omdb_search.php

<?php
if ($_REQUEST["user_name"] == "slackbot") {
    exit;
}

$cache_file = $_REQUEST["token"] . '.txt';

if (!file_exists($cache_file)) {
    // This is a new conversation. Start with search
    $json_str = file_get_contents("http://www.omdbapi.com/?s=" . urlencode($_REQUEST["text"]) . "&r=json");
    file_put_contents($cache_file, $json_str);

    $movies_list_str = "";
    $json = json_decode($json_str, true);
    for($i=0; $i<count($json['Search']); $i++) {
        $movies_list_str = $movies_list_str . ($i+1) . " " . $json['Search'][$i]['Title'] . "(" . $json['Search'][$i]['Year'] . ")\n";
    }
?>
{
"text": "I have found the following movies matching your search. Please respond with a number to learn more about a movie.\n <?= $movies_list_str ?>",
"mrkdwn": true
}
<?php
} else {
    $cache_content = file_get_contents($cache_file);
    if (strlen($cache_content) < 10) {
        // this is IMDB ID
        $command = strtolower($_REQUEST["text"]);
        if ($command == "detail") {
            $imdb_url = "Follow this link for detail: http://www.imdb.com/title/" . $cache_content;
        } elseif ($command == "showtime" || $command == "showtimes") {
            $imdb_url = "Follow this link for showtimes: http://www.imdb.com/showtimes/title/" . $cache_content;
        } elseif ($command == "cast") {
            $imdb_url = "Follow this link for full cast and crew: http://www.imdb.com/title/" . $cache_content . "/fullcredits";
        } elseif ($command == "trivia") {
            $imdb_url = "Follow this link for trivia: http://www.imdb.com/title/" . $cache_content . "/trivia";
        } elseif ($command == "quotes") {
            $imdb_url = "Follow this link for quotes: http://www.imdb.com/title/" . $cache_content . "/quotes";
        } elseif ($command == "done") {
?>
{
"text": "Bye <?= $_REQUEST["user_name"] ?>. See you next time!",
"mrkdwn": true
}
<?php
            unlink($cache_file);
            exit;
        } else {
?>
{
"text": "Sorry, I did not understand. Please respond with one of the following: _detail_, _showtime_, _cast_, _trivia_, _quotes_ or _done_",
"mrkdwn": true
}
<?php
            exit;
        }
?>
{
"text": "<?= $imdb_url ?>",
"mrkdwn": true
}
<?php
    } else {
        // This is number selector on JSON array
        $json = json_decode($cache_content, true);

        $num = intval($_REQUEST["text"]);
        if ($num < 1 || $num > count($json['Search'])) {
?>
{
"text": "Sorry, I did not understand. Please respond with a number in the list",
"mrkdwn": true
}
<?php
            exit;
        } else {
            $movie = $json['Search'][$num - 1];
?>
{
"text": "You selected *<?= $movie['Title'] ?>* (<?= $movie['Year'] ?>) \nPlease respond with one of the following: _detail_, _showtime_, _cast_, _trivia_, _quotes_ or _done_ for more",
"mrkdwn": true
}
<?php
            file_put_contents($cache_file, $movie['imdbID']);
            exit;
        }
    }
}
?>