<?php

/*
 * Core PHP Framework
 *
 * Licensed under the European Union Public Licence (EUPL) v1.2.
 * See LICENSE file for details.
 */

declare(strict_types=1);

use Livewire\Attributes\Computed;
use Livewire\Attributes\Url;
use Livewire\Component;
use Livewire\Livewire;

/**
 * Tests for ActivityLog modal component patterns.
 *
 * These tests verify the ActivityLog behaviour using test doubles:
 * search filtering, log name filtering, event filtering, pagination
 * reset on filter changes, clearing filters, and activity item mapping.
 */

// =============================================================================
// Test Double Components
// =============================================================================

/**
 * ActivityLog-style component with search, filters, and computed data.
 */
class ActivityLogModalDouble extends Component
{
    #[Url]
    public string $search = '';

    #[Url]
    public string $logName = '';

    #[Url]
    public string $event = '';

    public int $page = 1;

    // Simulated activity data
    public array $activityData = [];

    public function mount(): void
    {
        // Seed with sample activity data
        $this->activityData = [
            [
                'id' => 1,
                'description' => 'Created new workspace',
                'log_name' => 'workspace',
                'event' => 'created',
                'causer_name' => 'John Doe',
                'subject_type' => 'Workspace',
                'subject_name' => 'My Project',
                'changes' => null,
                'timestamp' => '2026-03-20 10:00:00',
            ],
            [
                'id' => 2,
                'description' => 'Updated user profile',
                'log_name' => 'user',
                'event' => 'updated',
                'causer_name' => 'Jane Smith',
                'subject_type' => 'User',
                'subject_name' => 'Jane Smith',
                'changes' => ['old' => ['name' => 'Jane'], 'new' => ['name' => 'Jane Smith']],
                'timestamp' => '2026-03-21 14:30:00',
            ],
            [
                'id' => 3,
                'description' => 'Deleted old service',
                'log_name' => 'service',
                'event' => 'deleted',
                'causer_name' => 'Admin',
                'subject_type' => 'Service',
                'subject_name' => 'Legacy API',
                'changes' => null,
                'timestamp' => '2026-03-22 09:15:00',
            ],
            [
                'id' => 4,
                'description' => 'Updated workspace settings',
                'log_name' => 'workspace',
                'event' => 'updated',
                'causer_name' => 'John Doe',
                'subject_type' => 'Workspace',
                'subject_name' => 'My Project',
                'changes' => ['old' => ['public' => false], 'new' => ['public' => true]],
                'timestamp' => '2026-03-23 11:45:00',
            ],
            [
                'id' => 5,
                'description' => 'Created new user account',
                'log_name' => 'user',
                'event' => 'created',
                'causer_name' => 'System',
                'subject_type' => 'User',
                'subject_name' => 'New User',
                'changes' => null,
                'timestamp' => '2026-03-24 08:00:00',
            ],
        ];
    }

    public function clearFilters(): void
    {
        $this->search = '';
        $this->logName = '';
        $this->event = '';
        $this->page = 1;
    }

    #[Computed]
    public function logNames(): array
    {
        return array_values(array_unique(array_column($this->activityData, 'log_name')));
    }

    #[Computed]
    public function events(): array
    {
        return array_values(array_unique(array_column($this->activityData, 'event')));
    }

    #[Computed]
    public function logNameOptions(): array
    {
        $options = ['' => 'All logs'];
        foreach ($this->logNames as $name) {
            $options[$name] = ucfirst($name);
        }

        return $options;
    }

    #[Computed]
    public function eventOptions(): array
    {
        $options = ['' => 'All events'];
        foreach ($this->events as $eventName) {
            $options[$eventName] = ucfirst($eventName);
        }

        return $options;
    }

    #[Computed]
    public function filteredActivities(): array
    {
        $result = $this->activityData;

        if ($this->logName) {
            $result = array_filter($result, fn ($a) => $a['log_name'] === $this->logName);
        }

        if ($this->event) {
            $result = array_filter($result, fn ($a) => $a['event'] === $this->event);
        }

        if ($this->search) {
            $search = strtolower($this->search);
            $result = array_filter($result, fn ($a) => str_contains(strtolower($a['description']), $search));
        }

        return array_values($result);
    }

    #[Computed]
    public function activityItems(): array
    {
        return array_map(function ($activity) {
            $item = [
                'description' => $activity['description'],
                'event' => $activity['event'],
                'timestamp' => $activity['timestamp'],
            ];

            if ($activity['causer_name']) {
                $item['actor'] = [
                    'name' => $activity['causer_name'],
                    'initials' => substr($activity['causer_name'], 0, 1),
                ];
            }

            if ($activity['subject_type']) {
                $item['subject'] = [
                    'type' => $activity['subject_type'],
                    'name' => $activity['subject_name'],
                ];
            }

            if ($activity['changes']) {
                $item['changes'] = $activity['changes'];
            }

            return $item;
        }, $this->filteredActivities);
    }

    public function render(): string
    {
        return <<<'HTML'
            <div>
                <input wire:model="search" placeholder="Search..." />
                <span>Results: {{ count($this->filteredActivities) }}</span>
                <span>Log: {{ $logName ?: 'all' }}</span>
                <span>Event: {{ $event ?: 'all' }}</span>
                @foreach($this->activityItems as $item)
                    <div class="activity-item">{{ $item['description'] }}</div>
                @endforeach
            </div>
        HTML;
    }
}

// =============================================================================
// Initial State Tests
// =============================================================================

describe('ActivityLog initial state', function () {
    it('starts with empty filters', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSet('search', '')
            ->assertSet('logName', '')
            ->assertSet('event', '');
    });

    it('loads activity data on mount', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSet('activityData', fn ($data) => count($data) === 5);
    });

    it('shows all activities initially', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSee('Results: 5');
    });
});

