@extends('layouts.app')

@section('page-pretitle', __('Management'))
@section('page-title', __('Project Tasks'))

@section('content')
    <!-- Flash Messages -->
    @if ($errors->any())
        <div id="validation-alert" class="alert alert-danger alert-dismissible fade show position-fixed top-0 end-0 m-4 bg-red text-white d-flex align-items-center shadow" role="alert" style="z-index: 950; width: 450px;">
            <div class="flex-grow-1">
                <ul class="mb-0">
                    @foreach ($errors->all() as $error)
                        <li>{{ $error }}</li>
                    @endforeach
                </ul>
            </div>
            <button type="button" class="btn-close btn-close-white ms-2" data-bs-dismiss="alert" aria-label="Close"></button>
        </div>
    @endif

    @if (session('success'))
        <div id="success-alert" class="alert alert-success alert-dismissible fade show position-fixed top-0 end-0 m-4 bg-green text-white d-flex align-items-center shadow" role="alert" style="z-index: 950; width: 450px;">
            <div class="flex-grow-1">
                {{ session('success') }}
            </div>
            <button type="button" class="btn-close btn-close-white ms-2" data-bs-dismiss="alert" aria-label="Close"></button>
        </div>
    @endif

    <!-- Responsive Styles -->
    <style>
        @media (max-width: 768px) {
            #validation-alert, #success-alert {
                width: 90% !important;
                left: 5% !important;
            }
        }
        @media (max-width: 576px) {
            #validation-alert, #success-alert {
                width: 95% !important;
                left: 2.5% !important;
            }
        }
    </style>

    <div class="page-wrappers">
        <div class="col-12">
            <div class="card shadow-sm rounded-3 border-0 mb-3">
                <div class="card-header bg-white border-bottom py-3 px-4">
                        <!-- Project Info -->
                        <div class="flex-grow-1 me-3 mb-3 mb-md-0">
                            <div class="d-flex align-items-center text-primary mb-2">
                                <i class="ti ti-info-circle me-2"></i>
                                <h4 class="mb-0 fw-bold text-primary">{{ strtoupper($project->ref_no) }}</h4>
                            </div>
                            <div class="text-muted text-uppercase">
                                <small style="font-size: 13px;">{{ $project->description }}</small>
                            </div>
                        </div>

                        <!-- Gantt Chart Button -->
                        <div class="ms-md-auto">
                            <a href="{{ route('project.tasks.gantt', $project->id) }}" class="btn btn-outline-primary w-100 w-md-auto">
                                <i class="ti ti-chart-bar"></i> {{ __('Gantt Chart View') }}
                            </a>
                        </div>
                    {{-- </div> --}}
                </div>
            </div>
        </div>


            <div class="card shadow-sm">
                {{-- Search Filter --}}
                <div class="card-header d-flex flex-column" style="align-items: normal;">
                    <div class="d-flex justify-content-between" data-bs-toggle="collapse" data-bs-target="#search-col">
                        <h3 class="card-title">{{ __('Search Filter') }}</h3>
                        <div class="card-actions btn-actions">
                            <button type="button" class="btn-action" data-bs-toggle="collapse" data-bs-target="#search-col">
                                <i class="ti ti-search"></i>
                            </button>
                        </div>
                    </div>
                    <div id="search-col" class="mt-3 collapse @if(request('q')) show @endif">
                        <form id="form-search" method="GET" action="{{ route('project.tasks', $project->id) }}">
                            <input type="hidden" id="h-entries" name="entries" value="{{ request('entries') }}">
                            <div class="row">
                                <div class="col-md-4">
                                    <div class="form-floating">
                                        <input type="text" class="form-control" id="name" name="name" value="{{ request('name') }}" autocomplete="off">
                                        <label for="name">{{ __('Task Name') }}</label>
                                    </div>
                                </div>
                                <div class="col-md-2">
                                    <div class="form-floating">
                                        <input type="date" class="form-control" id="due_date" name="due_date" value="{{ request('due_date') }}" autocomplete="off">
                                        <label for="due_date">{{ __('Due Date') }}</label>
                                    </div>
                                </div>
                                <div class="col-md-2">
                                    <div class="form-floating">
                                        <select class="form-select" id="status_id" name="status_id" autocomplete="off">
                                            <option value="" disabled hidden {{ request('status_id') == '' ? 'selected' : '' }}>{{ __('Select Status') }}</option>
                                            @foreach ($statuses as $status)
                                                <option value="{{ $status->id }}" {{ request('status_id') == $status->id ? 'selected' : '' }}>
                                                    {{ $status->name }}
                                                </option>
                                            @endforeach
                                        </select>
                                        <label for="status_id">{{ __('Status') }}</label>
                                    </div>
                                </div>
                                <div class="col-md-2">
                                    <div class="form-floating">
                                        <select class="form-select" id="overdue" name="overdue" autocomplete="off">
                                            <option value="" {{ request('overdue') == '' ? 'selected' : '' }}>
                                                {{ __('All Tasks') }}
                                            </option>
                                            <option value="1" {{ request('overdue') == '1' ? 'selected' : '' }}>
                                                {{ __('Overdue Tasks') }}
                                            </option>
                                        </select>
                                        <label for="overdue">{{ __('Overdue Task') }}</label>
                                    </div>
                                </div>
                                <div class="col-auto d-flex align-items-center">
                                    <button type="submit" title="{{ __('Search') }}" name="q" value="1" class="btn btn-ghost-info me-1">
                                        <i class="ti ti-search"></i>
                                    </button>
                                    <a href="{{ route('project.tasks', $project->id) }}" class="btn btn-ghost-yellow" title="{{ __('Reset') }}">
                                        <i class="ti ti-refresh"></i>
                                    </a>
                                </div>
                            </div>
                        </form>
                    </div>
                </div>

