@extends('layouts.portal')
@php
  $rows = $plan->installments->where('status', '!=', 'cancelled')->values();
  $next = $plan->nextInstallment();
  $fs = $plan->financialStatus();
  $open = $plan->status === 'active';
  $inv = $plan->invoice;
  $course = $plan->enrollment?->batch?->course ?? $plan->course;
  $verify = \App\Services\DocumentVerifier::url('plan', $plan->code);
  $tone = fn ($t) => match ($t) { 'payment_received', 'allocation', 'plan_created' => 'green', 'refund', 'reversal', 'cancel', 'invoice_voided' => 'red', 'waiver', 'discount' => 'amber', default => '' };
@endphp
@section('title', 'Payment plan '.$plan->code)
@section('subtitle', $plan->customer_name.' · '.($course?->title ?? 'Course').($plan->enrollment ? ' · '.$plan->enrollment->batch->batch_code : ''))
@section('actions')
  <a class="btn btn-secondary" href="{{ route('admin.plans.index') }}"><x-icon name="arrow-left" :size="16"/> All plans</a>
  <a class="btn btn-secondary" href="{{ route('admin.comms.compose', ['user' => $plan->user_id, 'template' => 'payment_details', 'plan_id' => $plan->id]) }}"><x-icon name="mail" :size="16"/> Send details</a>
  @if($plan->status !== 'cancelled')<a class="btn btn-secondary" href="{{ route('admin.plans.edit', $plan) }}"><x-icon name="edit" :size="16"/> Edit plan</a>@endif
@endsection
@section('content')
<div class="ac-split">
  <div class="ac-main">
    @if($plan->status === 'cancelled')<div class="callout danger mb-2"><x-icon name="x-circle" :size="20"/><div><b>This plan is cancelled.</b> Payments already received stay on record; unpaid installments were cancelled.</div></div>
    @elseif($plan->status === 'completed')<div class="callout success mb-2"><x-icon name="check-circle" :size="20"/><div><b>Fully paid</b>{{ $plan->completed_at ? ' on '.$plan->completed_at->format('d M Y') : '' }}. The enrollment's financial status is Paid.</div></div>
    @elseif($plan->overdueAmount() > 0)<div class="callout danger mb-2"><x-icon name="alert" :size="20"/><div><b>{{ money2($plan->overdueAmount()) }} overdue.</b> The learner receives an automatic overdue notice; you can also send one from the installment row.</div></div>@endif

    <div class="op-fees">
      <div class="op-fee-card">
        <h2>Fee breakdown</h2>
        <div class="op-fee-line"><span>Course fee</span><b>{{ money2($plan->course_fee) }}</b></div>
        @if((float) $plan->exam_fee > 0)<div class="op-fee-line"><span>Exam fee</span><b>{{ money2($plan->exam_fee) }}</b></div>@endif
        @if((float) $plan->additional_charges > 0)<div class="op-fee-line"><span>{{ $plan->additional_label ?: 'Additional charges' }}</span><b>{{ money2($plan->additional_charges) }}</b></div>@endif
        @if((float) $plan->discount > 0)<div class="op-fee-line"><span>Discount <small>({{ $plan->discount_reason }}{{ $plan->discountAuthorizer ? ' · '.$plan->discountAuthorizer->name : '' }})</small></span><b>− {{ money2($plan->discount) }}</b></div>@endif
        @if((float) $plan->tax_amount > 0)<div class="op-fee-line"><span>Tax {{ rtrim(rtrim(number_format((float) $plan->tax_percent, 2), '0'), '.') }}%</span><b>{{ money2($plan->tax_amount) }}</b></div>@endif
        <div class="op-fee-line"><span>Paid</span><b>{{ money2($plan->paidAmount()) }}</b></div>
        @if($plan->waivedAmount() > 0)<div class="op-fee-line"><span>Waived</span><b>{{ money2($plan->waivedAmount()) }}</b></div>@endif
        <div class="op-fee-line total"><span>Final fee {{ money2($plan->total) }} · remaining</span><b>{{ money2($plan->remaining()) }}</b></div>
        <div class="op-fee-bar" role="progressbar" aria-valuenow="{{ $plan->progressPercent() }}" aria-valuemin="0" aria-valuemax="100"><i style="width:{{ $plan->progressPercent() }}%"></i></div>
        <small>{{ $plan->progressPercent() }}% paid · status <b style="color:#fff">{{ str_replace('_', ' ', ucfirst($fs)) }}</b></small>
      </div>
      <div class="op-next">
        <span class="op-muted small">Next installment</span>
        @if($next)
          <div class="op-next-amt">{{ money2($next->outstanding()) }}</div>
          <div class="op-next-due {{ $next->isOverdue() ? 'late' : '' }}">{{ $next->label }} · due {{ $next->due_date->format('d M Y') }} ({{ $next->due_date->diffForHumans() }})</div>
          <div class="small op-muted">Reminders sent: {{ $next->reminder_count }}{{ $next->last_reminder_at ? ' · last '.$next->last_reminder_at->format('d M, h:i A') : '' }}</div>
          @if($open)<div class="op-row">
            <button class="btn btn-success" type="button" data-modal-open="#pay-{{ $next->id }}"><x-icon name="check" :size="16"/> Record payment</button>
            <form method="post" action="{{ route('admin.plans.installments.remind', $next) }}" data-confirm="Email a {{ $next->isOverdue() ? 'overdue notice' : 'payment reminder' }} to {{ $plan->customer_email }}?">@csrf<button class="btn btn-secondary" type="submit"><x-icon name="bell" :size="16"/> Send reminder</button></form>
          </div>@endif
        @else
          <div class="op-next-amt" style="color:var(--green-ink)">All clear</div>
          <div class="small op-muted">No installment is outstanding.</div>
        @endif
      </div>
    </div>

