<?php

/**
 * Contrôleur des points d'intérêt (POI) : création, affichage, API.
 */

require_once($config['models_folder']."d.poi.php");
require_once($config['models_folder']."d.comments.php");
require_once($config['models_folder']."d.users.php");
require_once($config['includes_folder']."poi_types.struct.php");

$head['css'] = "d.index.css;d.poi.css";

$poi = new Kabano\Poi();

// Routage des actions POI.
switch ($controller->splitted_url[1]) {
	case "new":
		if ($user->rankIsHigher("registered")) {
			if (isset($_POST['submit'])) {
				$poi->name = $_POST['name'];
				$poi->locale = $_POST['locale'];
				$poi->poi_type = $_POST['poi_type'];
				$poi->lat = $_POST['lat'];
				$poi->lon = $_POST['lon'];
				$poi->ele = empty($_POST['ele']) ? 0 : (int) $_POST['ele'];
				$poi->author = $user->id;
				$poi->source = "kab";
				$poi->is_commentable = 't';

				// Paramètres selon le type de POI.
				$definition = $poi_types[$poi->poi_type][5];
				$params = [];

				foreach ($definition as $key => $label) {

					if (isset($_POST[$key])) {
						$value = $_POST[$key];

						if (str_starts_with($key, 'b_')) {
							if ($value === "0" || $value === "1" || $value === "2") {
								$params[$key] = intval($value);
							} else {
								$params[$key] = -1; // non renseigné
							}
						}
						elseif (str_starts_with($key, 'n_')) {
							$params[$key] = is_numeric($value) ? (0 + $value) : null;
						}
						elseif (str_starts_with($key, 't_') || str_starts_with($key, 'l_')) {
							$params[$key] = trim($value);
						}
						else {
							$params[$key] = $value;
						}

					} else {
						// Champ absent → booléen = -1 (non renseigné)
						if (str_starts_with($key, 'b_')) {
							$params[$key] = -1;
						} else {
							$params[$key] = null;
						}
					}
				}

				$poi->parameters = json_encode($params, JSON_UNESCAPED_UNICODE);

				if (!$poi->checkPermalink($_POST['permalink'], 1)) {
					$poi->permalink = $_POST['permalink'];
					$poi->insert();
					header('Location: '.$config['rel_root_folder']."poi/".$poi->permalink);
				} else {
					$head['title'] = $poi->name;
					$error = "permalink";
				}
			} else {
				$head['title'] = "Nouvel hébergement";
			}

			$locales = new Kabano\Locales();
			$locales->getAll();

			$head['third'] = "leaflet/leaflet.js;leaflet-fullscreen/Leaflet.fullscreen.min.js;leaflet-easybutton/easy-button.js";
			$head['css'] .= ";../third/leaflet/leaflet.css;../third/leaflet-fullscreen/leaflet.fullscreen.css;../third/leaflet-easybutton/easy-button.css";
			$head['js'] = "d.poi_map.js";

			$poi->lat = "";
			$poi->lon = "";
			$poi->ele = "";

			$new = 1;
			include ($config['views_folder']."d.poi.edit.html");
			break;
		} else {
			$notfound = 1;
		}
		break;

	case "elevation_proxy":
		// Proxy vers l'API d'élévation.
		if (isset($_GET['location'])) {
			if (!preg_match('/^[0-9,\.\|\-]+$/', $_GET['location'])) {
				$notfound = 1;
				break;
			}
			$location = urlencode($_GET['location']);
			header("Content-Type: application/json;charset=utf-8");
			echo(file_get_contents("https://api.opentopodata.org/v1/mapzen?locations=".$location));
			break;
		} else {
			$notfound = 1;
		}
		break;

	case "api_bbox":
		// API JSON pour la liste des POIs (carte).
		header("Content-Type: application/json; charset=utf-8");

		$north = (float)$_GET['north'];
		$south = (float)$_GET['south'];
		$east  = (float)$_GET['east'];
		$west  = (float)$_GET['west'];

		$pois = new Kabano\Pois();
		$pois->listPoisBBOX(
			$north,
			$south,
			$east,
			$west,
			$user->rankIsHigher("premium") ? 1 : 0);

		$out = [];

		foreach ($pois->objs as $poi) {
			$out[] = [
				"id"		=> $poi->content_id,
				"name"	  => $poi->name,
				"lat"	   => floatval($poi->lat),
				"lon"	   => floatval($poi->lon),
				"type"	  => $poi->poi_type,
				"permalink" => $poi->permalink
			];
		}

		echo json_encode($out, JSON_UNESCAPED_UNICODE);
		break;

	case "tile":
		$z = intval($controller->splitted_url[2]);
		$x = intval($controller->splitted_url[3]);
		$y = intval(str_replace(".pbf", "", $controller->splitted_url[4]));

