<?php

require_once(__DIR__ . "/File.php");
require_once(__DIR__ . "/HTTPRequest.php");


class Archive {

	static function tasks($identifier = null) {
		$req = new HTTPRequest();

		if ($identifier) {
			$resp = $req->get("https://archive.org/services/tasks.php?summary=1&catalog=1&identifier=" . $identifier, [
				"Authorization: LOW " . Config::get("ARCHIVE_KEY") . ":" . Config::get("ARCHIVE_SECRET")
			]);
		} else {
			$resp = $req->get("https://archive.org/services/tasks.php?summary=1&catalog=1", [
				"Authorization: LOW " . Config::get("ARCHIVE_KEY") . ":" . Config::get("ARCHIVE_SECRET")
			]);
		}

		if ($resp == 200) {
			$j = json_decode($req->body);
			if ($j) {
				return $j;
			}
		}

		throw new Exception($req->body);
	}

	static function upload(File $file, $identifier, $filename, $metadata = [], ?Callable $callback = null) {

		$headers = [];
		$headers[] = "Authorization: LOW " . Config::get("ARCHIVE_KEY") . ":" . Config::get("ARCHIVE_SECRET");
		$headers[] = "x-archive-auto-make-bucket:1";
		$headers[] = "x-archive-queue-derive:0";
		$headers[] = "x-archive-interactive-priority:1";
		
		$metadata["mediatype"] = "texts";
		if (Config::get("SANDBOX")) {
			$metadata["collection"] = "test_collection";	
		} else {
			$metadata["collection"] = "opensource";
		}

		foreach ($metadata as $k=>$v) {
			if (is_array($v)) {
				$i = 1;
				foreach ($v as $q) {
					$headers[] = sprintf("x-archive-meta-%02d-%s:%s", $i, str_replace("_", "--", $k), $q);
					$i++;
				}
			} else {
				$headers[] = sprintf("x-archive-meta-%s:%s", str_replace("_", "--", $k), $v);
			}
		}

		$headers[] = "content-type:application/pdf";


		$req = new HTTPRequest();
		if ($callback) {
			$req->setCallback($callback);
		}
		$resp = $req->put("https://s3.us.archive.org/" . $identifier . "/" . $filename, $file->path(), $headers);

		if ($resp == 200) {
			return true;
		}
		throw new Exception($resp . ": " . $req->body);
	}

	static function metadata($identifier) {

		$req = new HTTPRequest();

		$resp = $req->get("https://archive.org/metadata/" . $identifier, [
			"Authorization: LOW " . Config::get("ARCHIVE_KEY") . ":" . Config::get("ARCHIVE_SECRET")
		]);

		if ($resp == 200) {
			$j = json_decode($req->body);
			if ($j) {
				return $j;
			}
		}

		throw new Exception($resp . ": " . $req->body);
	}

	static function derive($identifier) {
		$req = new HTTPRequest();

		$data = [
			"identifier" => $identifier,
			"cmd" => "derive.php",
			"args" => [],
			"priority" => 0
		];

		$resp = $req->post("https://archive.org/services/tasks.php", json_encode($data), [
			"Authorization: LOW " . Config::get("ARCHIVE_KEY") . ":" . Config::get("ARCHIVE_SECRET"),
			"content-type:application/json",
		]);

		if ($resp == 200) {
			return true;
		}

		throw new Exception($resp . ": " . $req->body);

	}

}