<?php

namespace App\Livewire\Ideas;

use App\Models\Idea;
use App\Models\Project;
use Livewire\Attributes\Layout;
use Livewire\Component;

#[Layout('components.layouts.app')]
class Index extends Component
{
    public bool $showForm = false;

    public ?int $editingId = null;

    public string $title = '';

    public ?string $description = null;

    public string $status = 'new';

    public ?int $projectId = null;

    public int $priority = 0;

    public ?string $category = null;

    public ?string $tags = null;

    public string $search = '';

    public string $statusFilter = '';

    public string $categoryFilter = '';

    public ?int $projectFilter = null;

    public bool $unlinkedFilter = false;

    public function render()
    {
        $query = Idea::with(['project', 'user']);

        if ($this->search) {
            $query->search($this->search);
        }

        if ($this->statusFilter) {
            $query->where('status', $this->statusFilter);
        }

        if ($this->categoryFilter) {
            $query->where('category', $this->categoryFilter);
        }

        if ($this->projectFilter) {
            $query->where('project_id', $this->projectFilter);
        }

        if ($this->unlinkedFilter) {
            $query->unlinked();
        }

        $ideas = $query->orderBy('priority', 'desc')->orderBy('created_at', 'desc')->get();

        return view('livewire.ideas.index', [
            'ideas' => $ideas,
            'projects' => Project::orderBy('name')->get(),
            'statuses' => Idea::STATUSES,
            'categories' => Idea::CATEGORIES,
            'totalIdeas' => Idea::count(),
            'newIdeas' => Idea::new()->count(),
            'consideredIdeas' => Idea::considered()->count(),
            'plannedIdeas' => Idea::planned()->count(),
            'implementedIdeas' => Idea::implemented()->count(),
        ]);
    }

    public function create(): void
    {
        $this->resetForm();
        // Pre-select the filtered project if one is selected
        if ($this->projectFilter) {
            $this->projectId = $this->projectFilter;
        }
        $this->showForm = true;
    }

    public function edit(int $id): void
    {
        $idea = Idea::findOrFail($id);
        $this->editingId = $idea->id;
        $this->title = $idea->title;
        $this->description = $idea->description;
        $this->status = $idea->status;
        $this->projectId = $idea->project_id;
        $this->priority = $idea->priority;
        $this->category = $idea->category;
        $this->tags = $idea->tags;
        $this->showForm = true;
    }

    public function save(): void
    {
        $validated = $this->validate([
            'title' => ['required', 'string', 'max:255'],
            'description' => ['nullable', 'string'],
            'status' => ['required', 'string', 'in:' . implode(',', Idea::STATUSES)],
            'projectId' => ['nullable', 'integer', 'exists:projects,id'],
            'priority' => ['integer', 'min:0', 'max:10'],
            'category' => ['nullable', 'string', 'in:' . implode(',', Idea::CATEGORIES)],
            'tags' => ['nullable', 'string', 'max:255'],
        ]);

        Idea::updateOrCreate(['id' => $this->editingId], [
            'title' => $validated['title'],
            'description' => $validated['description'],
            'status' => $validated['status'],
            'project_id' => $validated['projectId'],
            'priority' => $validated['priority'],
            'category' => $validated['category'],
            'tags' => $validated['tags'],
            'user_id' => auth()->id(),
        ]);

        $this->resetForm();
        $this->showForm = false;
    }

    public function delete(int $id): void
    {
        Idea::findOrFail($id)->delete();
    }

    public function changeStatus(int $id, string $newStatus): void
    {
        if (!in_array($newStatus, Idea::STATUSES)) {
            return;
        }

        Idea::findOrFail($id)->update(['status' => $newStatus]);
    }

    public function linkToProject(int $id, int $projectId): void
    {
        Idea::findOrFail($id)->update(['project_id' => $projectId]);
    }

    public function unlinkFromProject(int $id): void
    {
        Idea::findOrFail($id)->update(['project_id' => null]);
    }

    public function clearFilters(): void
    {
        $this->search = '';
        $this->statusFilter = '';
        $this->categoryFilter = '';
        $this->projectFilter = null;
        $this->unlinkedFilter = false;
    }

    public function resetForm(): void
    {
        $this->editingId = null;
        $this->title = '';
        $this->description = null;
        $this->status = 'new';
        $this->projectId = null;
        $this->priority = 0;
        $this->category = null;
        $this->tags = null;
        $this->resetValidation();
    }

    public function getStatusColor(string $status): string
    {
        return match ($status) {
            'new' => 'bg-blue-100 text-blue-800',
            'considered' => 'bg-yellow-100 text-yellow-800',
            'planned' => 'bg-purple-100 text-purple-800',
            'rejected' => 'bg-red-100 text-red-800',
            'implemented' => 'bg-green-100 text-green-800',
            default => 'bg-gray-100 text-gray-800',
        };
    }

    public function getCategoryColor(string $category): string
    {
        return match ($category) {
            'feature' => 'bg-blue-100 text-blue-800',
            'improvement' => 'bg-purple-100 text-purple-800',
            'bugfix' => 'bg-red-100 text-red-800',
            'research' => 'bg-yellow-100 text-yellow-800',
            'other' => 'bg-gray-100 text-gray-800',
            default => 'bg-gray-100 text-gray-800',
        };
    }

    public function getPriorityLabel(int $priority): string
    {
        if ($priority === 0) return 'None';
        if ($priority <= 3) return 'Low';
        if ($priority <= 6) return 'Medium';
        if ($priority <= 8) return 'High';
        return 'Critical';
    }
}