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| 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 | 30x 34x 2x 1x 1x 1x 2x 2x 30x 32x 32x 36x 36x 36x 36x 1x 1x 1x 35x 32x 36x 36x 2x 34x 2x 2x 2x 2x 2x 2x 2x 32x 36x 27x 5x 5x 5x 5x 9x 4x 5x 5x 5x 5x 5x 5x 5x 5x 5x 5x 3x 2x 5x | import { Message } from "../../chat/Message.js";
import { ContentPart } from "../../chat/Content.js";
import { AnthropicMessage, AnthropicContentBlock } from "./types.js";
export function formatSystemPrompt(messages: Message[]): string | undefined {
let systemPrompt: string | undefined;
for (const msg of messages) {
if (msg.role === "system" || msg.role === "developer") {
if (typeof msg.content === "string") {
systemPrompt = msg.content;
} else if (Array.isArray(msg.content)) {
systemPrompt = msg.content
.filter((p): p is ContentPart & { type: "text" } => p.type === "text")
.map((p) => p.text)
.join("\n");
E} else if (msg.content) {
systemPrompt = String(msg.content);
}
}
}
return systemPrompt;
}
export function formatMessages(requestMessages: Message[]): AnthropicMessage[] {
const messages: AnthropicMessage[] = [];
for (const msg of requestMessages) {
Iif (msg.role === "system" || msg.role === "developer") continue;
const formatted = formatSingleMessage(msg);
const lastMsg = messages[messages.length - 1];
if (lastMsg && lastMsg.role === formatted.role) {
// Merge content
const existingContent = Array.isArray(lastMsg.content)
? lastMsg.content
: [{ type: "text", text: lastMsg.content } as AnthropicContentBlock];
const newContent = Array.isArray(formatted.content)
? formatted.content
: [{ type: "text", text: formatted.content } as AnthropicContentBlock];
lastMsg.content = [...existingContent, ...newContent];
} else {
messages.push(formatted);
}
}
return messages;
}
function formatSingleMessage(msg: Message): AnthropicMessage {
const role: "user" | "assistant" = msg.role === "user" ? "user" : "assistant";
// Handle Tool Responses (role: "tool")
if (msg.role === "tool") {
return {
role: "user",
content: [
{
type: "tool_result",
tool_use_id: msg.tool_call_id!,
content: typeof msg.content === "string" ? msg.content : JSON.stringify(msg.content),
is_error: msg.isError
}
]
};
}
// Handle Assistant Messages (which might have tool_calls)
if (msg.role === "assistant" && msg.tool_calls) {
const blocks: AnthropicContentBlock[] = [];
// Assistant text content
const text = String(msg.content || "");
Eif (text.length > 0) {
blocks.push({ type: "text", text });
}
// Assistant tool uses
for (const toolCall of msg.tool_calls) {
blocks.push({
type: "tool_use",
id: toolCall.id,
name: toolCall.function.name,
input: JSON.parse(toolCall.function.arguments)
});
}
return { role: "assistant", content: blocks };
}
const contentText = String(msg.content || "");
if (contentText && typeof msg.content === "string") {
return { role, content: contentText };
}
Iif (contentText && msg.content instanceof String) {
return { role, content: contentText };
}
// Handle multimodal content (images)
const blocks: AnthropicContentBlock[] = [];
Eif (Array.isArray(msg.content)) {
for (const part of msg.content) {
if (part.type === "text") {
blocks.push({ type: "text", text: part.text });
E} else if (part.type === "image_url") {
const url = part.image_url.url;
Eif (url.startsWith("data:")) {
const parts = url.split(",");
const meta = parts[0];
const data = parts.slice(1).join(",");
Eif (meta && data) {
const mimeMatch = meta.match(/:(.*?);/);
const mediaType = mimeMatch ? mimeMatch[1] : "image/jpeg";
if (mediaType === "application/pdf") {
blocks.push({
type: "document",
source: {
type: "base64",
media_type: "application/pdf",
data: data
}
});
} else {
blocks.push({
type: "image",
source: {
type: "base64",
media_type: mediaType || "image/jpeg",
data: data
}
});
}
}
}
}
}
}
return { role, content: blocks };
}
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