@extends('garage.layouts.app')

@section('title', 'Increments')

@section('content')
@include('garage.hr.styles')

<div class="container-fluid px-3 py-3 hrx-page">
    <div class="hrx-head mb-3">
        <div>
            <div class="h4 mb-0">Increments</div>
            <div class="text-muted small">Save employee increments and update salary.</div>
        </div>
        <button class="btn btn-primary btn-sm" data-bs-toggle="modal" data-bs-target="#incModal" data-mode="create">
            <i class="bi bi-plus-lg me-1"></i>Add
        </button>
    </div>

    @if(session('success'))
        <div class="alert alert-success py-2 small">{{ session('success') }}</div>
    @endif
    @if(session('error'))
        <div class="alert alert-danger py-2 small">{{ session('error') }}</div>
    @endif
    @if($errors->any())
        <div class="alert alert-danger py-2 small">
            <ul class="mb-0 ps-3">@foreach($errors->all() as $e)<li>{{ $e }}</li>@endforeach</ul>
        </div>
    @endif

    <form method="get" class="card hrx-card mb-3">
        <div class="card-body py-2">
            <div class="row g-2 align-items-end">
                <div class="col-md-3">
                    <label class="form-label small mb-1 hrx-muted">Month (optional)</label>
                    <input type="month" name="month" value="{{ $month }}" class="form-control form-control-sm">
                </div>
                <div class="col-md-4">
                    <label class="form-label small mb-1 hrx-muted">Search</label>
                    <input name="search" value="{{ $search }}" class="form-control form-control-sm" placeholder="Employee / code / notes…">
                </div>
                <div class="col-md-2">
                    <button class="btn btn-sm btn-outline-primary w-100">Filter</button>
                </div>
                <div class="col-md-3 text-end">
                    <a class="btn btn-sm btn-outline-secondary" href="{{ route('garage.employee-increments.index') }}">Reset</a>
                </div>
            </div>
        </div>
    </form>

    <div class="card hrx-card">
        <div class="table-responsive">
            <table class="table table-sm mb-0 hrx-table align-middle">
                <thead class="table-light">
                <tr>
                    <th>Employee</th>
                    <th class="text-end">Effective</th>
                    <th class="text-end">Old</th>
                    <th class="text-end">New</th>
                    <th>Notes</th>
                    <th class="text-end" style="width: 170px;">Actions</th>
                </tr>
                </thead>
                <tbody>
                @forelse($rows as $r)
                    <tr>
                        <td>
                            <div class="fw-semibold">
                                @if(!empty($r->employee_ledger_id))
                                    <a class="text-decoration-none" href="{{ route('garage.ledger-reports.ledger', $r->employee_ledger_id) }}">{{ $r->employee_name }}</a>
                                @else
                                    {{ $r->employee_name }}
                                @endif
                            </div>
                            <div class="small hrx-muted">{{ $r->employee_code ?: '—' }}</div>
                        </td>
                        <td class="text-end small">{{ $r->effective_date }}</td>
                        <td class="text-end">{{ number_format((float)$r->old_salary_amount, 2) }}</td>
                        <td class="text-end fw-semibold">{{ number_format((float)$r->new_salary_amount, 2) }}</td>
                        <td class="small">{{ $r->notes ?: '—' }}</td>
                        <td class="text-end">
                            <button
                                type="button"
                                class="btn btn-sm btn-outline-secondary"
                                data-bs-toggle="modal"
                                data-bs-target="#incModal"
                                data-mode="edit"
                                data-id="{{ $r->id }}"
                                data-employee_id="{{ $r->garage_employee_id }}"
                                data-effective_date="{{ $r->effective_date }}"
                                data-old="{{ $r->old_salary_amount }}"
                                data-new="{{ $r->new_salary_amount }}"
                                data-notes="{{ e($r->notes ?? '') }}"
                            >Edit</button>
                            <form method="post" action="{{ route('garage.employee-increments.destroy', $r->id) }}" class="d-inline" onsubmit="return confirm('Remove this increment?');">
                                @csrf
                                @method('DELETE')
                                <button class="btn btn-sm btn-outline-danger">Remove</button>
                            </form>
                        </td>
                    </tr>
                @empty
                    <tr><td colspan="6" class="text-muted p-3">No increments found.</td></tr>
                @endforelse
                </tbody>
            </table>
        </div>
        <div class="card-body py-2">{{ $rows->links() }}</div>
    </div>
</div>