    <section class="panel" aria-labelledby="sched-h">
      <div class="panel-head"><h2 id="sched-h">Installments</h2><span class="ac-hint">{{ ucfirst($plan->frequency) }} · {{ $rows->count() }} parts</span></div>
      <div class="table-wrap" style="border:0;box-shadow:none"><table class="op-sched">
        <thead><tr><th>Installment</th><th>Due date</th><th class="num">Amount</th><th class="num">Balance</th><th>Status</th><th class="num">Actions</th></tr></thead>
        <tbody>
        @foreach($rows as $x)
          <tr id="inst-{{ $x->id }}" class="{{ $x->status === 'overdue' ? 'is-overdue' : ($x->status === 'due' ? 'is-due' : (in_array($x->status, ['paid', 'waived'], true) ? 'is-paid' : '')) }}">
            <td><span class="op-inst-label">{{ $x->label }}</span>@if((float) $x->waived_amount > 0)<span class="op-inst-meta">Waived {{ money2($x->waived_amount) }} — {{ $x->waiver_reason }}{{ $x->waiver ? ' · '.$x->waiver->name : '' }}</span>@endif @if($x->allocations->where('reversed', false)->isNotEmpty())<span class="op-inst-meta">Receipts: {{ $x->allocations->where('reversed', false)->map(fn ($a) => $a->payment->receipt_no)->filter()->unique()->implode(', ') }}</span>@endif</td>
            <td class="nowrap">{{ $x->due_date->format('d M Y') }}@if($x->original_due_date && ! $x->original_due_date->eq($x->due_date))<span class="op-inst-meta">was {{ $x->original_due_date->format('d M Y') }}</span>@endif</td>
            <td class="num">{{ money2($x->amount) }}@if((float) $x->paid_amount > 0)<span class="op-inst-meta">paid {{ money2($x->paid_amount) }}</span>@endif</td>
            <td class="num"><b>{{ money2($x->outstanding()) }}</b></td>
            <td><x-pill :status="$x->status"/></td>
            <td><div class="op-inst-actions">
              @if($open && $x->outstanding() > 0)
                <button class="icon-btn" type="button" data-modal-open="#pay-{{ $x->id }}" title="Record payment" aria-label="Record payment for {{ $x->label }}"><x-icon name="wallet" :size="16"/></button>
                <button class="icon-btn" type="button" data-modal-open="#res-{{ $x->id }}" title="Reschedule" aria-label="Reschedule {{ $x->label }}"><x-icon name="calendar" :size="16"/></button>
                <button class="icon-btn" type="button" data-modal-open="#waive-{{ $x->id }}" title="Waive amount" aria-label="Waive amount on {{ $x->label }}"><x-icon name="shield" :size="16"/></button>
                <form method="post" action="{{ route('admin.plans.installments.remind', $x) }}" data-confirm="Email a reminder for {{ $x->label }} to {{ $plan->customer_email }}?">@csrf<button class="icon-btn" type="submit" title="Send reminder" aria-label="Send reminder for {{ $x->label }}"><x-icon name="bell" :size="16"/></button></form>
              @else<span class="muted small">—</span>@endif
            </div></td>
          </tr>
        @endforeach
        </tbody>
        <tfoot><tr><td>Total</td><td></td><td class="num">{{ money2($rows->sum('amount')) }}<span class="op-inst-meta">paid {{ money2($rows->sum('paid_amount')) }}</span></td><td class="num">{{ money2($plan->remaining()) }}</td><td colspan="2"></td></tr></tfoot>
      </table></div>
    </section>

