@page "/admin/settings"
@attribute [Authorize]
@using System.ComponentModel.DataAnnotations
@using System.Collections.Generic
@using TaxBaik.Web.Services
@using TaxBaik.Domain.Interfaces
@inject IApiClient ApiClient
@inject ISnackbar Snackbar

<PageTitle>설정</PageTitle>

<MudText Typo="Typo.h5" Class="mb-4">⚙️ 사이트 설정</MudText>

<MudPaper Class="pa-4" Elevation="1">
    <MudForm>
        <MudTextField @bind-Value="phone" Label="전화번호"
            Variant="Variant.Outlined" Class="mb-4" />

        <MudTextField @bind-Value="email" Label="이메일"
            Variant="Variant.Outlined" Class="mb-4" />

        <MudTextField @bind-Value="kakaoUrl" Label="카카오 채널 URL"
            Variant="Variant.Outlined" Class="mb-4" />

        <MudTextField @bind-Value="instagramUrl" Label="인스타그램"
            Variant="Variant.Outlined" Class="mb-4" />

        <MudButton Variant="Variant.Filled" Color="Color.Primary"
            @onclick="SaveSettings">저장</MudButton>
    </MudForm>
</MudPaper>

<MudPaper Class="pa-4 mt-4" Elevation="1">
    <MudText Typo="Typo.h6" Class="mb-4">계정 관리</MudText>

    <MudForm>
        <MudTextField @bind-Value="currentPassword" Label="현재 비밀번호" InputType="InputType.Password"
            Variant="Variant.Outlined" Class="mb-4" />

        <MudTextField @bind-Value="newPassword" Label="새 비밀번호" InputType="InputType.Password"
            Variant="Variant.Outlined" Class="mb-4" />

        <MudTextField @bind-Value="confirmNewPassword" Label="새 비밀번호 확인" InputType="InputType.Password"
            Variant="Variant.Outlined" Class="mb-4" />

        <MudButton Variant="Variant.Filled" Color="Color.Primary"
            Disabled="@isChangingPassword"
            @onclick="ChangePassword">
            @(isChangingPassword ? "변경 중..." : "비밀번호 변경")
        </MudButton>
    </MudForm>
</MudPaper>

@code {
    private string phone = "010-4122-8268";
    private string email = "taxbaik5668@gmail.com";
    private string kakaoUrl = "http://pf.kakao.com/_xoxchTX";
    private string instagramUrl = "https://www.instagram.com/taxtory5668/";
    private string currentPassword = "";
    private string newPassword = "";
    private string confirmNewPassword = "";
    private bool isChangingPassword;
    private bool isLoadingSettings;

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

    private async Task LoadSettingsAsync()
    {
        isLoadingSettings = true;

        try
        {
            var settings = await ApiClient.GetAsync<Dictionary<string, string>>("site-settings");
            if (settings is null || settings.Count == 0)
                return;

            if (settings.TryGetValue("PhoneNumber", out var loadedPhone) && !string.IsNullOrWhiteSpace(loadedPhone))
                phone = loadedPhone;

            if (settings.TryGetValue("EmailAddress", out var loadedEmail) && !string.IsNullOrWhiteSpace(loadedEmail))
                email = loadedEmail;

            if (settings.TryGetValue("KakaoChannelUrl", out var loadedKakao) && !string.IsNullOrWhiteSpace(loadedKakao))
                kakaoUrl = loadedKakao;

            if (settings.TryGetValue("InstagramUrl", out var loadedInstagram) && !string.IsNullOrWhiteSpace(loadedInstagram))
                instagramUrl = loadedInstagram;
        }
        catch
        {
            Snackbar.Add("사이트 설정을 불러오지 못했습니다.", Severity.Warning);
        }
        finally
        {
            isLoadingSettings = false;
        }
    }

    private async Task SaveSettings()
    {
        if (isLoadingSettings)
            return;

        var response = await ApiClient.PutAsync<SaveSettingsResponse>("site-settings", new
        {
            Phone = phone,
            Email = email,
            KakaoUrl = kakaoUrl,
            InstagramUrl = instagramUrl
        });

        if (response?.Message is null)
        {
            Snackbar.Add("설정 저장에 실패했습니다.", Severity.Error);
            return;
        }

        Snackbar.Add(response.Message, Severity.Success);
    }

    private async Task ChangePassword()
    {
        if (isChangingPassword)
            return;

        if (string.IsNullOrWhiteSpace(currentPassword) || string.IsNullOrWhiteSpace(newPassword))
        {
            Snackbar.Add("현재 비밀번호와 새 비밀번호를 입력하세요.", Severity.Warning);
            return;
        }

        if (newPassword != confirmNewPassword)
        {
            Snackbar.Add("새 비밀번호 확인이 일치하지 않습니다.", Severity.Warning);
            return;
        }

        isChangingPassword = true;

        try
        {
            var response = await ApiClient.PostAsync<ChangePasswordResponse>("auth/change-password", new
            {
                CurrentPassword = currentPassword,
                NewPassword = newPassword
            });

            if (response?.Message == null)
            {
                Snackbar.Add("비밀번호 변경에 실패했습니다.", Severity.Error);
                return;
            }

            Snackbar.Add(response.Message, Severity.Success);
            currentPassword = "";
            newPassword = "";
            confirmNewPassword = "";
        }
        catch
        {
            Snackbar.Add("비밀번호 변경 중 오류가 발생했습니다.", Severity.Error);
        }
        finally
        {
            isChangingPassword = false;
        }
    }

    private class ChangePasswordResponse
    {
        public string Message { get; set; } = "";
    }

    private class SaveSettingsResponse
    {
        public string Message { get; set; } = "";
    }
}