@page "/admin/common-codes"
@using TaxBaik.Web.Services.AdminClients
@using TaxBaik.Domain.Entities
@attribute [Authorize]
@inject ICommonCodeBrowserClient CommonCodeClient
@inject ISnackbar Snackbar

<PageTitle>공통관리</PageTitle>

<section class="admin-page-hero">
    <div>
        <MudText Typo="Typo.caption" Class="admin-eyebrow">System</MudText>
        <MudText Typo="Typo.h4" Class="admin-page-title">공통관리</MudText>
        <MudText Typo="Typo.body2" Class="admin-page-subtitle">공통코드 그룹과 항목을 일관된 기준으로 관리합니다.</MudText>
    </div>
</section>

<MudGrid Spacing="2">
    <MudItem XS="12" MD="4">
        <MudPaper Class="admin-surface pa-4" Elevation="0">
            <MudText Typo="Typo.h6" Class="mb-3">그룹</MudText>
            <MudSelect T="string" Value="@selectedGroup" ValueChanged="OnGroupChanged" Label="코드 그룹" Variant="Variant.Outlined" FullWidth="true">
                @foreach (var group in groups)
                {
                    <MudSelectItem Value="@group">@group</MudSelectItem>
                }
            </MudSelect>
            <MudButton Class="mt-3" Variant="Variant.Filled" Color="Color.Primary" OnClick="PrepareCreate">새 코드 추가</MudButton>
        </MudPaper>
    </MudItem>

    <MudItem XS="12" MD="8">
        <MudPaper Class="admin-surface pa-4" Elevation="0">
            @if (isLoading)
            {
                <MudProgressLinear Indeterminate="true" />
            }
            else
            {
                <MudTable Items="@codes" Dense="true" Hover="true">
                    <HeaderContent>
                        <MudTh>그룹</MudTh>
                        <MudTh>값</MudTh>
                        <MudTh>이름</MudTh>
                        <MudTh>순서</MudTh>
                        <MudTh>상태</MudTh>
                        <MudTh>작업</MudTh>
                    </HeaderContent>
                    <RowTemplate>
                        <MudTd>@context.CodeGroup</MudTd>
                        <MudTd>@context.CodeValue</MudTd>
                        <MudTd>@context.CodeName</MudTd>
                        <MudTd>@context.SortOrder</MudTd>
                        <MudTd>@(context.IsActive ? "활성" : "비활성")</MudTd>
                        <MudTd>
                            <MudButton Size="Size.Small" Variant="Variant.Text" OnClick="@(() => EditCode(context))">수정</MudButton>
                            <MudButton Size="Size.Small" Variant="Variant.Text" Color="Color.Error" OnClick="@(() => DeleteCode(context))">삭제</MudButton>
                        </MudTd>
                    </RowTemplate>
                </MudTable>

                <MudDivider Class="my-4" />

                <MudForm @ref="form">
                    <MudTextField @bind-Value="editModel.CodeGroup" Label="그룹" Variant="Variant.Outlined" FullWidth="true" Required="true" Disabled="@(!isCreateMode)" Class="mb-3" />
                    <MudTextField @bind-Value="editModel.CodeValue" Label="값" Variant="Variant.Outlined" FullWidth="true" Required="true" Disabled="@(!isCreateMode)" Class="mb-3" />
                    <MudTextField @bind-Value="editModel.CodeName" Label="이름" Variant="Variant.Outlined" FullWidth="true" Required="true" Class="mb-3" />
                    <MudNumericField T="int" @bind-Value="editModel.SortOrder" Label="순서" Variant="Variant.Outlined" FullWidth="true" Class="mb-3" />
                    <MudSwitch @bind-Checked="editModel.IsActive" Color="Color.Primary">활성</MudSwitch>
                    <div class="d-flex gap-2 mt-4">
                        <MudButton Variant="Variant.Filled" Color="Color.Primary" OnClick="SaveCode">저장</MudButton>
                        <MudButton Variant="Variant.Outlined" OnClick="PrepareCreate">초기화</MudButton>
                    </div>
                </MudForm>
            }
        </MudPaper>
    </MudItem>
</MudGrid>

@code {
    private List<string> groups = [];
    private List<CommonCode> codes = [];
    private string selectedGroup = "";
    private bool isLoading = true;
    private MudForm? form;
    private CommonCode editModel = new();
    private bool isCreateMode = true;

    protected override async Task OnInitializedAsync()
    {
        groups = await CommonCodeClient.GetGroupsAsync();
        selectedGroup = groups.FirstOrDefault() ?? "";
        await LoadCodes();
        PrepareCreate();
    }

    private async Task OnGroupChanged(string value)
    {
        selectedGroup = value;
        await LoadCodes();
        PrepareCreate();
    }

    private async Task LoadCodes()
    {
        isLoading = true;
        codes = string.IsNullOrWhiteSpace(selectedGroup)
            ? []
            : await CommonCodeClient.GetByGroupAsync(selectedGroup);
        isLoading = false;
    }

    private void PrepareCreate()
    {
        isCreateMode = true;
        editModel = new CommonCode
        {
            CodeGroup = selectedGroup,
            IsActive = true
        };
    }

    private void EditCode(CommonCode code)
    {
        isCreateMode = false;
        editModel = new CommonCode
        {
            CodeGroup = code.CodeGroup,
            CodeValue = code.CodeValue,
            CodeName = code.CodeName,
            SortOrder = code.SortOrder,
            IsActive = code.IsActive
        };
    }

    private async Task SaveCode()
    {
        if (form != null)
        {
            await form.Validate();
            if (!form.IsValid)
            {
                Snackbar.Add("필수 항목을 입력하세요.", Severity.Warning);
                return;
            }
        }

        if (editModel.CodeValue.Contains(' '))
        {
            Snackbar.Add("code_value에는 공백을 넣을 수 없습니다.", Severity.Error);
            return;
        }

        if (!await CommonCodeClient.UpsertAsync(editModel))
        {
            Snackbar.Add("저장 실패", Severity.Error);
            return;
        }

        Snackbar.Add("저장되었습니다.", Severity.Success);
        await LoadCodes();
        PrepareCreate();
    }

    private async Task DeleteCode(CommonCode code)
    {
        if (!await CommonCodeClient.DeleteAsync(code.CodeGroup, code.CodeValue))
        {
            Snackbar.Add("삭제 실패", Severity.Error);
            return;
        }

        Snackbar.Add("삭제되었습니다.", Severity.Success);
        await LoadCodes();
        PrepareCreate();
    }
}