/**
* JSON parsing utilities for AI responses
*/
export interface AdCopyResponse {
headline: string;
primaryText: string;
}
/**
* Parses JSON response from AI providers, stripping markdown code fences if present
* Supports both ```json and ``` code fence formats
*/
export function parseAIResponse(rawText: string): AdCopyResponse {
let cleanedText = rawText.trim();
// Strip markdown code fences
if (cleanedText.startsWith("```json")) {
cleanedText = cleanedText.replace(/^```json\n?/, "").replace(/\n?```$/, "");
} else if (cleanedText.startsWith("```")) {
cleanedText = cleanedText.replace(/^```\n?/, "").replace(/\n?```$/, "");
}
// Parse JSON
const parsed = JSON.parse(cleanedText) as AdCopyResponse;
// Validate required fields
if (!parsed.headline || !parsed.primaryText) {
throw new Error(
"Invalid AI response: missing headline or primaryText fields"
);
}
return parsed;
}
/**
* Formats ad copy response for display
*/
export function formatAdCopyResponse(
response: AdCopyResponse,
mediaType: "image" | "video"
): string {
const emoji = mediaType === "image" ? "📸" : "📱";
const typeLabel = mediaType.toUpperCase();
return `${emoji} ${typeLabel} AD COPY GENERATED\n\nHEADLINE:\n${response.headline}\n\nPRIMARY TEXT:\n${response.primaryText}`;
}
