@prepend('dhtmlxgantt')
    <link href="{{ secure_asset('assets/css/dhtmlxgantt.css') }}" rel="stylesheet">
@endprepend

<x-app-layout>
    <x-slot name="header">
        <h2 class="font-semibold text-xl text-gray-800 dark:text-gray-200 leading-tight">
            {{ __('Global Gantt') }}
        </h2>
    </x-slot>

    <div class="overflow-hidden bg-white flex grow">
        <div class="mx-auto flex grow flex-col w-full p-4">
            <div x-data="globalGanttComponent({
                    projects: {{ Js::from($projects) }},
                    isClientView: {{ Js::from($isClientView ?? false) }},
                    summaryUrl: '{{ route('tenant.api.v1.gantt.summary') }}',
                    saveUrl: '{{ route('api.v1.gantt.global.update') }}',
                    zoomToFitLabel: '{{ __('Zoom to Fit') }}'
                })"
                x-init="init()"
                @destroy.window="destroy()"
                class="gantt-container flex grow flex-col w-full">
                {{-- Project Selection Combobox with Search --}}
                <div class="mb-4 w-full">
                    <label
                        class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">{{ __('Select Projects') }}</label>
                    {{-- Selected Projects Pills (full width) --}}
                    <div x-show="selectedProjects.length > 0" class="mb-2 flex flex-wrap gap-2 w-full">
                        <template x-for="projectId in selectedProjects" :key="projectId">
                            <span
                                class="inline-flex items-center gap-1 px-3 py-1 bg-indigo-100 dark:bg-indigo-900 text-indigo-800 dark:text-indigo-200 rounded-full text-sm">
                                <span x-text="getProjectTitle(projectId)"></span>
                                <button type="button" @click="toggleProject(projectId)"
                                    class="hover:bg-indigo-200 dark:hover:bg-indigo-800 rounded-full p-0.5">
                                    <svg class="w-3 h-3" fill="currentColor" viewBox="0 0 20 20">
                                        <path fill-rule="evenodd"
                                            d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z"
                                            clip-rule="evenodd"></path>
                                    </svg>
                                </button>
                            </span>
                        </template>
                    </div>

                    <div class="relative max-w-2xl">
                        {{-- Search Input --}}
                        <div class="relative">
                            <input type="text" x-model="projectSearch" @click="dropdownOpen = true"
                                @keydown.escape="dropdownOpen = false; projectSearch = ''"
                                @keydown.arrow-down.prevent="focusNextProject()"
                                @keydown.arrow-up.prevent="focusPreviousProject()"
                                @keydown.enter.prevent="selectFocusedProject()"
                                placeholder="{{ __('Search projects...') }}"
                                class="w-full border border-gray-300 dark:border-gray-600 rounded-md px-4 py-2 pr-10 bg-white dark:bg-gray-800 text-gray-900 dark:text-gray-100 placeholder-gray-500 focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500">
                            <div class="absolute inset-y-0 right-0 flex items-center pr-3 pointer-events-none">
                                <svg class="h-5 w-5 text-gray-400" fill="none" stroke="currentColor"
                                    viewBox="0 0 24 24">
                                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
                                        d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"></path>
                                </svg>
                            </div>
                        </div>

                        {{-- Dropdown Results --}}
                        <div x-show="dropdownOpen && filteredProjects.length > 0" x-transition
                            @click.outside="dropdownOpen = false"
                            class="absolute z-20 w-full mt-1 bg-white dark:bg-gray-800 border border-gray-300 dark:border-gray-600 rounded-md shadow-lg max-h-60 overflow-auto">
                            <template x-for="(project, index) in filteredProjects" :key="project.id">
                                <label
                                    class="flex items-center px-4 py-2 cursor-pointer hover:bg-gray-50 dark:hover:bg-gray-700"
                                    :class="{ 'bg-indigo-50 dark:bg-indigo-900/30': focusedProjectIndex === index }">
                                    <input type="checkbox" :value="project.id" @change="toggleProject(project.id)"
                                        :checked="selectedProjects.includes(project.id)"
                                        class="rounded border-gray-300 dark:border-gray-600 text-indigo-600 focus:ring-indigo-500">
                                    <span x-text="project.title" class="ml-2 text-gray-900 dark:text-gray-100"></span>
                                </label>
                            </template>
                        </div>

                        {{-- No Results Message --}}
                        <div x-show="dropdownOpen && filteredProjects.length === 0 && projectSearch.length > 0"
                            x-transition
                            class="absolute z-20 w-full mt-1 bg-white dark:bg-gray-800 border border-gray-300 dark:border-gray-600 rounded-md shadow-lg p-4 text-center text-gray-500 dark:text-gray-400">
                            {{ __('No projects found matching') }} "<span x-text="projectSearch"></span>"
                        </div>
                    </div>
                </div>

