<?php
date_default_timezone_set('America/Los_Angeles');
# set default values
$status = "Unchecked";    
$message = "No attempt made yet.";
$button_text = "Pending";
$button_active = false;
$button_recent = false;
$button_action = "";
$button_result = "";
$http_host = $_SERVER['HTTP_HOST'];
$capture_duration = "3";
$elapsed_time = "0";

// Service Status API Checker
$status_API_URL = "http://172.17.0.1:5000/status";

// Use file_get_contents to fetch data from the API
try {
    $status_API_response = file_get_contents($status_API_URL);
} catch (Exception $e) {
    $status_API_response = '{ "Message": "unknowable", "Status": "unknowable" }';
}
// Check if the request was successful
if ($status_API_response === FALSE) {
    $data = "Failed to fetch data.";
} 

else {
    // Decode the JSON response (assuming the API returns JSON)
    $data = json_decode($status_API_response, true);
    if (isset($data['Message'])) {
        $message = $data['Message'];
    } else {
        $message = "No message found in the response.";
    }
    if (isset($data['Status'])) {
        $status = $data['Status'];
    } else {
        $status = "None";
    }
    if (isset($data['Elapsed_Time'])) {
        $elapsed_time = $data['Elapsed_Time'];
    } else {
        $elapsed_time = "-1";
    }
}

if (isset($_GET['new_duration'])){
    $button_recent = true;
    set_duration($_GET['new_duration']);
}

if (isset($_GET['action'])) {
    $button_recent = true;
    $button_result = service_manager($_GET['action']);
} 

function service_manager($submitted_status) {
    switch ($submitted_status) {
        case "stop":
            $apiUrl = "http://172.17.0.1:5000/stop";
            break;
        case "start":
            $apiUrl = "http://172.17.0.1:5000/start";
            break;
        default:
            $apiUrl = "http://172.17.0.1:5000/status";
            break;
    }
    // Use file_get_contents or cURL to fetch the API data
    try {
        $response = file_get_contents($apiUrl);
    } catch (Exception $e) {
        $response = '{ "Message": "unknowable", "Status": "unknowable" }';
    }
    if ($response === FALSE) {
        return "error";  // API error
    }

    // Decode the JSON response (assuming the API returns JSON)
    $data = json_decode($response, true);
    // Assuming the API returns a single word result (like "success", "failure", etc.)
    return isset($data['Status']) ? $data['Status'] : 'unknown';
}

switch ($status) {
    case "active":
        $button_text = "Stop Service";
        $button_active = true;
        break;
    case "inactive":
        $button_text = "Start Service";
        $button_active = true;
        break;
    case "failed":
        $button_text = "Start Service - Warning";
        $button_active = true;
        break;
    case "deactivating":
        $button_text = "Service Stopping...";
        $button_active = false;
        break;
    case "unknowable":
        $button_text = "Service Manager Down...";
        $button_active = false;
        break;
    default:
        $button_text = "Error, No Status";
        $button_active = false;
        $status="unknown";
        break;
}

if($button_active && !$button_recent){
    $action = "";
    if($status == "active"){
        $action = "stop";
    }
    else if($status == "inactive"){
        $action = "start";
    }
    else if($status == "failed"){
        $action = "start";
    }
    $button_action = ' onclick="location.href=\'/?action='.$action.'\'" ';
}

if($button_recent){
    /*
    $delay = 5; // Number of seconds before redirection
    echo "You will be redirected in $delay seconds.";
    header("Refresh: $delay; url=https://example.com");
    exit();
    */
    header("Location: http://".$http_host);
    exit(); // Always include exit() after headers are sent
}


function duration_button_handler($button_ID, $function) {
    // Duration Status API Checker
    $duration_API_URL = "http://172.17.0.1:5000/check_duration";

    // Use file_get_contents to fetch data from the API
    try {
        $duration_API_URL = file_get_contents($duration_API_URL);
    } catch (Exception $e) {
        $duration_API_URL = '{ "Message": "unknowable", "Status": "unknowable" }';
    }
    // Check if the request was successful
    if ($duration_API_URL === FALSE) {
        $raw_duration = "Failed to fetch data.";
    } 

    else {
        // Decode the JSON response (assuming the API returns JSON)
        $raw_duration = json_decode($duration_API_URL, true);
        if (isset($raw_duration['duration'])) {
            $capture_duration = $raw_duration['duration'];
        } else {
            $capture_duration = "3";
        }
    }
    

    // Service Status API Checker
    $status_API_URL = "http://172.17.0.1:5000/status";

