@extends('layouts.school')
@section('title', 'Service Charges')
@section('header', 'Service Charges')
@section('content')
    <div class="mx-auto max-w-4xl space-y-6">

        {{-- Current rule highlight --}}
        @if ($activeRule)
            <div class="rounded-xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5">
                <div class="flex flex-wrap items-center justify-between gap-3">
                    <div>
                        <h3 class="text-sm font-semibold text-gray-900">Current service-charge rule</h3>
                        <p class="mt-1 text-sm text-gray-600">{{ $activeRule->name }}</p>
                        <p class="mt-2 text-2xl font-bold text-gray-900">{{ $activeRule->valueLabel($currency) }}</p>
                        <p class="mt-1 text-xs text-gray-500">
                            Applies to: online payments ·
                            Charge borne by: <span class="font-medium capitalize">{{ str_replace('_', ' ', $activeRule->charge_to) }}</span> ·
                            Gateway fee: <span class="font-medium capitalize">{{ str_replace('_', ' ', $activeRule->gateway_fee_handling) }}</span>
                        </p>
                    </div>
                    <span class="rounded-full bg-green-100 px-3 py-1 text-xs font-medium text-green-700">Active</span>
                </div>
            </div>

            {{-- Example calculation --}}
            @if ($example)
                <div class="rounded-xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5">
                    <h3 class="text-sm font-semibold text-gray-900">Example calculation</h3>
                    <p class="mt-1 text-xs text-gray-500">Based on a school fee of {{ number_format($exampleBase, 2) }} — shown to parents before they pay.</p>
                    <form method="GET" class="mt-3 flex flex-wrap items-center gap-2">
                        <label class="text-sm text-gray-600" for="example_amount">School fee:</label>
                        <div class="flex items-center rounded-lg border border-gray-300 focus-within:border-primary-500">
                            <span class="pl-3 text-sm text-gray-500">{{ $currency === 'NGN' ? '₦' : $currency }}</span>
                            <input type="number" name="example_amount" id="example_amount" value="{{ number_format($exampleBase, 2, '.', '') }}" step="0.01" min="0"
                                class="w-40 rounded-r-lg px-3 py-1.5 text-sm focus:outline-none">
                            <button class="rounded-r-lg bg-primary-600 px-3 py-1.5 text-sm font-medium text-white hover:bg-primary-700">Preview</button>
                        </div>
                    </form>
                    <dl class="mt-4 divide-y divide-gray-100 text-sm">
                        <div class="flex items-center justify-between py-2">
                            <dt class="text-gray-600">School fee</dt>
                            <dd class="font-semibold text-gray-900">{{ number_format((float) $example['base_amount'], 2) }}</dd>
                        </div>
                        <div class="flex items-center justify-between py-2">
                            <dt class="text-gray-600">Pishon service charge <span class="text-xs text-gray-400">({{ $example['rule_name'] }})</span></dt>
                            <dd class="font-semibold text-gray-900">
                                @if ((float) $example['charge_amount'] > 0)
                                    @if ($example['charge_to'] === 'school')
                                        <span class="text-gray-500">{{ number_format((float) $example['charge_amount'], 2) }} · absorbed by school</span>
                                    @else
                                        {{ number_format((float) $example['charge_amount'], 2) }}
                                        @if ($example['charge_to'] === 'split')
                                            <span class="text-xs text-gray-400">(parent pays {{ number_format((float) $example['parent_share'], 2) }})</span>
                                        @endif
                                    @endif
                                @else
                                    <span class="text-gray-500">No charge</span>
                                @endif
                            </dd>
                        </div>
                        <div class="flex items-center justify-between py-2 font-bold">
                            <dt class="text-gray-900">Total the parent pays</dt>
                            <dd class="text-primary-700">{{ number_format((float) $example['total_charged'], 2) }}</dd>
                        </div>
                    </dl>
                </div>
            @endif
        @else
            <div class="rounded-xl bg-amber-50 p-4 text-sm text-amber-800 ring-1 ring-amber-200">
                No active service-charge rule. Parents pay exactly the school fee when paying online —
                no Pishon service charge is applied. Create a rule below to add one.
            </div>
        @endif

        {{-- Create / edit rule --}}
        <div class="rounded-xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5">
            <h3 class="text-sm font-semibold text-gray-900">{{ $activeRule ? 'Edit current rule' : 'Create a service-charge rule' }}</h3>
            <form method="POST"
                  action="{{ $activeRule
                      ? route('school.finance.service-charges.update', [request()->route('schoolId'), $activeRule->id])
                      : route('school.finance.service-charges.store', request()->route('schoolId')) }}"
                  class="mt-4 grid grid-cols-1 gap-4 sm:grid-cols-2">
                @csrf
                @if ($activeRule)
                    @method('PATCH')
                @endif

                <div class="sm:col-span-2">
                    <label class="block text-sm font-medium text-gray-700 mb-1">Rule name</label>
                    <input type="text" name="name" required maxlength="150" value="{{ old('name', $activeRule?->name ?? '') }}"
                        placeholder="e.g. Standard online payment charge"
                        class="w-full rounded-lg border border-gray-300 px-3 py-2 text-sm focus:border-primary-500 focus:outline-none">
                </div>

                <div>
                    <label class="block text-sm font-medium text-gray-700 mb-1">Charge type</label>
                    <select name="charge_type" data-service-charge-type class="w-full rounded-lg border border-gray-300 px-3 py-2 text-sm focus:border-primary-500 focus:outline-none">
                        <option value="fixed" @selected(old('charge_type', $activeRule?->charge_type) === 'fixed')>Fixed amount</option>
                        <option value="percent" @selected(old('charge_type', $activeRule?->charge_type) === 'percent')>Percentage of fee</option>
                        <option value="combined" @selected(old('charge_type', $activeRule?->charge_type) === 'combined')>Fixed + percentage</option>
                    </select>
                </div>