                {{-- Empty State --}}
                <div x-show="selectedProjects.length === 0"
                    class="text-center py-12 flex-1 flex items-center justify-center">
                    <div>
                        <h3 class="text-lg font-medium text-gray-900 dark:text-gray-100">
                            {{ __('No projects selected') }}
                        </h3>
                        <p class="mt-2 text-gray-500 dark:text-gray-400">
                            {{ __('Select one or more projects from the dropdown above to view their tasks on the timeline.') }}
                        </p>
                    </div>
                </div>

                {{-- Loading State --}}
                <div x-show="selectedProjects.length > 0 && isLoading"
                    class="text-center py-12 flex-1 flex items-center justify-center">
                    <div>
                        <svg class="animate-spin h-10 w-10 mx-auto text-indigo-600" xmlns="http://www.w3.org/2000/svg"
                            fill="none" viewBox="0 0 24 24">
                            <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4">
                            </circle>
                            <path class="opacity-75" fill="currentColor"
                                d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z">
                            </path>
                        </svg>
                        <p class="mt-4 text-gray-500 dark:text-gray-400">{{ __('Loading projects...') }}</p>
                    </div>
                </div>

                {{-- External Changes Notification Overlay --}}
                <div x-show="hasExternalChanges" x-cloak
                    class="fixed top-4 right-4 bg-blue-500 text-white px-6 py-4 rounded-lg shadow-lg z-50 flex items-center space-x-4">
                    <div>
                        <div class="font-semibold">{{ __('External changes detected') }}</div>
                        <div class="text-sm" x-text="externalChangesCount + ' task(s) modified by other users'"></div>
                    </div>
                    <div class="flex space-x-2">
                        <button type="button" @click="loadExternalChanges()"
                            class="bg-white text-blue-500 px-4 py-2 rounded hover:bg-blue-50 font-medium">
                            {{ __('Load Changes') }}
                        </button>
                        <button type="button" @click="dismissExternalChanges()"
                            class="bg-blue-600 text-white px-4 py-2 rounded hover:bg-blue-700 font-medium">
                            {{ __('Dismiss') }}
                        </button>
                    </div>
                </div>

                {{-- Gantt Chart Container and Controls --}}
                <div x-show="selectedProjects.length > 0 && !isLoading" class="flex flex-col grow min-h-0">
                    <div class="header gantt-header flex justify-between items-center gap-2 mb-2 flex-wrap">
                        {{-- Left side: Zoom controls and Column settings --}}
                        <div class="flex items-center gap-2">
                            <button type="button" class="zoom_toggle btn btn-dark btn-sm"
                                @click.prevent="toFit()">{{ __('Zoom to Fit') }}</button>
                            <button type="button" class="btn btn-dark btn-sm"
                                @click.prevent="zoomGantt('in')">{{ __('Zoom In') }}</button>
                            <button type="button" class="btn btn-dark btn-sm"
                                @click.prevent="zoomGantt('out')">{{ __('Zoom Out') }}</button>

                            {{-- Column Settings Dropdown --}}
                            <div class="relative ml-2">
                                <button @click="showColumnSettings = !showColumnSettings"
                                    class="px-3 py-1 bg-gray-100 hover:bg-gray-200 rounded text-sm font-medium flex items-center border border-gray-300"
                                    title="{{ __('Column Settings') }}">
                                    <svg class="w-4 h-4 mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
                                            d="M12 6V4m0 2a2 2 0 100 4m0-4a2 2 0 110 4m-6 8a2 2 0 100-4m0 4a2 2 0 100 4m0-4v2m0-6V4m6 6v10m6-2a2 2 0 100-4m0 4a2 2 0 100 4m0-4v2m0-6V4" />
                                    </svg>
                                    {{ __('Columns') }}
                                </button>

                                <template x-if="showColumnSettings">
                                    <div>
                                        <div class="fixed inset-0 z-5" @click="showColumnSettings = false"></div>
                                        <div
                                            class="absolute left-0 mt-2 w-56 bg-white rounded-md shadow-lg z-10 border border-gray-200">
                                            <div class="p-3">
                                                <h3 class="text-sm font-medium text-gray-900 mb-3">
                                                    {{ __('Visible Columns') }}
                                                </h3>
                                                <div class="space-y-2">
                                                    <template x-for="column in availableColumns" :key="column.id">
                                                        <label class="flex items-center cursor-pointer">
                                                            <input type="checkbox" :checked="visibleColumns[column.id]"
                                                                @change="toggleColumnVisibility(column.id)"
                                                                class="mr-2 h-4 w-4 text-blue-600 focus:ring-blue-500 border-gray-300 rounded cursor-pointer">
                                                            <span class="text-sm text-gray-700"
                                                                x-text="column.label"></span>
                                                        </label>
                                                    </template>
                                                </div>
                                            </div>
                                        </div>
                                    </div>
                                </template>
                            </div>
                        </div>

