@extends('layouts.app')

@section('title', 'Connect - Team Leave Calendar')

@section('content')
<div class="page-header d-print-none mb-4">
    <div class="row align-items-center">
        <div class="col">
            <h2 class="page-title text-white">Team Leave Calendar</h2>
            <div class="text-muted small">Overview of approved organizational leaves.</div>
        </div>
    </div>
</div>

@php
    $startOfMonth = sprintf('%04d-%02d-01', $year, $month);
    $daysInMonth = date('t', strtotime($startOfMonth));
    $firstDayOfWeek = date('w', strtotime($startOfMonth));
    $monthName = date('F', strtotime($startOfMonth));
@endphp

<!-- Month selector card -->
<div class="card mb-4">
    <div class="card-body">
        <form action="{{ route('leaves.calendar') }}" method="GET" class="row row-cards align-items-center">
            <div class="col-md-3">
                <label class="form-label text-white-50">Select Month</label>
                <select name="month" class="form-select" onchange="this.form.submit()">
                    @for($m = 1; $m <= 12; $m++)
                        <option value="{{ $m }}" {{ $month == $m ? 'selected' : '' }}>
                            {{ date('F', mktime(0, 0, 0, $m, 1)) }}
                        </option>
                    @endfor
                </select>
            </div>
            <div class="col-md-3">
                <label class="form-label text-white-50">Select Year</label>
                <select name="year" class="form-select" onchange="this.form.submit()">
                    @for($y = date('Y') - 1; $y <= date('Y') + 2; $y++)
                        <option value="{{ $y }}" {{ $year == $y ? 'selected' : '' }}>{{ $y }}</option>
                    @endfor
                </select>
            </div>
            <div class="col-md-6 d-flex justify-content-md-end justify-content-start align-items-center pt-3 pt-md-0">
                <div class="d-flex align-items-center">
                    <span class="badge bg-success me-2">&nbsp;</span>
                    <span class="text-white-50 small">Approved Leaves Timeline</span>
                </div>
            </div>
        </form>
    </div>
</div>

<div class="row row-cards">
    <!-- Calendar Grid -->
    <div class="col-lg-8">
        <div class="card shadow-sm border-0">
            <div class="card-header bg-transparent border-bottom border-secondary py-3">
                <h3 class="card-title text-white fw-bold mb-0">
                    <i class="ti ti-calendar me-1"></i> {{ $monthName }} {{ $year }}
                </h3>
            </div>
            <div class="card-body p-0">
                <div class="table-responsive">
                    <table class="table table-bordered border-secondary m-0 text-center bg-transparent" style="table-layout: fixed; min-height: 400px;">
                        <thead>
                            <tr class="bg-dark text-white-50">
                                <th style="width: 14.28%;">Sun</th>
                                <th style="width: 14.28%;">Mon</th>
                                <th style="width: 14.28%;">Tue</th>
                                <th style="width: 14.28%;">Wed</th>
                                <th style="width: 14.28%;">Thu</th>
                                <th style="width: 14.28%;">Fri</th>
                                <th style="width: 14.28%;">Sat</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr>
                                @php $dayCount = 1; @endphp
                                @for($i = 0; $i < $firstDayOfWeek; $i++)
                                    <td class="bg-dark-lt opacity-25"></td>
                                @endfor

                                @for($day = 1; $day <= $daysInMonth; $day++)
                                    @php
                                        $currentDateStr = sprintf('%04d-%02d-%02d', $year, $month, $day);
                                        $currentDate = new \DateTime($currentDateStr);
                                        
                                        // Find leaves active on this day
                                        $activeLeaves = $leaves->filter(function($l) use ($currentDate) {
                                            return $currentDate >= $l->start_date && $currentDate <= $l->end_date;
                                        });

                                        $isToday = $currentDateStr === date('Y-m-d');
                                    @endphp
                                    <td class="align-top p-2 {{ $isToday ? 'bg-primary-lt' : '' }}" style="height: 100px;">
                                        <div class="d-flex justify-content-between mb-1">
                                            <span class="fw-bold {{ $isToday ? 'text-primary' : 'text-white-50' }}">{{ $day }}</span>
                                            @if($isToday)
                                                <span class="badge bg-primary text-white small" style="font-size: 8px;">TODAY</span>
                                            @endif
                                        </div>
                                        <div class="d-flex flex-column gap-1" style="max-height: 70px; overflow-y: auto;">
                                            @foreach($activeLeaves as $leave)
                                                <div class="badge bg-success-lt text-start text-truncate py-1 px-2 border border-success" 
                                                    style="font-size: 10px; cursor: pointer;" 
                                                    title="{{ $leave->employee->fullName }} - {{ $leave->leaveType->name }} ({{ $leave->total_days }} days)">
                                                    <i class="ti ti-user small"></i> {{ $leave->employee->first_name }}
                                                </div>
                                            @endforeach
                                        </div>
                                    </td>

                                    @if(($day + $firstDayOfWeek) % 7 == 0 && $day < $daysInMonth)
                                        </tr><tr>
                                    @endif
                                @endfor

                                @php
                                    $remainingCells = 7 - (($daysInMonth + $firstDayOfWeek) % 7);
                                @endphp
                                @if($remainingCells < 7)
                                    @for($i = 0; $i < $remainingCells; $i++)
                                        <td class="bg-dark-lt opacity-25"></td>
                                    @endfor
                                @endif
                            </tr>
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
    </div>

    <!-- Active leaves side panel list -->
    <div class="col-lg-4">
        <div class="card shadow-sm">
            <div class="card-header bg-transparent border-bottom border-secondary">
                <h3 class="card-title text-white fw-bold">Active & Upcoming Leaves</h3>
            </div>
            <div class="card-body">
                <div class="divide-y border-secondary">
                    @if($leaves->isEmpty())
                        <div class="text-center text-muted py-5">
                            <i class="ti ti-plane-departure fs-1 mb-2"></i>
                            <p class="mb-0">No approved leaves logged for this month.</p>
                        </div>
                    @else
                        @foreach($leaves as $leave)
                            <div class="py-3">
                                <div class="row align-items-center">
                                    <div class="col-auto">
                                        <span class="avatar avatar-md rounded-circle" style="background-image: url({{ $leave->employee->avatar ? asset('storage/'.$leave->employee->avatar) : 'https://www.gravatar.com/avatar/'.md5(strtolower(trim($leave->employee->email))).'?d=mp' }})"></span>
                                    </div>
                                    <div class="col">
                                        <div class="font-weight-medium text-white">{{ $leave->employee->fullName }}</div>
                                        <div class="text-muted small">
                                            {{ $leave->start_date->format('d M') }} - {{ $leave->end_date->format('d M Y') }}
                                        </div>
                                    </div>
                                    <div class="col-auto text-end">
                                        <span class="badge bg-blue-lt mb-1">{{ $leave->leaveType->code }}</span>
                                        <div class="text-success small fw-bold">{{ (float)$leave->total_days }} days</div>
                                    </div>
                                </div>
                            </div>
                        @endforeach
                    @endif
                </div>
            </div>
        </div>
    </div>
</div>
@endsection