File size: 5,377 Bytes
4e23b01 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 | import { daemonFileRefFromPart, parseDaemonFileUrl, type ContentPart, type ContextMessage } from '@moonshot-ai/agent-core-v2';
import type { Message, MessageContent, MessageRole, ToolUseContent } from '../../protocol/message';
function deriveMessageId(sessionId: string, index: number): string {
const padded = String(index).padStart(6, '0');
return `msg_${sessionId}_${padded}`;
}
function toProtocolRole(role: ContextMessage['role']): MessageRole {
return role as MessageRole;
}
function mapContentPart(part: ContextMessage['content'][number]): MessageContent {
switch (part.type) {
case 'text':
return { type: 'text', text: part.text };
case 'think': {
const sig = part.encrypted;
return sig !== undefined
? { type: 'thinking', thinking: part.think, signature: sig }
: { type: 'thinking', thinking: part.think };
}
case 'image_url': {
const ref = parseDaemonFileUrl(part.imageUrl.url);
return ref !== undefined
? { type: 'image', source: { kind: 'session_media', file_id: ref.fileId }, name: part.imageUrl.name }
: { type: 'image', source: { kind: 'url', url: part.imageUrl.url, id: part.imageUrl.id }, name: part.imageUrl.name };
}
case 'audio_url':
return { type: 'text', text: `[audio:${part.audioUrl.url}]` };
case 'video_url': {
const ref = parseDaemonFileUrl(part.videoUrl.url);
return ref !== undefined
? { type: 'video', source: { kind: 'session_media', file_id: ref.fileId }, name: part.videoUrl.name }
: { type: 'video', source: { kind: 'url', url: part.videoUrl.url, id: part.videoUrl.id }, name: part.videoUrl.name };
}
}
}
function buildProtocolContent(msg: ContextMessage): MessageContent[] {
const visibleContent = msg.content.filter((p) => p.type !== 'think' || p.hidden !== true);
if (msg.role === 'tool') {
if (msg.toolCallId === undefined) {
return visibleContent.map((p) => mapContentPart(p));
}
const hasMediaPart = visibleContent.some(
(p) => p.type === 'image_url' || p.type === 'video_url' || p.type === 'audio_url',
);
const output: unknown = hasMediaPart
? visibleContent
: visibleContent.map((p) => (p.type === 'text' ? p.text : '')).join('');
const part: MessageContent =
msg.isError === true
? {
type: 'tool_result',
tool_call_id: msg.toolCallId,
output,
is_error: true,
}
: {
type: 'tool_result',
tool_call_id: msg.toolCallId,
output,
};
return [part];
}
const base = visibleContent.map((p) => mapContentPart(p));
if (msg.role === 'assistant' && msg.toolCalls.length > 0) {
for (const call of msg.toolCalls) {
let parsedInput: unknown = call.arguments;
if (typeof call.arguments === 'string') {
try {
parsedInput = JSON.parse(call.arguments);
} catch {
parsedInput = call.arguments;
}
}
const part: ToolUseContent = {
type: 'tool_use',
tool_call_id: call.id,
tool_name: call.name,
input: parsedInput,
};
base.push(part);
}
}
return base;
}
export function projectPromptContentParts(content: readonly ContentPart[]): MessageContent[] {
const parts: MessageContent[] = [];
for (const part of content) {
const daemonRef = daemonFileRefFromPart(part);
if (daemonRef !== undefined) {
parts.push({
type: daemonRef.kind,
source: { kind: 'session_media', file_id: daemonRef.ref.fileId },
name:
part.type === 'image_url'
? part.imageUrl.name
: part.type === 'video_url'
? part.videoUrl.name
: undefined,
});
continue;
}
if (part.type === 'text') parts.push({ type: 'text', text: part.text });
else if (part.type === 'image_url') {
const match = /^data:([^;]+);base64,(.*)$/.exec(part.imageUrl.url);
parts.push(match === null
? { type: 'image', source: { kind: 'url', url: part.imageUrl.url, id: part.imageUrl.id }, name: part.imageUrl.name }
: { type: 'image', source: { kind: 'base64', media_type: match[1]!, data: match[2]! }, name: part.imageUrl.name });
} else if (part.type === 'video_url') {
const match = /^data:([^;]+);base64,(.*)$/.exec(part.videoUrl.url);
parts.push(match === null
? { type: 'video', source: { kind: 'url', url: part.videoUrl.url, id: part.videoUrl.id }, name: part.videoUrl.name }
: { type: 'video', source: { kind: 'base64', media_type: match[1]!, data: match[2]! }, name: part.videoUrl.name });
}
}
return parts;
}
export function toProtocolMessage(
sessionId: string,
index: number,
msg: ContextMessage,
sessionCreatedAtMs: number,
createdAtMsOverride?: number,
): Message {
const id = msg.id ?? deriveMessageId(sessionId, index);
const role = toProtocolRole(msg.role);
const content = buildProtocolContent(msg);
const createdAtMs = createdAtMsOverride ?? sessionCreatedAtMs + index;
const metadata = msg.origin !== undefined ? { origin: msg.origin } : undefined;
return {
id,
session_id: sessionId,
role,
content,
created_at: new Date(createdAtMs).toISOString(),
...(metadata !== undefined ? { metadata } : {}),
};
}
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