<div class="modal fade" id="incModal" tabindex="-1" aria-hidden="true">
    <div class="modal-dialog modal-lg modal-dialog-centered">
        <div class="modal-content">
            <form method="post" id="incForm" action="{{ route('garage.employee-increments.store') }}">
                @csrf
                <input type="hidden" name="_method" id="incMethod" value="POST">
                <div class="modal-header">
                    <div>
                        <div class="fw-semibold" id="incTitle">Add increment</div>
                        <div class="text-muted small">No separate screen.</div>
                    </div>
                    <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
                </div>
                <div class="modal-body">
                    <div class="row g-3">
                        <div class="col-md-3">
                            <label class="form-label small text-muted">Apply scope</label>
                            <select class="form-select" name="apply_scope" id="incScope">
                                <option value="single">Single employee</option>
                                <option value="all">All employees</option>
                                <option value="department">Department wise</option>
                                <option value="designation">Designation wise</option>
                            </select>
                        </div>
                        <div class="col-md-6">
                            <label class="form-label small text-muted">Employee</label>
                            <select class="form-select" name="garage_employee_id" id="incEmp" required>
                                <option value="">— Select —</option>
                                @foreach($employees as $e)
                                    <option value="{{ $e->id }}" data-salary="{{ (float)($e->salary_amount ?? 0) }}">{{ $e->name }} @if($e->code) · {{ $e->code }} @endif</option>
                                @endforeach
                            </select>
                        </div>
                        <div class="col-md-3">
                            <label class="form-label small text-muted">Department</label>
                            <select class="form-select" name="garage_department_id" id="incDepartment">
                                <option value="">— Any —</option>
                                @foreach(($departments ?? []) as $d)
                                    <option value="{{ $d->id }}">{{ $d->name }}</option>
                                @endforeach
                            </select>
                        </div>
                        <div class="col-md-3">
                            <label class="form-label small text-muted">Designation</label>
                            <select class="form-select" name="garage_designation_id" id="incDesignation">
                                <option value="">— Any —</option>
                                @foreach(($designations ?? []) as $d)
                                    <option value="{{ $d->id }}" data-department-id="{{ $d->garage_department_id }}">{{ $d->name }}</option>
                                @endforeach
                            </select>
                        </div>
                        <div class="col-md-3">
                            <label class="form-label small text-muted">Effective date</label>
                            <input type="date" class="form-control" name="effective_date" id="incDate" required>
                        </div>
                        <div class="col-md-3">
                            <label class="form-label small text-muted">Old salary</label>
                            <input type="number" step="0.01" min="0" class="form-control" name="old_salary_amount" id="incOld">
                        </div>
                        <div class="col-md-3">
                            <label class="form-label small text-muted">Increment mode</label>
                            <select class="form-select" name="increment_mode" id="incMode">
                                <option value="set_salary">Set new salary</option>
                                <option value="add_fixed">Add fixed amount</option>
                                <option value="add_percent">Add % percent</option>
                            </select>
                        </div>
                        <div class="col-md-3">
                            <label class="form-label small text-muted">New salary</label>
                            <input type="number" step="0.01" min="0" class="form-control" name="new_salary_amount" id="incNew" required>
                        </div>
                        <div class="col-md-3">
                            <label class="form-label small text-muted">Increment value</label>
                            <input type="number" step="0.01" min="0" class="form-control" name="increment_value" id="incValue" placeholder="For fixed/% mode">
                        </div>
                        <div class="col-md-3">
                            <label class="form-label small text-muted">Min rating score</label>
                            <input type="number" step="0.01" min="0" max="100" class="form-control" name="rating_min_score" id="incRatingScore" placeholder="Optional">
                        </div>
                        <div class="col-md-3">
                            <label class="form-label small text-muted">Rating value</label>
                            <input class="form-control" name="rating_value" id="incRatingValue" placeholder="Optional (A+, Good)">
                        </div>
                        <div class="col-md-9">
                            <label class="form-label small text-muted">Notes</label>
                            <input class="form-control" name="notes" id="incNotes" placeholder="Optional">
                        </div>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-outline-info" id="incPreviewBtn">Preview matched employees</button>
                    <span class="small text-muted me-auto" id="incPreviewResult"></span>
                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
                    <button class="btn btn-primary" id="incSubmit">Save</button>
                </div>
            </form>
        </div>
    </div>
</div>

@push('scripts')
<script>
    (function () {
        var modal = document.getElementById('incModal');
        if (!modal) return;

        function maybeFillOldFromEmployee() {
            var sel = document.getElementById('incEmp');
            var old = document.getElementById('incOld');
            if (!sel || !old) return;
            if (old.value !== '') return;
            var opt = sel.options[sel.selectedIndex];
            if (!opt) return;
            var s = opt.getAttribute('data-salary');
            if (s !== null && s !== undefined) old.value = s;
        }

        function applyScopeState(mode) {
            var scope = document.getElementById('incScope');
            var emp = document.getElementById('incEmp');
            var dep = document.getElementById('incDepartment');
            var des = document.getElementById('incDesignation');
            if (!scope || !emp || !dep || !des) return;

            var s = scope.value || 'single';
            var isEdit = mode === 'edit';
            scope.disabled = isEdit;

