support gladia stt (#1397)

* support gladia stt

* wip

* wip

* update verb specification

lib/tasks/stt-task.js

@@ -203,6 +203,56 @@ class SttTask extends Task {
     if (cs.hasGlobalSttPunctuation && !this.data.recognizer.punctuation) {
       this.data.recognizer.punctuation = cs.globalSttPunctuation;
     }
+    if (this.vendor === 'gladia') {
+      const { api_key, region } = this.sttCredentials;
+      const {url} = await this.createGladiaLiveSession({
+        api_key, region,
+        model: this.data.recognizer.model || 'solaria-1',
+        options: this.data.recognizer.gladiaOptions || {}
+      });
+      const {host, pathname, search} = new URL(url);
+      this.sttCredentials.host = host;
+      this.sttCredentials.path = `${pathname}${search}`;
+    }
+  }
+
+
+  async createGladiaLiveSession({
+    api_key,
+    region = 'us-west',
+    model = 'solaria-1',
+    options = {},
+  }) {
+    const url = `https://api.gladia.io/v2/live?region=${region}`;
+    const response = await fetch(url, {
+      method: 'POST',
+      headers: {
+        'x-gladia-key': api_key,
+        'Content-Type': 'application/json'
+      },
+      body: JSON.stringify({
+        encoding: 'wav/pcm',
+        bit_depth: 16,
+        sample_rate: 8000,
+        channels: 1,
+        model,
+        ...options,
+        messages_config: {
+          receive_final_transcripts: true,
+          receive_speech_events: true,
+          receive_errors: true,
+        }
+      })
+    });
+    if (!response.ok) {
+      const error = await response.text();
+      this.logger.error({url, status: response.status, error}, 'Error creating Gladia live session');
+      throw new Error(`Error creating Gladia live session: ${response.status} ${error}`);
+    }
+
+    const data = await response.json();
+    this.logger.debug({url: data.url}, 'Gladia Call registered');
+    return data;
   }
 
   addCustomEventListener(ep, event, handler) {