult = "";
        newFee = null;
    }

    private async Task AddConsultation()
    {
        try
        {
            var newId = await ConsultingClient.CreateAsync(
                ClientId,
                string.IsNullOrWhiteSpace(newServiceType) ? "기타" : newServiceType,
                newDate?.ToUniversalTime() ?? DateTime.UtcNow,
                newSummary,
                null,
                null);

            if (newId <= 0)
                throw new Exception("상담 생성 실패");

            showAddForm = false;
            await LoadAll();
            Snackbar.Add("상담이 추가되었습니다.", Severity.Success);
        }
        catch (ValidationException ex)
        {
            Snackbar.Add(ex.Message, Severity.Error);
        }
        catch (Exception ex)
        {
            Snackbar.Add(ex.Message, Severity.Error);
        }
    }

    private async Task DeleteConsultation(int id)
    {
        await ConsultingClient.DeleteAsync(id);
        await LoadAll();
        Snackbar.Add("삭제되었습니다.", Severity.Info);
    }
}