<?php

namespace App\Livewire\VideoProjects;

use App\Jobs\RunWorkflowStepJob;
use App\Models\VideoProject;
use App\Models\WorkflowStep;
use App\Models\WorkflowTemplate;
use App\Support\VideoWorkflow\StepHandlers\StepHandlerManager;
use App\Support\VideoWorkflow\WorkflowEngine;
use Livewire\Attributes\Layout;
use Livewire\Component;

#[Layout('components.layouts.app')]
class Show extends Component
{
    public VideoProject $videoProject;

    public string $workflowTemplateId = '';

    public ?string $notice = null;

    public function mount(VideoProject $videoProject): void
    {
        $this->videoProject = $videoProject;
    }

    public function render()
    {
        $this->videoProject->refresh();

        return view('livewire.video-projects.show', [
            'steps' => $this->videoProject->steps()->with('assets')->get(),
            'assets' => $this->videoProject->assets()->orderByDesc('created_at')->get(),
            'templates' => WorkflowTemplate::orderBy('name')->get(),
            'hasActiveStep' => $this->videoProject->steps()
                ->whereIn('status', ['pending', 'in_progress'])
                ->exists(),
        ]);
    }

    public function startWithTemplate(WorkflowEngine $engine): void
    {
        if (! $this->workflowTemplateId) {
            $this->notice = 'Pick a template first.';

            return;
        }

        $template = WorkflowTemplate::findOrFail($this->workflowTemplateId);
        $engine->startFromTemplate($this->videoProject, $template);

        $this->runCurrentStepIfHandled($engine);
    }

    public function startDefault(WorkflowEngine $engine): void
    {
        $engine->start($this->videoProject, [
            ['type' => 'script_generation', 'requires_approval' => true],
            ['type' => 'tts_voiceover', 'requires_approval' => true],
            ['type' => 'storyboard', 'requires_approval' => true],
            ['type' => 'video_generation', 'requires_approval' => true],
            ['type' => 'video_editing', 'requires_approval' => true],
            ['type' => 'thumbnail_generation', 'requires_approval' => true],
            ['type' => 'metadata_generation', 'requires_approval' => true],
            ['type' => 'youtube_publish', 'requires_approval' => true],
        ]);

        $this->runCurrentStepIfHandled($engine);
    }

    public function runStep(int $stepId): void
    {
        RunWorkflowStepJob::dispatch($stepId);
        $this->notice = 'Step queued to run.';
    }

    public function approveStep(int $stepId, WorkflowEngine $engine): void
    {
        $engine->approveStep(WorkflowStep::findOrFail($stepId));
        $this->runCurrentStepIfHandled($engine);
    }

    public function rejectStep(int $stepId, WorkflowEngine $engine): void
    {
        $engine->rejectStep(WorkflowStep::findOrFail($stepId));
    }

    public function retryStep(int $stepId, WorkflowEngine $engine): void
    {
        $step = $engine->retryStep(WorkflowStep::findOrFail($stepId));
        RunWorkflowStepJob::dispatch($step->id);
    }

    public function skipStep(int $stepId, WorkflowEngine $engine): void
    {
        $engine->skipStep(WorkflowStep::findOrFail($stepId));
        $this->runCurrentStepIfHandled($engine);
    }

    private function runCurrentStepIfHandled(WorkflowEngine $engine): void
    {
        $current = $engine->currentStep($this->videoProject->fresh());

        if ($current && $current->status === 'in_progress' && app(StepHandlerManager::class)->resolve($current->type)) {
            RunWorkflowStepJob::dispatch($current->id);
        }
    }
}