#!/usr/bin/php
<?php

    ### DO NOT EDIT THIS FILE

    function usage() {
        echo "\n";
        echo "Get and Set configuration parameters\n";
        echo "\n";
        echo "Usage:\n";
        echo "\n";
        echo "config get [configPath]\n";
        echo "config set [configPath] [value]\n";
        echo "config remove [configPath]\n";
        echo "\n";
        echo "configPath: The config path is in the format 'project_manager.workspaces_dir'\n";
        echo "\n";
        echo "--help            Prints this message\n";
        echo "\n";
        exit;
    }

    if ($_SERVER['argc'] < 3 || $_SERVER['argv'] == '--help') {
        usage();
    }

    global $project_manager_dir, $shortname, $configuration;
    $configuration = [];
    $project_manager_dir = dirname(dirname(__DIR__));
    $command = $_SERVER['argv'][1];
    $configPath = $_SERVER['argv'][2];
    $value = $_SERVER['argv'][3] ?? null;
    $shortname = substr($configPath, 0, strpos($configPath, '.'));
    $configPath = substr($configPath, strpos($configPath, '.')+1);

    if (function_exists($command)) {
        loadProjectManagerConfig($project_manager_dir);
        if ($shortname !== 'project_manager') {
            loadProjectConfig();
        }
        $command();
    }

    function mergeConfig($file)
    {
        global $configuration;
        $configuration = array_replace_recursive(
            $configuration,
            json_decode(file_get_contents($file), true)
        );
    }

    function loadProjectManagerConfig()
    {
        global $configuration, $project_manager_dir;
        $config_file = $project_manager_dir . '/etc/config.json';
        mergeConfig($config_file);
    }

    function loadProjectConfig()
    {
        global $configuration, $project_manager_dir;
        $customer = getCustomerFromShortname();
        $project = getProjectFromShortname();

        $config_file = "$project_manager_dir/data/$customer/$project/etc/config.json";
        mergeConfig($config_file);

        $plugin_dir = dirname($config_file) . '/plugins';
        $dh = opendir($plugin_dir);
        if ($dh) {
            while (false !== ($file = readdir($dh))) {
                if ('.' === $file || '..' === $file || !is_dir($plugin_dir/$file)) {
                    continue;
                }
                $config_file = "$plugin_dir/$file/etc/config.json";
                mergeConfig($config_file);
            }
        }
    }

    function getCustomerFromShortname()
    {
        global $configuration, $shortname;
        return $configuration['project_manager']['projects'][$shortname]['customer'] ?? null;
    }

    function getProjectFromShortname()
    {
        global $configuration, $shortname;
        return $configuration['project_manager']['projects'][$shortname]['project'] ?? null;
    }

    function parsePath()
    {
        global $configPath;
        $parsedPath = '';
        foreach (explode('.', $configPath) as $part) {
            $parsedPath .= "['$part']";
        }
        return $parsedPath;
    }

    function is()
    {
        global $configuration, $shortname;
        return eval("return isset(\$configuration['$shortname']".parsePath().");");
    }

    function get()
    {
        global $configuration, $shortname;
        if (!is()) {
            exit(1);
        }
        $return = eval("return \$configuration['$shortname']".parsePath().";");
        if (is_array($return)) {
            $echo = '';
            foreach (array_keys($return) as $value) {
                $echo .= '"'.$value.'" ';
            }
            $echo = trim($echo, ' ');
            echo $echo;
            exit;
        }
        echo $return;
    }

    function set()
    {
        global $configuration, $shortname, $value;
        if (!is()) {
            exit(1);
        }
        eval("\$configuration['$shortname']".parsePath()." = '$value';");
        writeConfig();
    }

    function remove()
    {
        global $configuration, $shortname;
        if (!is()) {
            exit(1);
        }
        eval("unset \$configuration['$shortname']".parsePath().";");
        writeConfig();
    }

    function writeConfig()
    {
        global $configuration, $shortname, $project_manager_dir;
        $customer = getCustomerFromShortname();
        $project = getProjectFromShortname();

        foreach($configuration as $shortname => $data) {
            if ('project_manager' === $shortname) {
                $config_file = "$project_manager_dir/etc/config.json";
            } elseif ('project' === $shortname) {
                $config_file = "$project_manager_dir/data/$customer/$project/etc/config";
            } else {
                $config_file = "$project_manager_dir/data/$customer/$project/etc/plugins/$shortname/config";
            }
            file_put_contents($config_file, json_encode([$shortname => $data], JSON_PRETTY_PRINT));
        }
    }