@extends('layouts.app')

@section('title', __('pharmacy::messages.dispense.title', ['reference' => $prescription->reference]))

@section('content')
    <div class="d-flex flex-wrap justify-content-between align-items-start gap-3 mb-4">
        <div>
            <h1 class="px-title">{{ $patient?->name ?? __('pharmacy::messages.queue.unknown_patient') }}</h1>
            <p class="px-subtitle d-flex flex-wrap align-items-center gap-2">
                <span class="font-monospace">{{ $prescription->reference }}</span>
                <span class="px-dot" aria-hidden="true"></span>
                <span>{{ $prescription->issuedAt?->format('d M Y') ?? '—' }}</span>
                @if ($patient?->mrn)
                    <span class="px-dot" aria-hidden="true"></span>
                    <span class="font-monospace">{{ $patient->mrn }}</span>
                @endif
            </p>
        </div>

        <a href="{{ route('pharmacy.queue.index') }}" class="btn px-btn-ghost">{{ __('common.back') }}</a>
    </div>

    @if ($prescription->containsControlledDrug)
        <div class="px-advice px-advice--caution mb-4" role="alert">
            <i class="bi bi-shield-lock-fill" aria-hidden="true"></i>
            <div>{{ __('pharmacy::messages.dispense.controlled_warning') }}</div>
        </div>
    @endif

    <div class="px-layout">
        <div class="min-w-0">
            <x-px.panel :title="__('pharmacy::messages.dispense.medicines')">
                <form method="POST" action="{{ route('pharmacy.dispense.store', $prescription->ulid) }}">
                    @csrf

                    {{-- Carried on the form, so a double submit — a slow
                         connection and an impatient second click — returns the
                         first result instead of dispensing the course twice. --}}
                    <input type="hidden" name="idempotency_key" value="{{ old('idempotency_key', (string) Str::ulid()) }}">

                    @error('quantities')
                        <div class="px-advice px-advice--danger mb-3" role="alert">
                            <i class="bi bi-exclamation-triangle-fill" aria-hidden="true"></i>
                            <div>{{ $message }}</div>
                        </div>
                    @enderror

                    <div class="table-responsive">
                        <table class="px-table table align-middle mb-0">
                            <thead>
                                <tr>
                                    <th scope="col">{{ __('pharmacy::messages.dispense.medicine') }}</th>
                                    <th scope="col">{{ __('pharmacy::messages.dispense.directions') }}</th>
                                    <th scope="col" class="text-end">{{ __('pharmacy::messages.dispense.in_stock') }}</th>
                                    <th scope="col" class="text-end">{{ __('pharmacy::messages.dispense.already') }}</th>
                                    <th scope="col" class="text-end" style="width: 9rem;">
                                        {{ __('pharmacy::messages.dispense.quantity') }}
                                    </th>
                                </tr>
                            </thead>

                            <tbody>
                                @foreach ($lines as $line)
                                    @php
                                        $stock = $available[$line->id] ?? 0;
                                        $out = $dispensed[$line->id] ?? 0;
                                        $suggestion = $suggested[$line->id] ?? null;
                                    @endphp

                                    <tr>
                                        <td>
                                            <span class="fw-medium d-block">{{ $line->label() }}</span>
                                            @if ($line->form)
                                                <span class="px-hint">{{ $line->form }}</span>
                                            @endif
                                        </td>

                                        <td>
                                            <span class="d-block">
                                                {{ collect([$line->dose, $line->frequency, $line->duration])
                                                    ->filter()->implode(' · ') ?: '—' }}
                                            </span>
                                            @if ($line->instructions)
                                                <span class="px-hint">{{ $line->instructions }}</span>
                                            @endif
                                        </td>

                                        <td class="text-end" style="font-variant-numeric: tabular-nums;">
                                            @if ($line->drugId === null)
                                                {{-- Written by name only: there is no formulary entry
                                                     behind it, so there is no shelf to take it off. --}}
                                                <span class="px-pill px-pill--grey">
                                                    {{ __('pharmacy::messages.dispense.not_stocked') }}
                                                </span>
                                            @else
                                                <span class="px-pill {{ $stock > 0 ? 'px-pill--green' : 'px-pill--red' }}">
                                                    {{ number_format($stock) }}
                                                </span>
                                            @endif
                                        </td>

