<?php

$user = $_GET['user'] ?? null;
$inputJSON = file_get_contents('php://input');
$input = json_decode($inputJSON, true);
$data = json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/app.json"), true)["webhook"];

file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/data.json", json_encode($input, JSON_PRETTY_PRINT));

if ($user === null) {
    header("HTTP/1.1 500 Internal Server Error") and die();
}

if (!in_array($user, array_keys($data))) {
    header("HTTP/1.1 404 Not Found") and die();
}

if ($input["signing_token"] !== $data[$user]) {
    header("HTTP/1.1 401 Unauthorized") and die();
}

if ($input['system_id'] === "7d9f543e-f742-40f6-9d07-86c3f2983124") {
    $system = "gdapd";
    $name = "Raindrops System";
} else {
    $system = "ynmuc";
    $name = "Cloudburst System";
}

$lastFronter = json_decode(@file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/data/$system-last.json"), true) ?? "";

if ($input["type"] === "CREATE_SWITCH" || $input["type"] === "UPDATE_SWITCH" || $input["type"] === "DELETE_SWITCH") {
    file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/data/$system-fronters.json", file_get_contents("https://pluralkit.equestria.dev/v2/systems/$input[system_id]/fronters"));
    file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/data/$system-switches.json", file_get_contents("https://pluralkit.equestria.dev/v2/systems/$input[system_id]/switches"));

    $fronters = json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/data/$system-fronters.json"), true);
    $currentFronter = $fronters["members"][0]["id"];
    file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/data/$system-last.json", json_encode($currentFronter));

    $ntfy = json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/app.json"), true)["ntfy"];

    file_get_contents('https://' . $ntfy["server"] . '/public-switches', false, stream_context_create([
        'http' => [
            'method' => 'POST',
            'header' =>
                "Content-Type: text/plain\r\n" .
                "Title: 🐴 Switch occurred in the $name\r\n" .
                "Priority: default\r\n" .
                "Tags: switch\r\n" .
                "Actions: view, Open on Cold Haze, https://ponies.equestria.horse/" . $fronters["members"][0]["name"] . "/, clear=true\r\n" .
                "Authorization: Basic " . base64_encode($ntfy["user"] . ":" . $ntfy["password"]),
            'content' => ($fronters["members"][0]["display_name"] ?? $fronters["members"][0]["name"]) . " switched in just now"
        ]
    ]));

    file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/data.json-res", "affected: " . $input["type"] . " (" . gettype($input["type"]) . ")") and die();
} else {
    file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/data.json-res", "invalid method: " . $input["type"] . " (" . gettype($input["type"]) . ")") and die();
}