/**
 * Conservative, reliable intent detector.
 * - Supports slash commands: /image, /video
 * - Supports common language: "generate a picture", "make a video", etc.
 * - Returns a cleaned prompt for tools (strips /image or /video prefix)
 */
export function detectAgenticIntent(raw) {
    const text = (raw || '').trim();
    if (!text)
        return { intent: null, prompt: '' };
    const lower = text.toLowerCase();
    // Slash commands (highest confidence)
    if (lower.startsWith('/image') || lower.startsWith('/img') || lower.startsWith('/pic')) {
        const prompt = text.replace(/^\/(image|img|pic)\s*/i, '').trim();
        return { intent: 'generate_images', prompt: prompt || '' };
    }
    if (lower.startsWith('/video') || lower.startsWith('/animate')) {
        const prompt = text.replace(/^\/(video|animate)\s*/i, '').trim();
        return { intent: 'generate_videos', prompt: prompt || '' };
    }
    // Natural language — images
    const wantsImageVerb = lower.includes('generate') || lower.includes('create') || lower.includes('make') || lower.includes('draw');
    const wantsImageNoun = lower.includes('image') || lower.includes('picture') || lower.includes('photo') || lower.includes('portrait') || lower.includes('art');
    const wantsImagePhrase = lower.includes('a picture of') || lower.includes('an image of') || lower.includes('generate me') || lower.includes('create an image');
    if ((wantsImageVerb && wantsImageNoun) || wantsImagePhrase) {
        return { intent: 'generate_images', prompt: text };
    }
    // Natural language — videos
    const wantsVideoVerb = lower.includes('generate') || lower.includes('create') || lower.includes('make');
    const wantsVideoNoun = lower.includes('video') || lower.includes('animation') || lower.includes('clip') || lower.includes('animate');
    const wantsVideoPhrase = lower.includes('a video of') || lower.includes('generate a video') || lower.includes('make an animation');
    if ((wantsVideoVerb && wantsVideoNoun) || wantsVideoPhrase) {
        return { intent: 'generate_videos', prompt: text };
    }
    return { intent: null, prompt: text };
}