City-Lifeline-Cockpit/.scratch/lanhu-cockpit-asset-replacement/research/analyze-figma-json.mjs

// 分析蓝湖 FigmaJSON：画板尺寸、切图（导出标记）、文本字体、图片引用、色板
import { readFileSync } from 'node:fs'

const file = process.argv[2]
const j = JSON.parse(readFileSync(file, 'utf8'))
const ab = j.artboard

const fonts = new Map() // name|postScript|size|weight -> {count, samples:Set}
const slices = []
const images = []
const colors = new Map()

function hex(c) {
    if (!c) return null
    const h = (v) => Math.round(v * 255).toString(16).padStart(2, '0')
    return `${h(c.r)}${h(c.g)}${h(c.b)}${c.a !== undefined && c.a < 1 ? h(c.a) : ''}`
}
function addFont(f, text) {
    if (!f || !f.name) return
    const key = `${f.name} | ${f.postScriptName || ''} | ${f.size}px | w${f.fontWeight ?? ''}${f.bold ? ' bold' : ''}`
    const cur = fonts.get(key) || { count: 0, samples: new Set() }
    cur.count += 1
    if (text) cur.samples.add(String(text).slice(0, 12))
    fonts.set(key, cur)
}

function walk(node, path) {
    const p = path ? `${path}/${node.name}` : node.name
    if (node.type === 'textLayer' && node.text) {
        addFont(node.text.style?.font, node.text.style?.content)
        for (const r of node.text.runs || node.text.styleRuns || []) addFont(r.font || r.style?.font, r.content || r.text)
    }
    if (node.hasExportImage || node.hasExportDDSImage) {
        slices.push({ path: p, type: node.type, w: Math.round(node.frame?.width ?? 0), h: Math.round(node.frame?.height ?? 0), dds: !!node.hasExportDDSImage })
    }
    for (const f of node.style?.fills || []) {
        if (f.type === 'color' && f.color) {
            const c = hex(f.color)
            if (c) colors.set(c, (colors.get(c) || 0) + 1)
        }
        const url = f.ddsImage?.imageUrl || f.image?.imageUrl || f.imageUrl
        if (f.type === 'image' && url) {
            images.push({ path: p, url, w: Math.round(node.frame?.width ?? 0), h: Math.round(node.frame?.height ?? 0) })
        }
    }
    for (const ch of node.layers || []) walk(ch, p)
}
for (const l of ab.layers || []) walk(l, '')

const out = {
    artboard: ab.name,
    frame: { w: ab.frame.width, h: ab.frame.height },
    sliceCount: slices.length,
    sliceLayers: slices,
    fonts: [...fonts.entries()].sort((a, b) => b[1].count - a[1].count).map(([k, v]) => ({ font: k, count: v.count, samples: [...v.samples].slice(0, 4) })),
    imageRefCount: images.length,
    imageRefs: images,
    topColors: [...colors.entries()].sort((a, b) => b[1] - a[1]).slice(0, 24).map(([k, v]) => ({ color: `#${k}`, count: v })),
    assetFiles: j.assets || [],
}
console.log(JSON.stringify(out, null, 1))