    // Use file_get_contents to fetch data from the API
    try {
        $status_API_response = file_get_contents($status_API_URL);
    } catch (Exception $e) {
        $status_API_response = '{ "Message": "unknowable", "Status": "unknowable" }';
    }
    // Check if the request was successful
    if ($status_API_response === FALSE) {
        $data = "Failed to fetch data.";
    } 

    else {
        // Decode the JSON response (assuming the API returns JSON)
        $data = json_decode($status_API_response, true);
        if (isset($data['Message'])) {
            $message = $data['Message'];
        } else {
            $message = "No message found in the response.";
        }
        if (isset($data['Status'])) {
            $status = $data['Status'];
        } else {
            $status = "None";
        }
    }

    # function 0 - return class string
    # function 1 - return active string
    switch ($function) {
        case "0":
            # these classes are weird because reasons
            # specifically because the classes are named
            # based on service status
            # to decode this, inactive is green 
            # and deactivating is blue
            # so all the selectable buttons are blue and the active one is green
            if($button_ID == $capture_duration){
                return "inactive";
            }
            else {
                return "selected";
            }
            break;

        case "1":
            # this disables clicking the active button
            if($status == "active") {
                return " disabled";
            }
            else if($button_ID == $capture_duration){
                return " disabled";
            }
            else {
                return "";
            }
            break;
        
        default:
            break;    
    }

}

# this will be an integer from 0-3 for 
# 30min, 1hr, 2hr, and 6rh respectively
# info = { 
#     "duration": new_duration
# }
function set_duration($duration) {
    switch ($duration) {
        case "0":
            $apiUrl = "http://172.17.0.1:5000/store_duration?new_duration=0";
            break;
        case "1":
            $apiUrl = "http://172.17.0.1:5000/store_duration?new_duration=1";
            break;
        case "2":
            $apiUrl = "http://172.17.0.1:5000/store_duration?new_duration=2";
            break;
        case "3":
            $apiUrl = "http://172.17.0.1:5000/store_duration?new_duration=3";
            break;
        default:
            $apiUrl = "http://172.17.0.1:5000/status";
            break;
    }
    try {
        $response = file_get_contents($apiUrl);
    } catch (Exception $e) {
        $response = '{ "Message": "unknowable", "Status": "unknowable" }';
    }
    if ($response === FALSE) {
        return "error";  // API error
    }
}


?>

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>VCR Rip Controller</title>
    <link rel="stylesheet" href="styles.css">
</head>

<body>

    <div class="container">
        
        <div class="button-container">

        <button <?php echo $button_action; ?> class="<?php echo $status; ?>" id="phpButton"<?php if(!$button_active || $button_recent) {echo " disabled";} ?>>
                <?php echo $button_text; ?>
            </button>
            <p>

        </div>
        <p>

        <div class="button-container">
            
        <table>
            <tr>
                <td>
                    <button onclick="location.href='/?new_duration=3'" class="<?php echo duration_button_handler(3, 0); ?>" id="6_hour_button" <?php echo duration_button_handler(3, 1); ?>>6 Hours</button>
                </td>
                <td>
                    <button onclick="location.href='/?new_duration=2'" class="<?php echo duration_button_handler(2, 0); ?>" id="2_hour_button" <?php echo duration_button_handler(2, 1); ?>>2 Hours</button>
                </td>
            </tr>
            <tr>
                <td>
                    <button onclick="location.href='/?new_duration=1'" class="<?php echo duration_button_handler(1, 0); ?>" id="1_hour_button" <?php echo duration_button_handler(1, 1); ?>>1 Hour</button>
                </td>
                <td>
                    <button onclick="location.href='/?new_duration=0'" class="<?php echo duration_button_handler(0, 0); ?>" id="30_min_button" <?php echo duration_button_handler(0, 1); ?>>30 min</button>
                </td>
            </tr>
        </table>

        </div>
        <p>

        <div class="api-data">
            <!-- PHP will inject the data here -->
            <?php 
                echo "Full Message:<br>".htmlspecialchars($message)."<p>";
                if ($status == "active"){
                    echo "Time Elapsed:<br>".htmlspecialchars($elapsed_time)."s<p>";
                }
                echo "Current Date:<br>".date("F j, Y, g:i:s a")."<p>"; 
            ?>
        </div>
        <p>

    </div>

    <script>

       // When the button is clicked, send an AJAX request to fetch new data
       document.getElementById('phpButton').addEventListener('click', function() {
            // Disable button to avoid multiple clicks
            this.disabled = true;
            this.innerText = 'Loading...';

            // Make an AJAX request
            fetch('index.php', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/x-www-form-urlencoded'
                    'status': '<?php echo $status; ?>'
                },
                body: 'action=fetch_data'  // Trigger the PHP function via POST
            })
        });
    </script>
    
    <script>
        // Automatically refresh the page every second
        setTimeout(function() {
            location.reload();
        }, <?php if($button_recent){ echo "5000"; } else{ echo "1000"; } ?>);  // Refresh interval (1000 ms = 1 second)
    </script>

</body>
</html>