<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Str;
use App\Media;
use App\Profile;
use App\Story;
use App\StoryView;
use App\Services\StoryService;
use Cache, Storage;
use App\Services\FollowerService;


class StoryController extends Controller
{

	public function construct()
	{
		$this->middleware('auth');
	}

	public function apiV1Add(Request $request)
	{
		abort_if(!config('instance.stories.enabled') || !$request->user(), 404);

		$this->validate($request, [
			'file.*' => function() {
				return [
					'required',
					'mimes:image/jpeg,image/png',
					'max:' . config('pixelfed.max_photo_size'),
				];
			},
		]);

		$user = $request->user();

        if(Story::whereProfileId($user->profile_id)->where('expires_at', '>', now())->count() >= Story::MAX_PER_DAY) {
        	abort(400, 'You have reached your limit for new Stories today.');
        }

        $story = new Story();
        $story->duration = 3;
		$story->profile_id = $user->profile_id;
		$story->expires_at = now()->addHours(24);
		$story->save();

        $monthHash = substr(hash('sha1', date('Y').date('m')), 0, 12);
        $rid = Str::random(6).'.'.Str::random(9);

        $photo = $request->file('file');

        $mimes = explode(',', config('pixelfed.media_types'));
        if(in_array($photo->getMimeType(), [
        	'image/jpeg',
        	'image/png'
        ]) == false) {
        	abort(400, 'Invalid media type');
            return;
        }

		$storagePath = "public/_esm.t1/{$monthHash}/{$story->id}/{$rid}";
		$path = $photo->store($storagePath);

		$story->path = $path;
		$story->local = true;
		$story->expires_at = now()->addHours(24);
		$story->save();

		return [
			'code' => 200,
			'msg'  => 'Successfully added',
			'media_url' => url(Storage::url($story->path))
		];
	}

	public function apiV1Delete(Request $request, $id)
	{
		abort_if(!config('instance.stories.enabled') || !$request->user(), 404);

		$user = $request->user();

		$story = Story::whereProfileId($user->profile_id)
			->findOrFail($id);

		if(Storage::exists($story->path) == true) {
			Storage::delete($story->path);
		}

		$story->delete();

		return [
			'code' => 200,
			'msg'  => 'Successfully deleted'
		];
	}

	public function apiV1Recent(Request $request)
	{
		abort_if(!config('instance.stories.enabled') || !$request->user(), 404);

		$profile = $request->user()->profile;
		$following = FollowerService::build()->profile($profile)->following();

		$stories = Story::with('profile')
			->whereIn('profile_id', $following)
			->groupBy(['id', 'profile_id'])
			->where('expires_at', '>', now())
			->orderByDesc('expires_at')
			->take(9)
			->get()
			->map(function($s, $k) {
				return [
					'id' => (string) $s->id,
					'photo' => $s->profile->avatarUrl(),
					'name'	=> $s->profile->username,
					'link'	=> $s->profile->url(),
					'lastUpdated' => (int) $s->created_at->format('U'),
					'seen' => $s->seen(),
					'items' => [],
					'pid' => (string) $s->profile->id
				];
		});

		return response()->json($stories, 200, [], JSON_PRETTY_PRINT|JSON_UNESCAPED_SLASHES);
	}

	public function apiV1Fetch(Request $request, $id)
	{
		abort_if(!config('instance.stories.enabled') || !$request->user(), 404);

		$profile = $request->user()->profile;
		if($id == $profile->id) {
			$publicOnly = true;
		} else {
			$following = FollowerService::build()->profile($profile)->following();
			$publicOnly = in_array($id, $following);
		}

		$stories = Story::whereProfileId($id)
			->orderBy('expires_at', 'desc')
			->where('expires_at', '>', now())
			->when(!$publicOnly, function($query, $publicOnly) {
				return $query->wherePublic(true);
			})
			->get()
			->map(function($s, $k) {
				return [
					'id' => (string) $s->id,
					'type' => 'photo',
					'length' => 3,
					'src' => url(Storage::url($s->path)),
					'preview' => null,
					'link' => null,
					'linkText' => null,
					'time' => $s->created_at->format('U'),
					'expires_at' => (int)  $s->expires_at->format('U'),
					'seen' => $s->seen()
				];
			})->toArray();
		return response()->json($stories, 200, [], JSON_PRETTY_PRINT|JSON_UNESCAPED_SLASHES);
	}

	public function apiV1Profile(Request $request, $id)
	{
		abort_if(!config('instance.stories.enabled') || !$request->user(), 404);

		$authed = $request->user()->profile;
		$profile = Profile::findOrFail($id);
		if($id == $authed->id) {
			$publicOnly = true;
		} else {
			$following = FollowerService::build()->profile($authed)->following();
			$publicOnly = in_array($id, $following);
		}

		$stories = Story::whereProfileId($profile->id)
			->orderBy('expires_at')
			->where('expires_at', '>', now())
			->when(!$publicOnly, function($query, $publicOnly) {
				return $query->wherePublic(true);
			})
			->get()
			->map(function($s, $k) {
				return [
					'id' => $s->id,
					'type' => 'photo',
					'length' => 3,
					'src' => url(Storage::url($s->path)),
					'preview' => null,
					'link' => null,
					'linkText' => null,
					'time' => $s->created_at->format('U'),
					'expires_at' => (int) $s->expires_at->format('U'),
					'seen' => $s->seen()
				];
			})->toArray();
		if(count($stories) == 0) {
			return [];
		}
		$cursor = count($stories) - 1;
		$stories = [[
			'id' => (string) $stories[$cursor]['id'],
			'photo' => $profile->avatarUrl(),
			'name'	=> $profile->username,
			'link'	=> $profile->url(),
			'lastUpdated' => (int) now()->format('U'),
			'seen' => null,
			'items' => $stories,
			'pid' => (string) $profile->id
		]];
		return response()->json($stories, 200, [], JSON_PRETTY_PRINT|JSON_UNESCAPED_SLASHES);
	}

	public function apiV1Viewed(Request $request)
	{
		abort_if(!config('instance.stories.enabled') || !$request->user(), 404);

		$this->validate($request, [
			'id'	=> 'required|integer|min:1|exists:stories',
		]);

		StoryView::firstOrCreate([
			'story_id' => $request->input('id'),
			'profile_id' => $request->user()->profile_id
		]);

		return ['code' => 200];
	}

	public function compose(Request $request)
	{
		abort_if(!config('instance.stories.enabled') || !$request->user(), 404);
		return view('stories.compose');
	}

	public function apiV1Exists(Request $request, $id)
	{
		abort_if(!config('instance.stories.enabled'), 404);

		$res = (bool) Story::whereProfileId($id)
			->where('expires_at', '>', now())
			->count();

		return response()->json($res);
	}

	public function iRedirect(Request $request)
	{
		$user = $request->user();
		abort_if(!$user, 404);
		$username = $user->username;
		return redirect("/stories/{$username}");
	}
}