            emp.required = !isEdit && s === 'single';
            dep.required = !isEdit && s === 'department';
            des.required = !isEdit && s === 'designation';

            emp.disabled = isEdit || s !== 'single';
            dep.disabled = isEdit || s !== 'department';
            des.disabled = isEdit || s !== 'designation';
        }

        function applyIncrementModeState() {
            var m = document.getElementById('incMode');
            var newSalary = document.getElementById('incNew');
            var value = document.getElementById('incValue');
            if (!m || !newSalary || !value) return;
            var mode = m.value || 'set_salary';
            newSalary.required = mode === 'set_salary';
            value.required = mode !== 'set_salary';
            newSalary.disabled = mode !== 'set_salary';
            value.disabled = mode === 'set_salary';
        }

        modal.addEventListener('show.bs.modal', function (ev) {
            var btn = ev.relatedTarget;
            var mode = btn && btn.getAttribute('data-mode') ? btn.getAttribute('data-mode') : 'create';

            var form = document.getElementById('incForm');
            var method = document.getElementById('incMethod');
            var title = document.getElementById('incTitle');
            var submit = document.getElementById('incSubmit');

            var emp = document.getElementById('incEmp');
            var date = document.getElementById('incDate');
            var old = document.getElementById('incOld');
            var neu = document.getElementById('incNew');
            var notes = document.getElementById('incNotes');

            if (mode === 'edit') {
                var id = btn.getAttribute('data-id');
                form.action = @json(url('/garage/employee-increments')) + '/' + id;
                method.value = 'PUT';
                title.textContent = 'Edit increment';
                submit.textContent = 'Save changes';

                emp.value = btn.getAttribute('data-employee_id') || '';
                date.value = btn.getAttribute('data-effective_date') || '';
                old.value = btn.getAttribute('data-old') || '';
                neu.value = btn.getAttribute('data-new') || '';
                notes.value = btn.getAttribute('data-notes') || '';
                document.getElementById('incScope').value = 'single';
                document.getElementById('incMode').value = 'set_salary';
                document.getElementById('incValue').value = '';
            } else {
                form.action = @json(route('garage.employee-increments.store'));
                method.value = 'POST';
                title.textContent = 'Add increment';
                submit.textContent = 'Save';

                emp.value = '';
                date.value = @json(date('Y-m-d'));
                old.value = '';
                neu.value = '';
                notes.value = '';
                document.getElementById('incScope').value = 'single';
                document.getElementById('incDepartment').value = '';
                document.getElementById('incDesignation').value = '';
                document.getElementById('incMode').value = 'set_salary';
                document.getElementById('incValue').value = '';
                document.getElementById('incRatingScore').value = '';
                document.getElementById('incRatingValue').value = '';
            }

            setTimeout(maybeFillOldFromEmployee, 50);
            setTimeout(function () { applyScopeState(mode); applyIncrementModeState(); }, 50);
        });

        document.addEventListener('change', function (e) {
            if (!e || !e.target) return;
            if (e.target.id === 'incEmp') maybeFillOldFromEmployee();
            if (e.target.id === 'incScope') applyScopeState('create');
            if (e.target.id === 'incMode') applyIncrementModeState();
        });

        var previewBtn = document.getElementById('incPreviewBtn');
        if (previewBtn) {
            previewBtn.addEventListener('click', function () {
                var form = document.getElementById('incForm');
                var result = document.getElementById('incPreviewResult');
                if (!form || !result) return;
                result.textContent = 'Checking...';
                var payload = new FormData(form);
                fetch(@json(route('garage.employee-increments.preview-targets')), {
                    method: 'POST',
                    headers: {
                        'X-CSRF-TOKEN': @json(csrf_token()),
                        'Accept': 'application/json'
                    },
                    body: payload
                })
                .then(function (r) { return r.json(); })
                .then(function (data) {
                    var c = Number((data && data.count) || 0);
                    result.textContent = 'Matched employees: ' + c;
                })
                .catch(function () {
                    result.textContent = 'Unable to preview.';
                });
            });
        }

        var incForm = document.getElementById('incForm');
        if (incForm) {
            incForm.addEventListener('submit', function (e) {
                var scopeEl = document.getElementById('incScope');
                var resultEl = document.getElementById('incPreviewResult');
                var scope = scopeEl ? (scopeEl.value || 'single') : 'single';
                if (scope === 'single') return;

                var count = '';
                if (resultEl && resultEl.textContent) {
                    var m = resultEl.textContent.match(/(\d+)/);
                    if (m && m[1]) count = m[1];
                }
                var msg = count
                    ? ('About to apply increment to ' + count + ' employees. Continue?')
                    : 'About to apply increment to multiple employees. Continue?';
                if (!window.confirm(msg)) {
                    e.preventDefault();
                }
            });
        }
    })();
</script>
@endpush
@endsection