<?php

namespace App\Livewire;

use Livewire\Component;
use Livewire\Attributes\Layout;
use App\Models\Project;
use App\Models\Phase;
use App\Models\Feature;
use App\Models\Inspection;
use App\Models\Issue;
use Illuminate\Support\Facades\Auth;

#[Layout('layouts.app')]
class ProjectDashboard extends Component
{
    public Project $project;

    // Computed stats (cached as properties after mount)
    public array  $stats           = [];
    public $phases;
    public $recentInspections;
    public $recentIssues;
    public $teamMembers;
    public $companies;

    public function mount(Project $project): void
    {
        $this->project = $project;
        $this->checkAccess();
        $this->loadData();
    }

    private function checkAccess(): void
    {
        $user = Auth::user();
        if ($user->hasRole('Admin')) return;
        if (!$this->project->users()->where('user_id', $user->id)->exists()) abort(403);
    }

    private function loadData(): void
    {
        $pid = $this->project->id;

        $this->phases = Phase::where('project_id', $pid)
            ->withCount('layers')
            ->with(['layers' => fn($q) => $q->withCount('features')])
            ->orderBy('order')
            ->get();

        $totalFeatures = Feature::whereHas('layer.phase', fn($q) => $q->where('project_id', $pid))->count();
        $completedFeatures = Feature::whereHas('layer.phase', fn($q) => $q->where('project_id', $pid))
            ->where('status', 'completed')->count();
        $verifiedFeatures = Feature::whereHas('layer.phase', fn($q) => $q->where('project_id', $pid))
            ->where('status', 'verified')->count();

        $openIssues    = Issue::where('project_id', $pid)->where('status', 'open')->count();
        $closedIssues  = Issue::where('project_id', $pid)->where('status', 'closed')->count();
        $criticalIssues = Issue::where('project_id', $pid)->where('status', 'open')->where('priority', 'critical')->count();

        $totalInspections     = Inspection::where('project_id', $pid)->count();
        $passedInspections    = Inspection::where('project_id', $pid)->where('result', 'pass')->count();
        $failedInspections    = Inspection::where('project_id', $pid)->where('result', 'fail')->count();

        $globalProgress = $this->phases->avg('progress_percent') ?? 0;

        $delayedPhases = $this->phases->filter(fn($p) =>
            $p->planned_end && $p->planned_end < now() && $p->progress_percent < 100
        )->count();

        $this->stats = [
            'global_progress'     => round($globalProgress),
            'total_phases'        => $this->phases->count(),
            'delayed_phases'      => $delayedPhases,
            'total_features'      => $totalFeatures,
            'completed_features'  => $completedFeatures,
            'verified_features'   => $verifiedFeatures,
            'open_issues'         => $openIssues,
            'closed_issues'       => $closedIssues,
            'critical_issues'     => $criticalIssues,
            'total_inspections'   => $totalInspections,
            'passed_inspections'  => $passedInspections,
            'failed_inspections'  => $failedInspections,
        ];

        $this->recentInspections = Inspection::where('project_id', $pid)
            ->with(['feature', 'template', 'user'])
            ->latest()->take(6)->get();

        $this->recentIssues = Issue::where('project_id', $pid)
            ->with(['feature', 'reporter'])
            ->where('status', '!=', 'closed')
            ->orderByRaw("FIELD(priority,'critical','high','medium','low')")
            ->take(6)->get();

        $this->teamMembers = $this->project->users()->with('roles')->get();

        $this->companies = $this->project->companies()->get();
    }

    public function render()
    {
        return view('livewire.projects.project-dashboard', [
            'project' => $this->project,
        ]);
    }
}