// =============================================================================
// Search Filter Tests
// =============================================================================

describe('ActivityLog search filtering', function () {
    it('filters by search term in description', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('search', 'workspace')
            ->assertSee('Results: 2')
            ->assertSee('Created new workspace')
            ->assertSee('Updated workspace settings');
    });

    it('search is case-insensitive', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('search', 'WORKSPACE')
            ->assertSee('Results: 2');
    });

    it('returns no results for non-matching search', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('search', 'nonexistent-term')
            ->assertSee('Results: 0');
    });

    it('shows all results when search is cleared', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('search', 'workspace')
            ->assertSee('Results: 2')
            ->set('search', '')
            ->assertSee('Results: 5');
    });

    it('filters by partial description match', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('search', 'user')
            ->assertSee('Results: 2');
    });
});

// =============================================================================
// Log Name Filter Tests
// =============================================================================

describe('ActivityLog log name filtering', function () {
    it('filters by workspace log', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('logName', 'workspace')
            ->assertSee('Results: 2')
            ->assertSee('Log: workspace');
    });

    it('filters by user log', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('logName', 'user')
            ->assertSee('Results: 2');
    });

    it('filters by service log', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('logName', 'service')
            ->assertSee('Results: 1');
    });

    it('shows all logs when filter is empty', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('logName', '')
            ->assertSee('Results: 5')
            ->assertSee('Log: all');
    });

    it('provides log name options with All logs default', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSet(fn ($component) => $component->logNameOptions[''] === 'All logs'
                && array_key_exists('workspace', $component->logNameOptions)
                && array_key_exists('user', $component->logNameOptions)
                && array_key_exists('service', $component->logNameOptions));
    });

    it('returns distinct log names', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSet(fn ($component) => count($component->logNames) === 3);
    });
});

// =============================================================================
// Event Filter Tests
// =============================================================================

describe('ActivityLog event filtering', function () {
    it('filters by created events', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('event', 'created')
            ->assertSee('Results: 2')
            ->assertSee('Event: created');
    });

    it('filters by updated events', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('event', 'updated')
            ->assertSee('Results: 2');
    });

    it('filters by deleted events', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('event', 'deleted')
            ->assertSee('Results: 1');
    });

    it('shows all events when filter is empty', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('event', '')
            ->assertSee('Results: 5')
            ->assertSee('Event: all');
    });

    it('provides event options with All events default', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSet(fn ($component) => $component->eventOptions[''] === 'All events'
                && array_key_exists('created', $component->eventOptions)
                && array_key_exists('updated', $component->eventOptions)
                && array_key_exists('deleted', $component->eventOptions));
    });

    it('returns distinct event types', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSet(fn ($component) => count($component->events) === 3);
    });
});

// =============================================================================
// Combined Filter Tests
// =============================================================================

describe('ActivityLog combined filters', function () {
    it('combines log name and event filters', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('logName', 'workspace')
            ->set('event', 'created')
            ->assertSee('Results: 1')
            ->assertSee('Created new workspace');
    });

    it('combines search with log name filter', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('search', 'settings')
            ->set('logName', 'workspace')
            ->assertSee('Results: 1')
            ->assertSee('Updated workspace settings');
    });

    it('combines all three filters', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('search', 'workspace')
            ->set('logName', 'workspace')
            ->set('event', 'updated')
            ->assertSee('Results: 1');
    });

    it('returns empty when combined filters exclude everything', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('logName', 'service')
            ->set('event', 'created')
            ->assertSee('Results: 0');
    });
});

// =============================================================================
// Clear Filters Tests
// =============================================================================

describe('ActivityLog clear filters', function () {
    it('clears all filters at once', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('search', 'workspace')
            ->set('logName', 'workspace')
            ->set('event', 'created')
            ->call('clearFilters')
            ->assertSet('search', '')
            ->assertSet('logName', '')
            ->assertSet('event', '')
            ->assertSee('Results: 5');
    });

    it('resets page number when clearing filters', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->set('page', 3)
            ->call('clearFilters')
            ->assertSet('page', 1);
    });
});

// =============================================================================
// Activity Item Mapping Tests
// =============================================================================

describe('ActivityLog item mapping', function () {
    it('maps activity items with actor information', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSet(fn ($component) => $component->activityItems[0]['actor']['name'] === 'John Doe'
                && $component->activityItems[0]['actor']['initials'] === 'J');
    });

    it('maps activity items with subject information', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSet(fn ($component) => $component->activityItems[0]['subject']['type'] === 'Workspace'
                && $component->activityItems[0]['subject']['name'] === 'My Project');
    });

    it('includes changes diff when present', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSet(fn ($component) => isset($component->activityItems[1]['changes'])
                && $component->activityItems[1]['changes']['old']['name'] === 'Jane'
                && $component->activityItems[1]['changes']['new']['name'] === 'Jane Smith');
    });

    it('omits changes when not present', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSet(fn ($component) => ! isset($component->activityItems[0]['changes']));
    });

    it('includes event type in each item', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSet(fn ($component) => $component->activityItems[0]['event'] === 'created'
                && $component->activityItems[1]['event'] === 'updated'
                && $component->activityItems[2]['event'] === 'deleted');
    });

    it('includes timestamp in each item', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSet(fn ($component) => $component->activityItems[0]['timestamp'] === '2026-03-20 10:00:00');
    });

    it('renders activity descriptions in view', function () {
        Livewire::test(ActivityLogModalDouble::class)
            ->assertSee('Created new workspace')
            ->assertSee('Updated user profile')
            ->assertSee('Deleted old service');
    });
});