    @if($inv)
    <section class="panel mt-3" aria-labelledby="pay-h">
      <div class="panel-head"><h2 id="pay-h">Payments &amp; receipts</h2><a class="ac-hint" href="{{ route('admin.billing.invoices.show', $inv) }}">Invoice {{ $inv->number }} →</a></div>
      @forelse($inv->payments->sortByDesc('id') as $p)
        <div class="ac-pay">
          <div>
            <div class="ac-pay-top"><span class="ac-num">{{ $p->receipt_no ?: $p->reference }}</span><x-pill :status="$p->status === 'failed' ? 'rejected' : $p->status"/></div>
            <div class="ac-pay-meta">{{ ($p->paid_at ?? $p->created_at)->format('d M Y') }} · {{ $methods[$p->method] ?? ucfirst(str_replace('_', ' ', (string) $p->method)) }}@if($p->transaction_ref) · Ref {{ $p->transaction_ref }}@endif · {{ $p->receiver ? 'recorded by '.$p->receiver->name : 'submitted by learner' }}</div>
          </div>
          <div class="ac-money">{{ money2($p->amount) }}</div>
          <div class="ac-actions">
            @if($p->status === 'paid')
              <a class="btn btn-secondary btn-sm" href="{{ route('admin.billing.payments.receipt.pdf', $p) }}" target="_blank" rel="noopener"><x-icon name="download" :size="14"/> Receipt</a>
              <form method="post" action="{{ route('admin.billing.payments.receipt', $p) }}" data-confirm="Re-send receipt {{ $p->receipt_no }}?">@csrf<button class="btn btn-secondary btn-sm" type="submit"><x-icon name="mail" :size="14"/> Resend</button></form>
            @elseif($p->status === 'pending')
              <a class="btn btn-secondary btn-sm" href="{{ route('admin.billing.invoices.show', $inv) }}">Review proof</a>
            @endif
          </div>
        </div>
      @empty
        <div class="table-empty">No payments yet.</div>
      @endforelse
    </section>
    @endif

    <div class="op-grid-2 mt-3">
      <section class="panel"><div class="panel-head"><h2>Financial audit trail</h2><span class="ac-hint">immutable</span></div><div class="panel-body">
        <ul class="op-timeline">
          @forelse($adjustments as $a)
            <li class="{{ $tone($a->type) }}">
              <div class="op-tl-head"><b>{{ $a->typeLabel() }}@if($a->amount !== null) · {{ money2($a->amount) }}@endif</b><span class="op-tl-time">{{ $a->created_at->format('d M Y, h:i A') }}</span></div>
              <div class="op-tl-body">@if($a->amount_before !== null || $a->amount_after !== null){{ $a->amount_before !== null ? money2($a->amount_before) : '—' }} → {{ $a->amount_after !== null ? money2($a->amount_after) : '—' }} · @endif{{ $a->reason }}@if($a->meta['from'] ?? null) ({{ $a->meta['from'] }} → {{ $a->meta['to'] }})@endif</div>
              <div class="op-tl-body">by {{ $a->creator?->name ?? 'System' }}@if($a->authorizer && $a->authorizer->id !== $a->creator?->id) · authorised by {{ $a->authorizer->name }}@endif</div>
            </li>
          @empty
            <li class="gray"><div class="op-tl-body">No changes recorded yet.</div></li>
          @endforelse
        </ul>
      </div></section>
      <section class="panel"><div class="panel-head"><h2>Automation &amp; emails</h2></div><div class="panel-body">
        <ul class="op-timeline">
          @foreach($runs->take(12) as $r)
            <li class="{{ $r->status === 'failed' ? 'red' : ($r->status === 'skipped' ? 'gray' : 'green') }}"><div class="op-tl-head"><b>{{ \App\Services\AutomationCatalog::events()[$r->event][0] ?? $r->event }}</b><span class="op-tl-time">{{ $r->created_at->format('d M, h:i A') }}</span></div><div class="op-tl-body">{{ $r->message }}</div></li>
          @endforeach
          @foreach($emails->take(12) as $m)
            <li class="{{ $m->status === 'failed' ? 'red' : 'gray' }}"><div class="op-tl-head"><b>{{ $m->subject }}</b><span class="op-tl-time">{{ $m->created_at->format('d M, h:i A') }}</span></div><div class="op-tl-body">{{ $m->to_email }} · {{ $m->status }}@if($m->status === 'failed') · <a href="{{ route('admin.comms.history', ['q' => $m->to_email]) }}">retry</a>@endif</div></li>
          @endforeach
          @if($runs->isEmpty() && $emails->isEmpty())<li class="gray"><div class="op-tl-body">Nothing yet.</div></li>@endif
        </ul>
      </div></section>
    </div>
  </div>

