Start adding state classes; update dependencies

app/services/states.service.js

@@ -0,0 +1,50 @@
+const { Service } = require('flitter-di')
+
+/*
+ * states Service
+ * -------------------------------------------------------------
+ * This is a service file that will be made available through Flitter's
+ * dependency injector to the rest of the application based on its given
+ * canonical name.
+ *
+ * e.g. app.di().service("states")
+ */
+class StatesService extends Service {
+    static #state_map = {
+        // TODO apache and nginx states - virtual host, reverse proxy
+        // TODO file/directory permissions state - chmod & chown
+        // TODO file download state
+        // TODO file unpack state - zips, tarballs
+        // TODO package repository states - import keys, install repository
+        // TODO service manager states - service enabled, service installed
+        // TODO git states - clone repo, ref checked out
+
+        'fs.file': require('../classes/state/fs/FileState'),
+        'fs.directory': require('../classes/state/fs/DirectoryState'),
+
+        'package.present': require('../classes/state/os/PackageState'),
+        'package.updates': require('../classes/state/os/UpdateState'),
+        'package.cache.clear': require('../classes/state/os/PackageCacheClearedState'),
+
+        'service.running': require('../classes/state/os/ServiceState'),
+        'service.restarted': require('../classes/state/os/ServiceRestartState'),
+        'service.daemon.reloaded': require('../classes/state/os/ServiceDaemonReloadState'),
+    }
+
+    static get services() {
+        return [...super.services, 'app', 'configs']
+    }
+
+    from_config(host, state_config) {
+        const type = state_config.type
+        delete state_config.type
+
+        const StepClass = this.constructor.#state_map[type]
+        this.app.di().make(StepClass)
+        if ( !StepClass ) throw new Error(`Invalid or unknown step type: ${type}`)
+
+        return new StepClass(host, state_config)
+    }
+}
+
+module.exports = exports = StatesService