api: add call_info() JSON-RPC API

deltachat-jsonrpc/src/api.rs

@@ -48,6 +48,7 @@ pub mod types;
 
 use num_traits::FromPrimitive;
 use types::account::Account;
+use types::calls::JsonrpcCallInfo;
 use types::chat::FullChat;
 use types::contact::{ContactObject, VcardContact};
 use types::events::Event;
@@ -2117,6 +2118,13 @@ impl CommandApi {
         Ok(())
     }
 
+    /// Returns information about the call.
+    async fn call_info(&self, account_id: u32, msg_id: u32) -> Result<JsonrpcCallInfo> {
+        let ctx = self.get_context(account_id).await?;
+        let call_info = JsonrpcCallInfo::from_msg_id(&ctx, MsgId::new(msg_id)).await?;
+        Ok(call_info)
+    }
+
     /// Returns JSON with ICE servers, to be used for WebRTC video calls.
     async fn ice_servers(&self, account_id: u32) -> Result<String> {
         let ctx = self.get_context(account_id).await?;

deltachat-jsonrpc/src/api/types/calls.rs

@@ -0,0 +1,53 @@
+use anyhow::Result;
+
+use deltachat::context::Context;
+use deltachat::message::MsgId;
+use serde::Serialize;
+use typescript_type_def::TypeDef;
+
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
+#[serde(rename = "CallInfo", rename_all = "camelCase")]
+pub struct JsonrpcCallInfo {
+    /// True if the call is an incoming call.
+    pub is_incoming: bool,
+
+    /// True if the call should not ring anymore.
+    pub is_stale: bool,
+
+    /// True if the call is accepted.
+    pub is_accepted: bool,
+
+    /// True if the call has been ended.
+    pub is_ended: bool,
+
+    /// Call duration in seconds.
+    pub duration: i64,
+
+    /// SDP offer.
+    ///
+    /// Can be used to manually answer the call
+    /// even if incoming call event was missed.
+    pub sdp_offer: String,
+}
+
+impl JsonrpcCallInfo {
+    pub async fn from_msg_id(context: &Context, msg_id: MsgId) -> Result<JsonrpcCallInfo> {
+        let call_info = context.load_call_by_id(msg_id).await?;
+
+        let is_incoming = call_info.is_incoming();
+        let is_stale = call_info.is_stale();
+        let is_accepted = call_info.is_accepted();
+        let is_ended = call_info.is_ended();
+        let duration = call_info.duration_seconds();
+        let sdp_offer = call_info.place_call_info.clone();
+
+        Ok(JsonrpcCallInfo {
+            is_incoming,
+            is_stale,
+            is_accepted,
+            is_ended,
+            duration,
+            sdp_offer,
+        })
+    }
+}

deltachat-jsonrpc/src/api/types/mod.rs

@@ -1,4 +1,5 @@
 pub mod account;
+pub mod calls;
 pub mod chat;
 pub mod chat_list;
 pub mod contact;