                                        <td class="text-end font-monospace" style="font-variant-numeric: tabular-nums;">
                                            {{ $out > 0 ? number_format($out) : '—' }}
                                        </td>

                                        <td class="text-end">
                                            @if ($line->drugId !== null && $canDispense)
                                                <input type="number" min="0" max="{{ max(0, $stock) }}"
                                                       class="form-control px-input text-end"
                                                       name="quantities[{{ $line->id }}]"
                                                       value="{{ old('quantities.'.$line->id, $suggestion !== null ? min($suggestion, $stock) : '') }}">

                                                @if ($suggestion === null)
                                                    {{-- The parser refuses far more readily than it
                                                         guesses; an unsure figure typed by nobody is
                                                         worse than an empty box. --}}
                                                    <span class="px-hint">{{ __('pharmacy::messages.dispense.enter_quantity') }}</span>
                                                @endif
                                            @else
                                                <span class="px-hint">—</span>
                                            @endif
                                        </td>
                                    </tr>
                                @endforeach
                            </tbody>
                        </table>
                    </div>

                    @if ($canDispense)
                        <div class="d-flex flex-wrap gap-2 mt-3">
                            <button type="submit" class="btn px-btn-primary d-inline-flex align-items-center gap-2">
                                <i class="bi bi-bag-check" aria-hidden="true"></i>
                                {{ __('pharmacy::messages.dispense.hand_over') }}
                            </button>
                            <span class="px-hint align-self-center">{{ __('pharmacy::messages.dispense.all_or_nothing') }}</span>
                        </div>
                    @endif
                </form>
            </x-px.panel>

            @if ($history->isNotEmpty())
                <x-px.panel :title="__('pharmacy::messages.dispense.history')" class="mt-4">
                    @foreach ($history as $entry)
                        <div class="d-flex flex-wrap justify-content-between align-items-start gap-2 py-2 border-bottom">
                            <div class="min-w-0">
                                <span class="fw-medium d-block">
                                    @if ($entry->is_reversal)
                                        <i class="bi bi-arrow-counterclockwise" aria-hidden="true"></i>
                                    @endif
                                    {{ $entry->drug_name }} {{ $entry->strength }}
                                    × {{ number_format($entry->quantity) }}
                                </span>

                                <span class="px-hint">
                                    {{ $entry->dispensed_at?->format('d M Y, H:i') }}
                                    @foreach ($entry->batches as $slice)
                                        · {{ __('pharmacy::messages.dispense.from_batch', [
                                            'batch' => $slice->batch_number,
                                            'quantity' => $slice->quantity,
                                        ]) }}
                                    @endforeach
                                    @if ($entry->reversal_reason)
                                        · {{ $entry->reversal_reason }}
                                    @endif
                                </span>
                            </div>

                            @if ($canDispense && ! $entry->is_reversal && ! $entry->restocked)
                                {{-- Undoing puts the medicine back in the batch it
                                     came out of, so a recall still finds it. --}}
                                <form method="POST" action="{{ route('pharmacy.dispense.reverse', $entry) }}"
                                      class="d-flex gap-2">
                                    @csrf
                                    <label for="reason-{{ $entry->id }}" class="visually-hidden">
                                        {{ __('pharmacy::messages.dispense.reversal_reason') }}
                                    </label>
                                    <select id="reason-{{ $entry->id }}" name="reason" class="form-select px-select form-select-sm">
                                        @foreach (['wrong_medicine', 'wrong_quantity', 'patient_returned', 'prescription_cancelled', 'data_entry_error', 'damaged', 'other'] as $reason)
                                            <option value="{{ __('pharmacy::messages.reversal_reasons.'.$reason) }}">
                                                {{ __('pharmacy::messages.reversal_reasons.'.$reason) }}
                                            </option>
                                        @endforeach
                                    </select>

                                    <button type="submit" class="btn btn-sm px-btn-ghost text-nowrap">
                                        {{ __('pharmacy::messages.dispense.reverse') }}
                                    </button>
                                </form>
                            @elseif ($entry->restocked)
                                <span class="px-pill px-pill--grey">{{ __('pharmacy::messages.dispense.reversed_pill') }}</span>
                            @endif
                        </div>
                    @endforeach
                </x-px.panel>
            @endif
        </div>
    </div>
@endsection