		$cacheRoot = $config['public_folder'] . '/cache/tiles';
		$cacheDir  = $cacheRoot . '/' . $z . '/' . $x;
		$cacheFile = $cacheDir . '/' . $y . '.pbf';

		// Cache hit
		if (is_file($cacheFile)) {
			header('Content-Type: application/x-protobuf');
			header('Cache-Control: public, max-age=31536000, immutable');
			header('X-Cache: HIT');
			readfile($cacheFile);
			exit;
		}

		// Création du dossier si nécessaire
		if (!is_dir($cacheDir)) {
			if (!@mkdir($cacheDir, 0777, true) && !is_dir($cacheDir)) {
				http_response_code(500);
				exit('Tile cache directory not writable');
			}
		}

		if (!is_writable($cacheDir)) {
			http_response_code(500);
			exit('Tile cache directory is not writable');
		}

		$pois = new Kabano\Pois();

		try {
			$tile = $pois->getVectorTile($z, $x, $y);
		} catch (Exception $e) {
			http_response_code(500);
			echo 'Tile generation failed: ' . $e->getMessage();
			exit;
		}

		$tmp = $cacheDir . '/' . uniqid('tile_', true) . '.pbf.tmp';

		if (file_put_contents($tmp, $tile) === false) {
			http_response_code(500);
			exit('Unable to write tile cache');
		}

		rename($tmp, $cacheFile);

		header('Content-Type: application/x-protobuf');
		header('Cache-Control: public, max-age=31536000, immutable');
		header('X-Cache: MISS');
		echo $tile;
		break;

	default:
		// Affichage / édition / suppression d’un POI
		if ($poi->checkPermalink($controller->splitted_url[1], $user->rankIsHigher("premium"))) {

			// Suppression
			if (isset($controller->splitted_url[2]) && $controller->splitted_url[2] == "delete" && $user->rankIsHigher("moderator")) {
				$poi->delete();
				header('Location: '.$config['rel_root_folder']."poi/".$poi->permalink);
			}

			// Restauration
			else if (isset($controller->splitted_url[2]) && $controller->splitted_url[2] == "restore" && $user->rankIsHigher("moderator")) {
				$poi->restore();
				header('Location: '.$config['rel_root_folder']."poi/".$poi->permalink);
			}

			// Édition
			else if (isset($controller->splitted_url[2]) && $controller->splitted_url[2] == "edit" && $user->rankIsHigher("moderator")) {
				if (isset($_POST['submit'])) {
					$poi->name = $_POST['name'];
					$poi->locale = $_POST['locale'];
					$poi->poi_type = $_POST['poi_type'];
					$poi->lat = $_POST['lat'];
					$poi->lon = $_POST['lon'];
					$poi->ele = empty($_POST['ele']) ? 0 : (int) $_POST['ele'];
					$poi->is_commentable = 't';

					$definition = $poi_types[$poi->poi_type][5];
					$params = [];

					foreach ($definition as $key => $label) {

						if (isset($_POST[$key])) {
							$value = $_POST[$key];

							if (str_starts_with($key, 'b_')) {
								if ($value === "0" || $value === "1" || $value === "2") {
									$params[$key] = intval($value);
								} else {
									$params[$key] = -1;
								}
							}
							elseif (str_starts_with($key, 'n_')) {
								$params[$key] = is_numeric($value) ? (0 + $value) : null;
							}
							elseif (str_starts_with($key, 't_') || str_starts_with($key, 'l_')) {
								$params[$key] = trim($value);
							}
							else {
								$params[$key] = $value;
							}

						} else {
							// Champ absent → booléen = -1 (non renseigné)
							if (str_starts_with($key, 'b_')) {
								$params[$key] = -1;
							} else {
								$params[$key] = null;
							}
						}
					}

					$poi->parameters = json_encode($params, JSON_UNESCAPED_UNICODE);
					$poi->update();
					header('Location: '.$config['rel_root_folder']."poi/".$poi->permalink);
				} else {
					$locales = new Kabano\Locales();
					$locales->getAll();

					$head['third'] = "leaflet/leaflet.js;leaflet-fullscreen/Leaflet.fullscreen.min.js;leaflet-easybutton/easy-button.js";
					$head['css'] .= ";../third/leaflet/leaflet.css;../third/leaflet-fullscreen/leaflet.fullscreen.css;../third/leaflet-easybutton/easy-button.css";
					$head['js'] = "d.poi_map.js";

					$head['title'] = $poi->name;
					include ($config['views_folder']."d.poi.edit.html");
				}
			}