                <div>
                    <label class="block text-sm font-medium text-gray-700 mb-1">Who bears the charge?</label>
                    <select name="charge_to" class="w-full rounded-lg border border-gray-300 px-3 py-2 text-sm focus:border-primary-500 focus:outline-none">
                        <option value="parent" @selected(old('charge_to', $activeRule?->charge_to) === 'parent')>Parent pays it</option>
                        <option value="school" @selected(old('charge_to', $activeRule?->charge_to) === 'school')>School absorbs it</option>
                        <option value="split" @selected(old('charge_to', $activeRule?->charge_to) === 'split')>Split between parent and school</option>
                    </select>
                </div>

                <div>
                    <label class="block text-sm font-medium text-gray-700 mb-1" data-charge-value-label>Charge value</label>
                    <input type="number" name="charge_value" required step="0.01" min="0" max="99999999"
                        value="{{ old('charge_value', $activeRule?->charge_value ?? '0') }}"
                        class="w-full rounded-lg border border-gray-300 px-3 py-2 text-sm focus:border-primary-500 focus:outline-none">
                </div>

                <div data-charge-percent-field class="{{ old('charge_type', $activeRule?->charge_type) === 'combined' ? '' : 'hidden' }}">
                    <label class="block text-sm font-medium text-gray-700 mb-1">Percentage part</label>
                    <input type="number" name="charge_value_percent" step="0.01" min="0" max="100"
                        value="{{ old('charge_value_percent', $activeRule?->charge_value_percent ?? '0') }}"
                        class="w-full rounded-lg border border-gray-300 px-3 py-2 text-sm focus:border-primary-500 focus:outline-none">
                </div>

                <div>
                    <label class="block text-sm font-medium text-gray-700 mb-1">Gateway processing fee</label>
                    <select name="gateway_fee_handling" class="w-full rounded-lg border border-gray-300 px-3 py-2 text-sm focus:border-primary-500 focus:outline-none">
                        <option value="charge_parent" @selected(old('gateway_fee_handling', $activeRule?->gateway_fee_handling) === 'charge_parent')>Passed to parent</option>
                        <option value="absorb" @selected(old('gateway_fee_handling', $activeRule?->gateway_fee_handling) === 'absorb')>Absorbed by school</option>
                        <option value="split" @selected(old('gateway_fee_handling', $activeRule?->gateway_fee_handling) === 'split')>Split</option>
                    </select>
                </div>

                <div class="sm:col-span-2 flex flex-wrap items-center justify-between gap-3">
                    <p class="text-xs text-gray-500">
                        Saving a rule snapshots it onto future payments. Existing payments keep the charge
                        that was true when they were made.
                    </p>
                    <button class="rounded-lg bg-primary-600 px-5 py-2 text-sm font-semibold text-white shadow-sm hover:bg-primary-700">
                        {{ $activeRule ? 'Update rule' : 'Create rule' }}
                    </button>
                </div>
            </form>
        </div>

        {{-- Rule history --}}
        <div class="rounded-xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5">
            <h3 class="text-sm font-semibold text-gray-900">All rules</h3>
            <div class="mt-3 divide-y divide-gray-100">
                @forelse ($rules as $rule)
                    <div class="flex flex-wrap items-center justify-between gap-3 py-3">
                        <div>
                            <p class="text-sm text-gray-800">
                                {{ $rule->name }}
                                <span class="font-mono text-xs text-gray-400">#{{ $rule->id }}</span>
                            </p>
                            <p class="text-xs text-gray-500">
                                {{ $rule->valueLabel($currency) }} ·
                                {{ str_replace('_', ' ', $rule->charge_to) }} bears it ·
                                @if ($rule->is_active)
                                    <span class="font-medium text-green-600">active</span>
                                @else
                                    inactive
                                @endif
                            </p>
                        </div>
                        <div class="flex items-center gap-3">
                            @unless ($rule->is_active)
                                <form method="POST" action="{{ route('school.finance.service-charges.toggle', [request()->route('schoolId'), $rule->id]) }}">
                                    @csrf @method('PATCH')
                                    <button class="text-xs font-medium text-primary-600 underline">Activate</button>
                                </form>
                            @endunless
                            <form method="POST" action="{{ route('school.finance.service-charges.destroy', [request()->route('schoolId'), $rule->id]) }}"
                                  onsubmit="return confirm('Delete this service-charge rule? Historical payments keep their snapshot.')">
                                @csrf @method('DELETE')
                                <button class="text-xs font-medium text-red-600 hover:text-red-700">Delete</button>
                            </form>
                        </div>
                    </div>
                @empty
                    <p class="py-3 text-sm text-gray-500">No service-charge rules yet.</p>
                @endforelse
            </div>
        </div>
    </div>

    <script>
        (function () {
            const typeSelect = document.querySelector('[data-service-charge-type]');
            const valueLabel = document.querySelector('[data-charge-value-label]');
            const percentField = document.querySelector('[data-charge-percent-field]');

            if (!typeSelect || !valueLabel || !percentField) return;

            const render = function () {
                const type = typeSelect.value;
                valueLabel.textContent = type === 'percent' ? 'Percentage value (%)' : type === 'combined' ? 'Fixed amount' : 'Charge value';
                percentField.classList.toggle('hidden', type !== 'combined');
            };

            typeSelect.addEventListener('change', render);
            render();
        })();
    </script>
@endsection