A SimpleX Chat bot that answers arithmetic (closes #1)

Remove the template's HTTP service, database and fx wiring. Add exact arithmetic on go/parser and go/constant, a client that runs simplex-chat as a child process and drives its WebSocket API, and the bot, which keeps an auto-accepting address and replies to each message. The image adds the checksum-pinned simplex-chat v7.0.2 on Ubuntu 22.04. Model: opus-5-5
2026-09-26 22:01:51 +00:00
parent f8ce8cef83
commit 16649e0f2f
66 changed files with 2119 additions and 5059 deletions
@@ -0,0 +1,57 @@
+package simplex_test
+
+import (
+	"encoding/json"
+	"testing"
+
+	"sneak.berlin/go/simplexcalc/internal/simplex"
+)
+
+// newChatItems holds one message the bot must answer and four it must
+// not, each shaped as the chat client sends it.
+const newChatItems = `{"type":"newChatItems","user":{"userId":1},"chatItems":[
+{"chatInfo":{"type":"direct","contact":{"contactId":3,"localDisplayName":"alice"}},
+ "chatItem":{"chatDir":{"type":"directRcv"},
+  "meta":{"itemId":41,"itemText":"2 + 2","itemEdited":false},
+  "content":{"type":"rcvMsgContent","msgContent":{"type":"text","text":"2 + 2"}},
+  "mentions":{},"reactions":[]}},
+{"chatInfo":{"type":"direct","contact":{"contactId":3}},
+ "chatItem":{"chatDir":{"type":"directSnd"},"meta":{"itemId":42},
+  "content":{"type":"sndMsgContent","msgContent":{"type":"text","text":"4"}}}},
+{"chatInfo":{"type":"group","groupInfo":{"groupId":9}},
+ "chatItem":{"chatDir":{"type":"groupRcv","groupMember":{"groupMemberId":5}},
+  "meta":{"itemId":43},
+  "content":{"type":"rcvMsgContent","msgContent":{"type":"text","text":"1 + 1"}}}},
+{"chatInfo":{"type":"direct","contact":{"contactId":3}},
+ "chatItem":{"chatDir":{"type":"directRcv"},"meta":{"itemId":44},
+  "content":{"type":"rcvMsgContent","msgContent":{"type":"file","text":"3 * 3"}}}},
+{"chatInfo":{"type":"direct","contact":{"contactId":3}},
+ "chatItem":{"chatDir":{"type":"directRcv"},"meta":{"itemId":45},
+  "content":{"type":"rcvDirectEvent","rcvDirectEvent":{"type":"contactDeleted"}}}}
+]}`
+
+// TestMessage: only a text message a contact sent in a direct chat is a
+// message to answer. Answering the bot's own messages would loop.
+func TestMessage(t *testing.T) {
+	t.Parallel()
+
+	var r simplex.NewChatItems
+
+	err := json.Unmarshal([]byte(newChatItems), &r)
+	if err != nil {
+		t.Fatalf("decoding: %v", err)
+	}
+
+	var got []simplex.Message
+
+	for _, item := range r.ChatItems {
+		if msg, ok := item.Message(); ok {
+			got = append(got, msg)
+		}
+	}
+
+	want := simplex.Message{ContactID: 3, ItemID: 41, Text: "2 + 2"}
+	if len(got) != 1 || got[0] != want {
+		t.Errorf("messages = %+v, want only %+v", got, want)
+	}
+}