			// Affichage
			else {
				// Historique
				if ($user->rankIsHigher("premium")) {
					$PoiHistory = new Kabano\Pois();
					$PoiHistory->getHistory($controller->splitted_url[1]);
				}
				if (isset($controller->splitted_url[2]) && is_numeric($controller->splitted_url[2])) {
					$poi->checkPermalink($controller->splitted_url[1], $user->rankIsHigher("premium"), $controller->splitted_url[2]);
				}

				// Création d’un commentaire
				if (isset($controller->splitted_url[2]) && $controller->splitted_url[2] == "new_comment") {
					if (isset($_POST['submit']) && $user->rankIsHigher("registered")) {
						$Comment = new Kabano\Comment();
						$Comment->locale = $user->locale;
						$Comment->author = $user->id;
						$Comment->content = $poi->content_id;
						$Comment->comment = $_POST['comment'];

						if (!empty($_FILES['photo']['tmp_name'])) {

							$tmp = $_FILES['photo']['tmp_name'];
							$info = getimagesize($tmp);
							if ($info === false) {
								die("Fichier non valide");
							}

							$mime = $info['mime'];
							switch ($mime) {
								case 'image/jpeg':
									$src = imagecreatefromjpeg($tmp);
									break;
								case 'image/png':
									$src = imagecreatefrompng($tmp);
									break;
								case 'image/webp':
									$src = imagecreatefromwebp($tmp);
									break;
								default:
									die("Format non supporté");
							}

							$width  = imagesx($src);
							$height = imagesy($src);

							// Taille max
							$max = 1500;

							$ratio = min($max / $width, $max / $height, 1);
							$newWidth  = (int)($width * $ratio);
							$newHeight = (int)($height * $ratio);
							$dst = imagecreatetruecolor($newWidth, $newHeight);
							imagecopyresampled($dst, $src, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);

							// --- Watermark ---
							$watermarkPath = $config['medias_folder'] . '/watermark.png';

							if (file_exists($watermarkPath)) {
								$wm = imagecreatefrompng($watermarkPath);

								imagealphablending($wm, true);
								imagesavealpha($wm, true);

								$wmWidth  = imagesx($wm);
								$wmHeight = imagesy($wm);

								$x = $newWidth - $wmWidth - 20;
								$y = 20;

								// Fusion
								imagecopy($dst, $wm, $x, $y, 0, 0, $wmWidth, $wmHeight);
							}

							$filename = uniqid('comment_') . '.jpg';
							$destination = $config['medias_folder'] . 'comment_photos/' . $filename;

							imagejpeg($dst, $destination, 70);

							$Comment->photo = $filename;
						}

						$Comment->insert();
					}
				}

				// Suppression d’un commentaire
				if (isset($controller->splitted_url[2]) && $controller->splitted_url[2] == "delete_comment") {
					if (isset($controller->splitted_url[3]) && is_numeric($controller->splitted_url[3])) {
						$Comment = new Kabano\Comment();
						if ($Comment->checkId($controller->splitted_url[3]))
							if ($user->rankIsHigher("moderator") || $user->id == $Comment->author)
								$Comment->delete();
					}
				}

				// Restauration d’un commentaire
				if (isset($controller->splitted_url[2]) && $controller->splitted_url[2] == "restore_comment") {
					if (isset($controller->splitted_url[3]) && is_numeric($controller->splitted_url[3])) {
						$Comment = new Kabano\Comment();
						if ($Comment->checkId($controller->splitted_url[3]))
							if ($user->rankIsHigher("moderator") || $user->id == $Comment->author)
								$Comment->restore();
					}
				}

				// Commentaires
				if ($poi->is_commentable == "t") {
					$poi_comments = new Kabano\Comments();
					$poi_comments->listComments($poi->content_id, ($user->rankIsHigher("premium")));

					foreach ($poi_comments->objs as $comment) {
						$comment->md2html();
						$comment->author_obj = new Kabano\User();
						$comment->author_obj->checkId($comment->author);
					}
				}

				// Auteur
				$tempUser = new Kabano\User();
				$tempUser->checkId($poi->author);
				$poi->author_name = $tempUser->name;
				unset($tempUser);

				$head['third'] = "leaflet/leaflet.js;leaflet-fullscreen/Leaflet.fullscreen.min.js;leaflet-easybutton/easy-button.js;simplelightbox/simple-lightbox.min.js";
				$head['css'] .= ";../third/leaflet/leaflet.css;../third/leaflet-fullscreen/leaflet.fullscreen.css;../third/leaflet-easybutton/easy-button.css;../third/simplelightbox/simple-lightbox.min.css";
				$head['js'] = "d.poi_map.js";

				$head['title'] = $poi->name;
				include ($config['views_folder']."d.poi.view.html");
			}
		} else {
			$notfound = 1;
		}
		break;
}