  <aside class="ac-aside" aria-label="Plan actions">
    <section class="panel ac-bal">
      <div class="ac-lbl">Remaining balance</div>
      <div class="ac-bal-num {{ $plan->remaining() <= 0 ? 'ok' : '' }}">{{ money2($plan->remaining()) }}</div>
      <div class="ac-sum-row"><span>Final fee</span><b>{{ money2($plan->total) }}</b></div>
      <div class="ac-sum-row"><span>Paid</span><b>{{ money2($plan->paidAmount()) }}</b></div>
      <div class="ac-sum-row"><span>Overdue</span><b class="{{ $plan->overdueAmount() > 0 ? 'ac-late' : '' }}">{{ money2($plan->overdueAmount()) }}</b></div>
      <div class="ac-sum-row"><span>Status</span><x-pill :status="$fs"/></div>
    </section>

    <section class="panel"><div class="panel-head"><h2>Documents</h2></div><div class="panel-body ac-stack">
      <a class="btn btn-secondary" href="{{ route('admin.plans.pdf', $plan) }}" target="_blank" rel="noopener"><x-icon name="eye" :size="16"/> View / print schedule</a>
      <a class="btn btn-secondary" href="{{ route('admin.plans.pdf', [$plan, 'download' => 1]) }}"><x-icon name="download" :size="16"/> Download PDF</a>
      <form method="post" action="{{ route('admin.plans.send', $plan) }}" data-confirm="Email the installment schedule to {{ $plan->customer_email }}?">@csrf<button class="btn btn-secondary btn-block" type="submit"><x-icon name="send" :size="16"/> Email schedule</button></form>
      @if($inv)<a class="btn btn-secondary" href="{{ route('admin.billing.invoices.pdf', $inv) }}" target="_blank" rel="noopener"><x-icon name="receipt" :size="16"/> Invoice {{ $inv->number }}</a>@endif
      <a class="btn btn-ghost" href="{{ $verify }}" target="_blank" rel="noopener"><x-icon name="shield" :size="16"/> Public verification page</a>
      <div class="ac-copy"><input class="input" type="text" readonly value="{{ $verify }}" aria-label="Verification link"><button class="btn btn-secondary btn-sm" type="button" data-copy="{{ $verify }}"><x-icon name="copy" :size="15"/></button></div>
    </div></section>

    @if($open && $plan->remaining() > 0)
    <section class="panel"><div class="panel-head"><h2>Apply discount</h2></div><div class="panel-body">
      <form method="post" action="{{ route('admin.plans.discount', $plan) }}" data-confirm="Apply this discount? It reduces the remaining installments and the invoice, and is recorded with your name.">
        @csrf
        <x-field name="amount" label="Discount amount" type="number" step="0.01" min="1" :max="$plan->remaining()" required/>
        <x-field name="reason" label="Reason / authorisation" required placeholder="e.g. Merit scholarship approved by Director"/>
        <button class="btn btn-secondary btn-block" type="submit">Apply discount</button>
      </form>
    </div></section>
    @endif

    <section class="panel"><div class="panel-head"><h2>Record</h2></div><div class="panel-body small">
      <div class="ac-sum-row"><span>Created</span><b>{{ $plan->created_at->format('d M Y') }}{{ $plan->creator ? ' · '.$plan->creator->name : '' }}</b></div>
      <div class="ac-sum-row"><span>Last updated</span><b>{{ $plan->updated_at->format('d M Y') }}{{ $plan->updater ? ' · '.$plan->updater->name : '' }}</b></div>
      @if($plan->enrollment)<div class="ac-sum-row"><span>Enrollment</span><b>{{ $plan->enrollment->code }} · {{ $plan->enrollment->payment_status }}</b></div>@endif
      @if($plan->user)<div class="ac-sum-row"><span>Learner</span><a href="{{ route('admin.students.show', $plan->user) }}">{{ $plan->user->name }}</a></div>@endif
      @if($open)<button class="btn btn-danger btn-block mt-2" type="button" data-modal-open="#plan-cancel"><x-icon name="x-circle" :size="16"/> Cancel plan</button>@endif
    </div></section>
  </aside>
</div>