                {{-- Add Task Button --}}
                <div class="d-flex flex-row justify-content-between align-items-center m-2 flex-wrap gap-2 p-2">
                    <div class="mb-3 mb-sm-0">
                        @include('asset.entries')
                    </div>
                    <div class="d-flex flex-wrap justify-content-end gap-2">
                        @php
                            $previousUrl = url()->previous();
                            $baseProjectUrl = route('project_list.index');

                            // Extract query from previous URL
                            $parsedUrl = parse_url($previousUrl);
                            parse_str($parsedUrl['query'] ?? '', $queryParams);
                        @endphp

                        @if (Str::startsWith($previousUrl, route('dashboard')))
                            <a href="{{ route('dashboard') }}" class="btn btn-outline-secondary">Back</a>
                        @elseif (Str::startsWith($previousUrl, route('bookmark.index')))
                            <a href="{{ route('bookmark.index') }}" class="btn btn-outline-secondary">Back</a>
                        @elseif (Str::startsWith($previousUrl, $baseProjectUrl))
                            <a href="{{ route('project_list.index', $queryParams) }}" class="btn btn-outline-secondary">Back</a>
                        @else
                            <a href="{{ route('project_list.index') }}" class="btn btn-outline-secondary">Back</a>
                        @endif
                        @if (auth()->user()->role == 'admin')
                            <button class="btn btn-success" data-bs-toggle="modal" data-bs-target="#addTaskModal">
                                {{ __('Add New Task') }}
                            </button>
                        @endif
                        {{-- <a href="{{ route('project.tasks.gantt', $project->id) }}" class="btn btn-outline-info">
                            <i class="ti ti-chart-bar"></i> {{ __('Gantt Chart View') }}
                        </a> --}}
                    </div>
                </div>

                {{-- Tasks Table --}}
                <div class="table-responsive">
                    <table class="table card-table table-vcenter">
                        <thead>
                            <tr>
                                <th>#</th>
                                <th>Task Name</th>
                                <th style="width: 25%">Remarks</th>
                                <th class="text-center">Previous Task</th>
                                <th class="text-center">Assigned To</th>
                                <th class="text-center">Status</th>
                                <th class="text-center">Start Date</th>
                                <th class="text-center">Due Date</th>
                                <th class="text-center">Overdue</th>
                                <th class="text-center">Priority</th>
                                <th class="text-center">Actions</th>
                            </tr>
                        </thead>
                        <tbody>
                            @forelse ($tasks as $task)
                                <tr>
                                    <td>{{ $loop->iteration }}</td>
                                    <td>{{ $task->name }}</td>

                                    <td style="max-width: 300px; white-space: normal; word-break: break-word; text-align: justify;">
                                        {{ $task->remarks ?? '-' }}
                                    </td>

