@page "/admin/season-simulator"
@attribute [Authorize]
@using TaxBaik.Application.Seasonal
@using TaxBaik.Application.Services

<PageTitle>시즌 시뮬레이터</PageTitle>

<section class="admin-page-hero">
    <div>
        <div class="admin-eyebrow">Season Preview</div>
        <h1 class="admin-page-title">시즌 시뮬레이터</h1>
        <p class="admin-page-subtitle">날짜를 선택해 홈페이지 시즌 화면이 어떻게 보이는지 미리 확인합니다.</p>
    </div>
</section>

<div class="admin-detail-grid">
    <section class="admin-surface">
        <h3 class="admin-section-title">시뮬레이션 날짜</h3>
        <input class="admin-input" type="text" placeholder="yyyy-MM-dd" @bind="SimulationDateText" />
        <div class="admin-divider"></div>
        <div class="admin-stack">
            @foreach (var season in TaxSeasonCalendar.Seasons)
            {
                <button type="button" class="site-button secondary" @onclick="@(() => JumpToSeason(season))">@season.StartMonth/@season.StartDay - @season.Name</button>
            }
        </div>
    </section>

    <section class="admin-surface">
        <h3 class="admin-section-title">홈페이지 미리보기</h3>
        <p class="muted">@(simulationDate?.ToString("yyyy년 MM월 dd일") ?? "날짜를 선택하세요")</p>
        @if (activeSeason != null)
        {
            <span class="status-pill warning">@activeSeason.Name 시즌 활성</span>
            <div class="season-preview">
                @if (activeSeason.DaysUntilDeadline <= 7 && activeSeason.DaysUntilDeadline >= 0)
                {
                    <div class="season-badge">D-@activeSeason.DaysUntilDeadline 마감 임박</div>
                }
                <div class="season-headline">@activeSeason.HeroHeadline</div>
                <div class="season-subtext">@activeSeason.HeroSubtext</div>
                <div class="season-cta">@activeSeason.CtaText</div>
            </div>
            <div class="admin-kv-grid mt-4">
                <div><span>활성 시즌 키</span><strong><code>@activeSeason.Key</code></strong></div>
                <div><span>마감까지</span><strong>@(activeSeason.DaysUntilDeadline >= 0 ? $"D-{activeSeason.DaysUntilDeadline}" : $"마감 후 @(-activeSeason.DaysUntilDeadline)일")</strong></div>
                <div><span>포커스 서비스</span><strong>@activeSeason.FocusService</strong></div>
                <div><span>블로그 카테고리</span><strong>@activeSeason.RelatedCategorySlug</strong></div>
                <div class="span-2"><span>긴박감 배지 문구</span><strong><code>@activeSeason.UrgencyBadge</code></strong></div>
            </div>
        }
        else
        {
            <div class="muted">선택한 날짜는 시즌 비활성 기간입니다. 홈페이지는 기본 Hero를 표시합니다.</div>
            <div class="season-preview mt-4">
                <div class="season-headline">사업자 세금, 부동산,<br />가족자산까지</div>
                <div class="season-subtext">세무사·부동산중개사·보험설계사 자격 보유 | 온라인 맞춤 상담</div>
                <div class="season-cta">무료 상담 신청</div>
            </div>
        }
    </section>
</div>

<div class="admin-surface mt-4">
    <h3 class="admin-section-title">연간 시즌 타임라인</h3>
    <div class="admin-table-wrap">
        <table class="admin-table">
            <thead>
                <tr>
                    <th>기간</th>
                    <th>시즌</th>
                    <th>블로그 카테고리</th>
                    <th>상태</th>
                </tr>
            </thead>
            <tbody>
                @foreach (var s in TaxSeasonCalendar.Seasons)
                {
                    var isActive = activeSeason?.Key == s.Key;
                    <tr>
                        <td>@s.StartMonth/@s.StartDay ~ @s.EndMonth/@s.EndDay</td>
                        <td>@s.Name</td>
                        <td><code>@s.RelatedCategorySlug</code></td>
                        <td>@(isActive ? "활성" : "비활성")</td>
                    </tr>
                }
            </tbody>
        </table>
    </div>
</div>

@code {
    private DateTime? simulationDate = DateTime.Today;
    private CurrentSeasonDto? activeSeason;
    private string SimulationDateText { get => simulationDate?.ToString("yyyy-MM-dd") ?? ""; set { simulationDate = DateTime.TryParse(value, out var dt) ? dt : null; ComputeSeason(); } }

    protected override void OnInitialized() => ComputeSeason();

    private void ComputeSeason()
    {
        if (simulationDate == null) { activeSeason = null; return; }
        var date = simulationDate.Value;
        var season = TaxSeasonCalendar.Seasons.FirstOrDefault(s =>
        {
            var start = new DateTime(date.Year, s.StartMonth, s.StartDay);
            var endYear = (s.EndMonth < s.StartMonth) ? date.Year + 1 : date.Year;
            var end = new DateTime(endYear, s.EndMonth, s.EndDay);
            return date >= start && date <= end;
        });

        if (season == null) { activeSeason = null; return; }

        var endYearCalc = (season.EndMonth < season.StartMonth) ? date.Year + 1 : date.Year;
        var deadline = new DateTime(endYearCalc, season.EndMonth, season.EndDay);
        var ddays = (deadline.Date - date.Date).Days;
        var badge = ddays <= 7 && ddays >= 0 ? season.UrgencyBadge.Replace("{n}", ddays.ToString()) : season.UrgencyBadge;

        activeSeason = new CurrentSeasonDto
        {
            Key = season.Key,
            Name = season.Name,
            HeroHeadline = season.HeroHeadline,
            HeroSubtext = season.HeroSubtext,
            UrgencyBadge = badge,
            FocusService = season.FocusService,
            RelatedCategorySlug = season.RelatedCategorySlug,
            CtaText = season.CtaText,
            DaysUntilDeadline = ddays,
            Deadline = deadline
        };
    }

    private void JumpToSeason(TaxSeason season)
    {
        simulationDate = new DateTime(DateTime.Today.Year, season.StartMonth, season.StartDay);
        ComputeSeason();
    }
}