const Vibrant = require('node-vibrant');

async function extractColors(mockPath) {
  const palette = await Vibrant.from(mockPath).getPalette();

  return {
    primary: palette.Vibrant?.hex,
    secondary: palette.Muted?.hex,
    accent: palette.DarkVibrant?.hex,
    background: palette.LightMuted?.hex,
    text: palette.DarkMuted?.hex,
    allColors: Object.entries(palette)
      .filter(([_, swatch]) => swatch)
      .map(([name, swatch]) => ({
        name,
        hex: swatch.hex,
        rgb: swatch.rgb,
        population: swatch.population
      }))
  };
}

async function analyzeLayout(mockPath) {
  const image = await sharp(mockPath).metadata();

  // Detect major sections through edge detection
  const edges = await detectEdges(mockPath);

  // Identify grid patterns
  const gridAnalysis = await detectGridPattern(edges);

  return {
    dimensions: { width: image.width, height: image.height },
    sections: identifySections(edges),
    grid: gridAnalysis,
    hierarchy: buildHierarchy(sections)
  };
}

async function detectTypography(mockPath, regions) {
  const textStyles = [];

  for (const region of regions) {
    // Extract text regions
    const textAreas = await findTextAreas(mockPath, region);

    for (const area of textAreas) {
      textStyles.push({
        region: region.name,
        estimatedSize: estimateFontSize(area),
        estimatedWeight: estimateWeight(area),
        color: extractDominantColor(area),
        position: area.bounds
      });
    }
  }

  return deduplicateStyles(textStyles);
}

async function analyzeSpacing(mockPath, elements) {
  const spacingValues = [];

  // Analyze gaps between elements
  for (let i = 0; i < elements.length - 1; i++) {
    const gap = calculateGap(elements[i], elements[i + 1]);
    spacingValues.push(gap);
  }

  // Identify spacing scale
  const scale = identifySpacingScale(spacingValues);

  return {
    scale,
    patterns: groupByPattern(spacingValues),
    recommendations: suggestCSSVariables(scale)
  };
}

async function detectComponents(mockPath) {
  const components = [];

  // Detect buttons
  const buttons = await detectButtons(mockPath);
  components.push(...buttons.map(b => ({ type: 'button', ...b })));

  // Detect cards
  const cards = await detectCards(mockPath);
  components.push(...cards.map(c => ({ type: 'card', ...c })));

  // Detect inputs
  const inputs = await detectInputs(mockPath);
  components.push(...inputs.map(i => ({ type: 'input', ...i })));

  return components;
}

{
  "type": "object",
  "required": ["mockSource"],
  "properties": {
    "mockSource": {
      "type": "object",
      "properties": {
        "type": { "type": "string", "enum": ["image", "figma", "url"] },
        "path": { "type": "string" }
      }
    },
    "analysisDepth": {
      "type": "string",
      "enum": ["basic", "detailed", "comprehensive"],
      "default": "detailed"
    },
    "focusAreas": {
      "type": "array",
      "items": { "type": "string" }
    }
  }
}

{
  "type": "object",
  "properties": {
    "success": { "type": "boolean" },
    "designSpec": {
      "type": "object",
      "properties": {
        "layout": { "type": "object" },
        "typography": { "type": "object" },
        "colorPalette": { "type": "object" },
        "spacing": { "type": "object" },
        "components": { "type": "array" },
        "decorativeElements": { "type": "array" }
      }
    },
    "cssVariables": { "type": "object" },
    "implementationNotes": { "type": "array" }
  }
}

/skill mock-spec-extractor \
  --mock designs/dashboard-mock.png \
  --depth comprehensive \
  --focus "header,sidebar,cards"