                                    <td class="text-center">
                                        @if ($task->parentTask)
                                            <span class="badge bg-purple-lt text-purple" title="Linked to previous task">
                                                {{ $task->parentTask->name }}
                                            </span>
                                        @else
                                            <span class="text-muted">-</span>
                                        @endif
                                    </td>

                                    <td class="text-center">
                                        <span class="badge bg-cyan-lt text-cyan">
                                            {{ $task->user->name ?? '-' }}
                                        </span>
                                        @php
                                            $latestHistory = $task->histories->last();
                                        @endphp

                                        @if ($latestHistory && $latestHistory->from_user_id)
                                            <small class="text-muted d-block mt-2">
                                                {{-- {{ optional($latestHistory->fromUser)->name }} → {{ optional($latestHistory->toUser)->name }} --}}
                                                {{ optional($latestHistory->fromUser)->name }} → {{ optional($latestHistory->toUser)->name }}
                                            </small>
                                        @endif
                                    </td>

                                    <td class="text-center">
                                        @php
                                            $statusClass = match (strtolower($task->status->name ?? '')) {
                                                'in progress' => 'badge bg-info-lt text-info',
                                                'pending' => 'badge bg-danger-lt text-danger',
                                                'completed' => 'badge bg-success-lt text-success',
                                                'need review' => 'badge bg-warning-lt text-warning',
                                                'not yet submitted' => 'badge bg-primary-lt text-primary',
                                                default => 'badge bg-secondary-lt text-secondary',
                                            };
                                        @endphp
                                        <span class="badge {{ $statusClass }}">
                                            {{ \Illuminate\Support\Str::title($task->status->name ?? '-') }}
                                        </span>
                                    </td>

                                    <td class="text-center text-nowrap">
                                        {{ $task->start_date ? $task->start_date->format('d-m-Y') : '-' }}
                                    </td>

                                    <td class="text-center text-nowrap">
                                        {{ $task->due_date ? $task->due_date->format('d-m-Y') : '-' }}
                                    </td>

                                    <td class="text-center">
                                        @if ($task->due_date < now()->startOfDay())
                                            <span class="badge bg-danger-lt text-danger">Overdue</span>
                                        @elseif ($task->due_date->isSameDay(now()))
                                            <span class="badge bg-warning-lt text-warning">Due Today</span>
                                        @else
                                            <span class="badge bg-success-lt text-success">On Time</span>
                                        @endif
                                    </td>

                                    <td class="text-center">
                                        @if ($task->priority)
                                            <span class="badge bg-red-lt text-red">Priority</span>
                                        @else
                                            <span class="badge bg-gray-lt text-muted">Low Priority</span>
                                        @endif
                                    </td>

                                    <td class="text-center">
                                        <div class="dropdown">
                                            <button class="btn btn-icon btn-light dropdown-toggle" type="button"
                                                id="dropdownMenuButton{{ $task->id }}" data-bs-toggle="dropdown"
                                                aria-expanded="false">
                                                <i class="ti ti-dots-vertical"></i>
                                            </button>
                                            <ul class="dropdown-menu dropdown-menu-end"
                                                aria-labelledby="dropdownMenuButton{{ $task->id }}">
                                                <li>
                                                    <button class="dropdown-item text-warning" data-bs-toggle="modal"
                                                        data-bs-target="#editTaskModal{{ $task->id }}">
                                                        <i class="ti ti-edit me-2"></i> {{ __('Edit') }}
                                                    </button>
                                                </li>
                                                @if (auth()->user()->role == 'admin')
                                                    <li>
                                                        <form action="{{ route('project.tasks.destroy', [$project->id, $task->id]) }}"
                                                            method="POST">
                                                            @csrf
                                                            @method('DELETE')
                                                            <button type="submit" class="btn-delete-project dropdown-item text-danger">
                                                                <i class="ti ti-trash me-2"></i> {{ __('Delete') }}
                                                            </button>
                                                        </form>
                                                    </li>
                                                @endif
                                            </ul>
                                        </div>
                                    </td>
                                </tr>
                                {{-- Edit modal already provided --}}
                                <div class="modal fade" id="editTaskModal{{ $task->id }}" tabindex="-1" aria-labelledby="editTaskModalLabel{{ $task->id }}" aria-hidden="true">
                                <div class="modal-dialog modal-lg modal-fullscreen-sm-down">
                                    <div class="modal-content">
                                        <form action="{{ route('task.update', [$project->id, $task->id]) }}" method="POST">
                                            @csrf
                                            @method('PUT')

