File size: 2,688 Bytes
1dbc34b | 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 | /**
* Conversation history utilities for processing message history
*
* Provides standardized conversation history handling:
* - Extract text from content (string or array format)
* - Normalize content blocks to array format
* - Format history as plain text for CLI-based providers
* - Convert history to Claude SDK message format
*/
import type { ConversationMessage } from '@automaker/types';
/**
* Extract plain text from message content (handles both string and array formats)
*
* @param content - Message content (string or array of content blocks)
* @returns Extracted text content
*/
export function extractTextFromContent(
content: string | Array<{ type: string; text?: string; source?: object }>
): string {
if (typeof content === 'string') {
return content;
}
// Extract text blocks only
return content
.filter((block) => block.type === 'text')
.map((block) => block.text || '')
.join('\n');
}
/**
* Normalize message content to array format
*
* @param content - Message content (string or array)
* @returns Content as array of blocks
*/
export function normalizeContentBlocks(
content: string | Array<{ type: string; text?: string; source?: object }>
): Array<{ type: string; text?: string; source?: object }> {
if (Array.isArray(content)) {
return content;
}
return [{ type: 'text', text: content }];
}
/**
* Format conversation history as plain text for CLI-based providers
*
* @param history - Array of conversation messages
* @returns Formatted text with role labels
*/
export function formatHistoryAsText(history: ConversationMessage[]): string {
if (history.length === 0) {
return '';
}
let historyText = 'Previous conversation:\n\n';
for (const msg of history) {
const contentText = extractTextFromContent(msg.content);
const role = msg.role === 'user' ? 'User' : 'Assistant';
historyText += `${role}: ${contentText}\n\n`;
}
historyText += '---\n\n';
return historyText;
}
/**
* Convert conversation history to Claude SDK message format
*
* @param history - Array of conversation messages
* @returns Array of Claude SDK formatted messages
*/
export function convertHistoryToMessages(history: ConversationMessage[]): Array<{
type: 'user' | 'assistant';
session_id: string;
message: {
role: 'user' | 'assistant';
content: Array<{ type: string; text?: string; source?: object }>;
};
parent_tool_use_id: null;
}> {
return history.map((historyMsg) => ({
type: historyMsg.role,
session_id: '',
message: {
role: historyMsg.role,
content: normalizeContentBlocks(historyMsg.content),
},
parent_tool_use_id: null,
}));
}
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