                        @if(!$isClientView)
                            {{-- Right side: Date toggle and Save/Discard controls (not shown to clients) --}}
                            <div class="save-controls flex items-center gap-4">
                                {{-- Date Field Toggle Buttons --}}
                                <div class="flex items-center space-x-2">
                                    <span class="text-sm font-medium text-gray-700">{{ __('Date Field:') }}</span>
                                    <div class="flex rounded-md shadow-sm">
                                        <button type="button" @click="setDateField(true)"
                                            :class="useFinishByDate ? 'bg-indigo-600 text-white' : 'bg-white text-gray-700'"
                                            class="px-3 py-1 text-sm font-medium border border-gray-300 rounded-l-md hover:bg-gray-200 hover:text-gray-700 focus:outline-none focus:ring-2 focus:ring-indigo-500">
                                            {{ __('End No Later Than') }}
                                        </button>
                                        <button type="button" @click="setDateField(false)"
                                            :class="!useFinishByDate ? 'bg-indigo-600 text-white' : 'bg-white text-gray-700'"
                                            class="px-3 py-1 text-sm font-medium border-t border-b border-r border-gray-300 rounded-r-md hover:bg-gray-200 hover:text-gray-700 focus:outline-none focus:ring-2 focus:ring-indigo-500">
                                            {{ __('End Date') }}
                                        </button>
                                    </div>
                                </div>

                                {{-- Auto-Scheduling Indicator (read-only display of tenant setting) --}}
                                <div class="flex items-center space-x-1 text-xs text-gray-500" title="{{ __('Auto-scheduling is configured at the account level in Settings') }}">
                                    <svg class="w-3 h-3" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z" />
                                    </svg>
                                    <span x-show="autoSchedulingEnabled">{{ __('Auto-schedule: On') }}</span>
                                    <span x-show="!autoSchedulingEnabled">{{ __('Auto-schedule: Off') }}</span>
                                </div>

                                {{-- Unsaved changes indicator --}}
                                <div x-show="hasUnsavedChanges" class="flex items-center text-orange-600">
                                    <svg class="w-4 h-4 mr-1" fill="currentColor" viewBox="0 0 20 20">
                                        <path fill-rule="evenodd"
                                            d="M8.257 3.099c.765-1.36 2.722-1.36 3.486 0l5.58 9.92c.75 1.334-.213 2.98-1.742 2.98H4.42c-1.53 0-2.493-1.646-1.743-2.98l5.58-9.92zM11 13a1 1 0 11-2 0 1 1 0 012 0zm-1-8a1 1 0 00-1 1v3a1 1 0 002 0V6a1 1 0 00-1-1z"
                                            clip-rule="evenodd"></path>
                                    </svg>
                                    <span x-text="`${pendingChangesCount} unsaved changes`" class="text-sm"></span>
                                </div>

                                {{-- Save Button --}}
                                <button @click="saveAllChanges()" :disabled="!hasUnsavedChanges || isSaving"
                                    class="px-4 py-2 bg-green-500 text-white rounded hover:bg-green-600 disabled:bg-gray-400 disabled:cursor-not-allowed flex items-center">
                                    <svg x-show="isSaving" class="animate-spin -ml-1 mr-2 h-4 w-4 text-white"
                                        xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24">
                                        <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor"
                                            stroke-width="4"></circle>
                                        <path class="opacity-75" fill="currentColor"
                                            d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z">
                                        </path>
                                    </svg>
                                    <span x-text="isSaving ? '{{ __('Saving...') }}' : '{{ __('Save Changes') }}'"></span>
                                </button>

                                {{-- Discard Button --}}
                                <button @click="discardChanges()" :disabled="!hasUnsavedChanges || isSaving"
                                    class="px-4 py-2 bg-red-500 text-white rounded hover:bg-red-600 disabled:bg-gray-400 disabled:cursor-not-allowed">
                                    {{ __('Discard Changes') }}
                                </button>
                            </div>
                        @endif
                    </div>
                    <div id="gantt_here" class="gantt-body grow" style="min-height: 500px;"></div>

                    {{-- Toast Notification Container --}}
                    <div id="toast-container"
                        style="position: fixed; top: 1rem; right: 1rem; z-index: 9999; display: flex; flex-direction: column;">
                    </div>
                </div>
            </div>
        </div>
    </div>

    <script src="{{ secure_asset('assets/js/dhtmlxgantt.js') }}"></script>
    @vite('resources/js/gantt/global-gantt.js')
</x-app-layout>