<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Admin\Concerns\ResolvesActiveChannel;
use App\Http\Controllers\Controller;
use App\Models\TaxonomyTerm;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Str;
use Illuminate\View\View;

class TaxonomyTermController extends Controller
{
    use ResolvesActiveChannel;

    public function index(): View
    {
        $channel = $this->activeChannel();
        $terms = TaxonomyTerm::withCount('publications')
            ->where('channel_id', $channel->id)
            ->orderBy('title')
            ->get();
        return view('admin::taxonomy.index', compact('channel', 'terms'));
    }

    public function create(): View
    {
        $channel = $this->activeChannel();
        $term = new TaxonomyTerm();
        return view('admin::taxonomy.form', compact('channel', 'term'));
    }

    public function store(Request $request): RedirectResponse
    {
        $channel = $this->activeChannel();

        $request->validate([
            'title' => ['required', 'string', 'max:255'],
        ]);

        $slug = Str::slug($request->title);

        $exists = TaxonomyTerm::where('channel_id', $channel->id)->where('slug', $slug)->exists();
        if ($exists) {
            return back()->withErrors(['title' => 'A term with this slug already exists in this channel.'])->withInput();
        }

        TaxonomyTerm::create([
            'channel_id' => $channel->id,
            'title'      => $request->title,
            'slug'       => $slug,
        ]);

        return redirect()->route('admin.taxonomy.index')
            ->with('success', "Term \"{$request->title}\" created.");
    }

    public function edit(TaxonomyTerm $term): View
    {
        $channel = $this->activeChannel();
        abort_if($term->channel_id !== $channel->id, 403);
        return view('admin::taxonomy.form', compact('channel', 'term'));
    }

    public function update(Request $request, TaxonomyTerm $term): RedirectResponse
    {
        $channel = $this->activeChannel();
        abort_if($term->channel_id !== $channel->id, 403);

        $request->validate([
            'title' => ['required', 'string', 'max:255'],
        ]);

        $slug = Str::slug($request->title);

        $term->update(['title' => $request->title, 'slug' => $slug]);

        return redirect()->route('admin.taxonomy.index')
            ->with('success', "Term \"{$term->title}\" updated.");
    }

    public function destroy(TaxonomyTerm $term): RedirectResponse
    {
        $channel = $this->activeChannel();
        abort_if($term->channel_id !== $channel->id, 403);
        $title = $term->title;
        $term->delete();
        return redirect()->route('admin.taxonomy.index')
            ->with('success', "Term \"{$title}\" deleted.");
    }
}