                                            <div class="modal-header bg-dark text-white">
                                                <h5 class="modal-title" id="editTaskModalLabel{{ $task->id }}">Edit Task</h5>
                                                <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal" aria-label="Close"></button>
                                            </div>

                                            <div class="modal-body">
                                                <div class="row g-3">
                                                    <div class="col-md-12">
                                                        <label class="form-label">Task Name</label>
                                                        <input type="text" class="form-control" name="name" value="{{ old('name', $task->name) }}" required>
                                                    </div>

                                                    <div class="col-6 mb-3">
                                                        <label for="parent_task_id" class="form-label">Previous Task (Optional)</label>
                                                        <select name="parent_task_id" id="parent_task_id" class="form-select">
                                                            <option value="">-- No Previous Task --</option>
                                                            @foreach ($tasks as $t)
                                                                @if (!isset($task) || $t->id !== $task->id)
                                                                    <option value="{{ $t->id }}" {{ old('parent_task_id', $task->parent_task_id ?? '') == $t->id ? 'selected' : '' }}>
                                                                        {{ $t->name }}
                                                                    </option>
                                                                @endif
                                                            @endforeach
                                                        </select>
                                                    </div>

                                                    <div class="col-md-6">
                                                        <label class="form-label">Assign To</label>
                                                        <select name="user_id" class="form-select" required>
                                                            @foreach ($users as $user)
                                                                <option value="{{ $user->id }}" {{ $task->user_id == $user->id ? 'selected' : '' }}>
                                                                    {{ $user->name }}
                                                                </option>
                                                            @endforeach
                                                        </select>
                                                    </div>

                                                    <div class="col-md-6">
                                                        <label class="form-label">Start Date</label>
                                                        <input type="date" class="form-control" name="start_date" value="{{ $task->start_date ? $task->start_date->format('Y-m-d') : '' }}">
                                                    </div>

                                                    <div class="col-md-6">
                                                        <label class="form-label">Due Date</label>
                                                        <input type="date" class="form-control" name="due_date" value="{{ $task->due_date ? $task->due_date->format('Y-m-d') : '' }}" required>
                                                    </div>

                                                    <div class="col-12">
                                                        <label class="form-label">Remarks</label>
                                                        <textarea class="form-control" name="remarks" rows="3">{{ $task->remarks }}</textarea>
                                                    </div>

                                                    <div class="col-md-6">
                                                        <label class="form-label">Status</label>
                                                        <select name="status_id" class="form-select" required>
                                                            @foreach ($statuses as $status)
                                                                <option value="{{ $status->id }}" {{ $task->status_id == $status->id ? 'selected' : '' }}>
                                                                    {{ \Illuminate\Support\Str::title($status->name) }}
                                                                </option>
                                                            @endforeach
                                                        </select>
                                                    </div>

                                                    <div class="col-6">
                                                        <label class="form-label">Priority</label>
                                                        <div class="form-check form-check-inline">
                                                            <input class="form-check-input" type="radio" name="priority" id="priorityYes{{ $task->id }}" value="1" {{ $task->priority ? 'checked' : '' }}>
                                                            <label class="form-check-label" for="priorityYes{{ $task->id }}">Priority</label>
                                                        </div>
                                                        <div class="form-check form-check-inline">
                                                            <input class="form-check-input" type="radio" name="priority" id="priorityNo{{ $task->id }}" value="0" {{ !$task->priority ? 'checked' : '' }}>
                                                            <label class="form-check-label" for="priorityNo{{ $task->id }}">Not Priority</label>
                                                        </div>
                                                    </div>
                                                    