@foreach($rows->filter(fn ($x) => $x->outstanding() > 0) as $x)
<div class="modal" id="pay-{{ $x->id }}" role="dialog" aria-modal="true" aria-labelledby="pay-h-{{ $x->id }}"><div class="modal-box">
  <h2 id="pay-h-{{ $x->id }}" style="font-size:1.3rem">Record payment · {{ $x->label }}</h2>
  <p class="ac-modal-note">Outstanding {{ money2($x->outstanding()) }} (due {{ $x->due_date->format('d M Y') }}). A smaller amount is recorded as a partial payment; a larger amount flows to the next installments.</p>
  <form method="post" action="{{ route('admin.plans.installments.pay', $x) }}">@csrf
    <x-field name="amount" label="Amount received" type="number" step="0.01" min="1" :max="$inv?->balance()" :value="$x->outstanding()" required/>
    <x-field name="method" label="Method" type="select" :options="$methods" :value="$plan->payment_method ?: 'bank_transfer'" required/>
    <x-field name="transaction_ref" label="Transaction / slip reference"/>
    <x-field name="paid_on" label="Date received" type="date" :value="now()->toDateString()" :max="now()->toDateString()"/>
    <x-field name="notes" label="Internal note" type="textarea" :rows="2"/>
    <label class="check"><input type="hidden" name="send_receipt" value="0"><input type="checkbox" name="send_receipt" value="1" checked> <span>Generate and email the receipt</span></label>
    <div class="ac-modal-actions"><button class="btn btn-secondary" type="button" data-modal-close>Cancel</button><button class="btn btn-success" type="submit">Record payment</button></div>
  </form>
</div></div>
<div class="modal" id="res-{{ $x->id }}" role="dialog" aria-modal="true" aria-labelledby="res-h-{{ $x->id }}"><div class="modal-box">
  <h2 id="res-h-{{ $x->id }}" style="font-size:1.3rem">Reschedule {{ $x->label }}</h2>
  <form method="post" action="{{ route('admin.plans.installments.reschedule', $x) }}">@csrf
    <x-field name="due_date" label="New due date" type="date" :value="$x->due_date->toDateString()" required/>
    <x-field name="reason" label="Reason" required placeholder="e.g. Salary delayed — learner request"/>
    <div class="ac-modal-actions"><button class="btn btn-secondary" type="button" data-modal-close>Cancel</button><button class="btn btn-primary" type="submit">Reschedule</button></div>
  </form>
</div></div>
<div class="modal" id="waive-{{ $x->id }}" role="dialog" aria-modal="true" aria-labelledby="waive-h-{{ $x->id }}"><div class="modal-box">
  <h2 id="waive-h-{{ $x->id }}" style="font-size:1.3rem">Waive amount · {{ $x->label }}</h2>
  <p class="ac-modal-note">Waivers forgive money permanently and appear as a credit on invoice {{ $inv?->number }}. Your name is recorded as the authoriser.</p>
  <form method="post" action="{{ route('admin.plans.installments.waive', $x) }}">@csrf
    <x-field name="amount" label="Amount to waive" type="number" step="0.01" min="1" :max="$x->outstanding()" :value="$x->outstanding()" required/>
    <x-field name="reason" label="Written reason" type="textarea" :rows="2" required/>
    <label class="check"><input type="checkbox" name="confirm" value="1" required> <span>I am authorised to waive this amount.</span></label>
    <div class="ac-modal-actions"><button class="btn btn-secondary" type="button" data-modal-close>Cancel</button><button class="btn btn-danger" type="submit">Waive</button></div>
  </form>
</div></div>
@endforeach
@if($open)
<div class="modal" id="plan-cancel" role="dialog" aria-modal="true" aria-labelledby="pc-h"><div class="modal-box">
  <h2 id="pc-h" style="font-size:1.3rem">Cancel {{ $plan->code }}?</h2>
  <p class="ac-modal-note">Unpaid installments are cancelled and reminders stop. Received payments and receipts are kept. The invoice is not changed — void or adjust it separately if needed.</p>
  <form method="post" action="{{ route('admin.plans.cancel', $plan) }}">@csrf
    <x-field name="reason" label="Reason" type="textarea" :rows="2" required/>
    <div class="ac-modal-actions"><button class="btn btn-secondary" type="button" data-modal-close>Keep plan</button><button class="btn btn-danger" type="submit">Cancel plan</button></div>
  </form>
</div></div>
@endif
@endsection