1 files changed, 167 insertions, 0 deletions
diff --git a/library/Icinga/Cli/Documentation.php b/library/Icinga/Cli/Documentation.php
new file mode 100644
index 0000000..6881467
--- /dev/null
+++ b/library/Icinga/Cli/Documentation.php
@@ -0,0 +1,167 @@
+<?php
+/* Icinga Web 2 | (c) 2013 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Cli;
+
+use Icinga\Application\ApplicationBootstrap as App;
+use Icinga\Cli\Documentation\CommentParser;
+use ReflectionClass;
+use ReflectionMethod;
+
+class Documentation
+{
+    protected $icinga;
+
+    protected $app;
+
+    protected $loader;
+
+    public function __construct(App $app)
+    {
+        $this->app = $app;
+        $this->loader = $app->cliLoader();
+    }
+
+    public function usage($module = null, $command = null, $action = null)
+    {
+        if ($module) {
+            $module = $this->loader->resolveModuleName($module);
+            return $this->moduleUsage($module, $command, $action);
+        }
+        if ($command) {
+            $command = $this->loader->resolveCommandName($command);
+            return $this->commandUsage($command, $action);
+        }
+        return $this->globalUsage();
+    }
+
+    public function globalUsage()
+    {
+        $d = "USAGE: icingacli [module] <command> [action] [options]\n\n"
+           . "Available commands:\n\n";
+        foreach ($this->loader->listCommands() as $command) {
+            if ($command !== 'autocomplete') {
+                $obj = $this->loader->getCommandInstance($command);
+                $d .= sprintf(
+                    "  %-14s  %s\n",
+                    $command,
+                    $this->getClassTitle($obj)
+                );
+            }
+        }
+        $d .= "\nAvailable modules:\n\n";
+        foreach ($this->loader->listModules() as $module) {
+            $d .= '  ' . $module . "\n";
+        }
+        $d .= "\nGlobal options:\n\n"
+            . "  --log [t]       Log to <t>, either stderr, file or syslog (default: stderr)\n"
+            . "  --log-path <f>  Which file to log into in case of --log file\n"
+            . "  --verbose       Be verbose\n"
+            . "  --debug         Show debug output\n"
+            . "  --help          Show help\n"
+            . "  --benchmark     Show benchmark summary\n"
+            . "  --watch [s]     Refresh output every <s> seconds (default: 5)\n"
+            . "  --version       Shows version of Icinga Web 2, loaded modules and PHP\n"
+            ;
+        $d .= "\nShow help on a specific command : icingacli help <command>"
+            . "\nShow help on a specific module  : icingacli help <module>"
+            . "\n";
+        return $d;
+    }
+
+    public function moduleUsage($module, $command = null, $action = null)
+    {
+        $commands = $this->loader->listModuleCommands($module);
+
+        if (empty($commands)) {
+            return "The '$module' module does not provide any CLI commands\n";
+        }
+        $d = '';
+        $obj = null;
+        if ($command) {
+            $obj = $this->loader->getModuleCommandInstance($module, $command);
+        }
+        if ($command === null) {
+            $d = "USAGE: icingacli $module <command> [<action>] [options]\n\n"
+               . "Available commands:\n\n";
+            foreach ($commands as $command) {
+                $d .= '  ' . $command . "\n";
+            }
+            $d .= "\nShow help on a specific command: icingacli help $module <command>\n";
+        } elseif ($action === null) {
+            $d .= $this->showCommandActions($obj, $command);
+        } else {
+            $action = $this->loader->resolveObjectActionName($obj, $action);
+            $d .= $this->getMethodDocumentation($obj, $action);
+        }
+        return $d;
+    }
+
+    /**
+     * @param   Command $command
+     * @param   string  $name
+     *
+     * @return  string
+     */
+    protected function showCommandActions($command, $name)
+    {
+        $actions = $command->listActions();
+        $d = $this->getClassDocumentation($command)
+           . "Available actions:\n\n";
+        foreach ($actions as $action) {
+            $d .= sprintf(
+                "  %-14s  %s\n",
+                $action,
+                $this->getMethodTitle($command, $action)
+            );
+        }
+        $d .= "\nShow help on a specific action: icingacli help ";
+        if ($command->isModule()) {
+            $d .= $command->getModuleName() . ' ';
+        }
+        $d .= "$name <action>\n";
+        return $d;
+    }
+
+    public function commandUsage($command, $action = null)
+    {
+        $obj = $this->loader->getCommandInstance($command);
+        $action = $this->loader->resolveObjectActionName($obj, $action);
+
+        $d = "\n";
+        if ($action) {
+            $d .= $this->getMethodDocumentation($obj, $action);
+        } else {
+            $d .= $this->showCommandActions($obj, $command);
+        }
+        return $d;
+    }
+
+    protected function getClassTitle($class)
+    {
+        $ref = new ReflectionClass($class);
+        $comment = new CommentParser($ref->getDocComment());
+        return $comment->getTitle();
+    }
+
+    protected function getClassDocumentation($class)
+    {
+        $ref = new ReflectionClass($class);
+        $comment = new CommentParser($ref->getDocComment());
+        return $comment->dump();
+    }
+
+    protected function getMethodTitle($class, $method)
+    {
+        $ref = new ReflectionMethod($class, $method . 'Action');
+        $comment = new CommentParser($ref->getDocComment());
+        return $comment->getTitle();
+    }
+
+    protected function getMethodDocumentation($class, $method)
+    {
+        $ref = new ReflectionMethod($class, $method . 'Action');
+        $comment = new CommentParser($ref->getDocComment());
+        return $comment->dump();
+    }
+}