                                                </div>
                                            </div>

                                            <div class="modal-footer bg-light">
                                                <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
                                                <button type="submit" class="btn btn-primary">Update</button>
                                            </div>
                                        </form>
                                    </div>
                                </div>
                            </div>
                            @empty
                                <tr>
                                    <td colspan="11" class="text-center text-muted py-4">
                                        <p class="text-center text-muted mt-6 mb-6">{{ __('No task yet') }}</p>
                                    </td>
                                </tr>
                            @endforelse
                        </tbody>
                    </table>
                </div>
                {{-- Pagination --}}
                {{-- @if ($tasks->hasPages())
                <div class="card-footer align-items-center">
                    {{ $tasks->withQueryString()->links() }}
                </div>
                @endif --}}
                {{-- Pagination --}}
                @if ($tasks->hasPages())
                    <div class="card-footer bg-transparent border-top-0">
                        {{ $tasks->appends(request()->except('page'))->onEachSide(1)->links('pagination::bootstrap-5') }}
                    </div>
                @endif

                <div class="card-footer">
                </div>

        </div>
        
        {{-- Add Task Modal --}}
    <div class="modal fade" id="addTaskModal" tabindex="-1" aria-labelledby="addTaskModalLabel" aria-hidden="true">
        <div class="modal-dialog modal-lg">
            <div class="modal-content">
                <form action="{{ route('task.store', $project->id) }}" method="POST">
                    @csrf
                    <div class="modal-header bg-dark text-white">
                        <h5 class="modal-title" id="addTaskModalLabel">Add New Task</h5>
                        <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal" aria-label="Close"></button>
                    </div>

                    <div class="modal-body">
                        <div class="row g-3">
                            <div class="col-md-12">
                                <label class="form-label">Task Name</label>
                                <input type="text" class="form-control" name="name" required>
                            </div>

                            <div class="col-6">
                                <label class="form-label">Previous Task (Optional)</label>
                                <select class="form-select" name="parent_task_id">
                                    <option value="" selected>-- No Previous Task --</option>
                                    @foreach ($tasks as $t)
                                        <option value="{{ $t->id }}">{{ $t->name }}</option>
                                    @endforeach
                                </select>
                            </div>

                            <div class="col-md-6">
                                <label class="form-label">Assign To</label>
                                <select name="user_id" class="form-select" required>
                                    @foreach ($users as $user)
                                        <option value="{{ $user->id }}">{{ $user->name }}</option>
                                    @endforeach
                                </select>
                            </div>

                            
                            <div class="col-md-6">
                                <label class="form-label">Start Date</label>
                                <input type="date" class="form-control" name="start_date" required>
                            </div>

                            <div class="col-md-6">
                                <label class="form-label">Due Date</label>
                                <input type="date" class="form-control" name="due_date" required>
                            </div>

                            <div class="col-12">
                                <label class="form-label">Remarks</label>
                                <textarea class="form-control" name="remarks" rows="3"></textarea>
                            </div>

                            <div class="col-md-6">
                                <label class="form-label">Status</label>
                                <select name="status_id" class="form-select" required>
                                    @foreach ($statuses as $status)
                                        <option value="{{ $status->id }}">{{ $status->name }}</option>
                                    @endforeach
                                </select>
                            </div>


                            <div class="col-6">
                                <label class="form-label">Priority</label>
                                <div class="form-check form-check-inline">
                                    <input class="form-check-input" type="radio" name="priority" id="priorityYes" value="1">
                                    <label class="form-check-label" for="priorityYes">Priority</label>
                                </div>
                                <div class="form-check form-check-inline">
                                    <input class="form-check-input" type="radio" name="priority" id="priorityNo" value="0" checked>
                                    <label class="form-check-label" for="priorityNo">Not Priority</label>
                                </div>
                            </div>
                            
                        </div>
                    </div>

                    <div class="modal-footer bg-light">
                        <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
                        <button type="submit" class="btn btn-primary">Save</button>
                    </div>
                </form>
            </div>
        </div>
    </div>
@endsection

@section('script')
<script>
document.addEventListener("DOMContentLoaded", () => {
    $(document).on('change', '#entries', function() {
        $('#h-entries').val($(this).val());
        $('#form-search').submit();
    });

    ['error-alert', 'success-alert', 'validation-alert'].forEach(function(id) {
        const alertElement = document.getElementById(id);
        if (alertElement) {
            setTimeout(() => {
                alertElement.classList.remove('show');
                alertElement.classList.add('hide');
                setTimeout(() => {
                    alertElement.remove();
                }, 500); // Allow fade out
            }, 3000); // 3 seconds before starting hide
        }
    });
});
</script>
@endsection