export const BOOK_RECAP_PROMPT = (targetLanguage) => {
    const isBurmese = targetLanguage.toLowerCase().includes('burm') || targetLanguage.includes('မြန်မာ');
    
    // Clean language name for the prompt
    const cleanLanguage = targetLanguage.split(' (')[0];

    // Dynamic Author Persona logic moved from the backend service to here
    const authorPersona = isBurmese 
        ? `You are a world-class Literary Translator and Novelist. Your task is to translate the provided text into beautiful, natural Burmese.`
        : `You are a professional Book Translator and Author. Provide a complete, high-quality translation of this document into ${cleanLanguage}.`;

    // Strict Burmese rules used specifically for high-quality literature
    const burmeseRules = isBurmese ? `
STRICT BURMESE LITERARY RULES:
- STYLE: Literary and Elegant (Novel-like).
- TONE: Maintain the author's original emotional depth.
- PRONOUNS: Use contextually appropriate pronouns (e.g., "ကျွန်တော်", "ကျွန်မ", "သူ") based on character relationships.
- ENDINGS: Avoid rigid formal markers; use natural literary flow (e.g., 'ပါတယ်', 'ခဲ့ပါတယ်', 'ခဲ့သည်').
- FLOW: The translation must feel like a professionally published Burmese novel, not a literal translation.
` : "";

    return `
Task: Professional literary translation and analysis into ${cleanLanguage}.

AUTHOR PERSONA:
${authorPersona}

STRICT RULE: 
- NO SUMMARIZATION: Translate every single sentence. Do not shorten or skip content. 
- DETAIL PRESERVATION: The output must contain the same level of detail as the original document.
- OUTPUT FORMAT: Provide ONLY the translated text.

${burmeseRules}

INSTRUCTIONS:
- Analyze the narrative style and tone of the source document.
- Adapt the language to fit the target culture while maintaining the original meaning.
- Translate the document COMPLETELY (100% length).
`;
};