// 对比同一画板的新旧 JSON：尺寸、导出标记数、切图文件、标题区结构、字体、色板
import { readFileSync, readdirSync, existsSync } from 'node:fs'
import { join } from 'node:path'

const oldDir = '.scratch/lanhu-cockpit-asset-replacement/research/raw'
const newDir = '.scratch/lanhu-cockpit-asset-replacement/research/raw-v2'

function load(dir, file) {
    return JSON.parse(readFileSync(join(dir, file), 'utf8'))
}
function hex(c) {
    const h = (v) => Math.round(v * 255).toString(16).padStart(2, '0')
    return `#${h(c.r)}${h(c.g)}${h(c.b)}`
}
function summarize(j) {
    const ab = j.artboard
    let exportMarked = 0
    let ddsMarked = 0
    const exported = []
    const fonts = new Map()
    const colors = new Map()
    const images = []
    function walk(node, path) {
        const p = path ? `${path}/${node.name}` : node.name
        if (node.hasExportImage) {
            exportMarked += 1
            exported.push({ path: p, w: Math.round(node.frame?.width ?? 0), h: Math.round(node.frame?.height ?? 0), type: node.type })
        }
        if (node.hasExportDDSImage) ddsMarked += 1
        if (node.type === 'textLayer' && node.text?.style?.font?.name) {
            const f = node.text.style.font
            const k = `${f.name}|${f.size}`
            fonts.set(k, (fonts.get(k) || 0) + 1)
        }
        for (const f of node.style?.fills || []) {
            if (f.type === 'color' && f.color) {
                const c = hex(f.color)
                colors.set(c, (colors.get(c) || 0) + 1)
            }
            const url = f.ddsImage?.imageUrl || f.image?.imageUrl || f.imageUrl
            if (f.type === 'image' && url) images.push({ p, url })
        }
        for (const ch of node.layers || []) walk(ch, p)
    }
    for (const l of ab.layers || []) walk(l, '')
    const titleNode = (function find(n) {
        if (n.name === 'title') return n
        for (const c of n.layers || []) {
            const r = find(c)
            if (r) return r
        }
        return null
    })(ab)
    return {
        name: ab.name,
        frame: `${ab.frame.width}x${ab.frame.height}`,
        exportMarked,
        ddsMarked,
        assets: (j.assets || []).length,
        assetUrls: j.assets || [],
        fonts: fonts.size,
        fontList: [...fonts.keys()].slice(0, 8),
        colors: colors.size,
        topColors: [...colors.entries()].sort((a, b) => b[1] - a[1]).slice(0, 8).map(([c]) => c),
        images: images.length,
        titleChildren: titleNode ? (titleNode.layers || []).map((c) => `${c.type}:${c.name} ${Math.round(c.frame?.width ?? 0)}x${Math.round(c.frame?.height ?? 0)}`) : [],
        exported: exported.slice(0, 40),
    }
}

const files = readdirSync(newDir).filter((f) => f.endsWith('.json'))
for (const file of files) {
    const n = summarize(load(newDir, file))
    console.log(`\n=== NEW ${n.name} ${n.frame} | exportMarked=${n.exportMarked} dds=${n.ddsMarked} assets=${n.assets} fonts=${n.fonts} colors=${n.colors} images=${n.images}`)
    console.log('  fonts:', n.fontList.join(', '))
    console.log('  colors:', n.topColors.join(' '))
    console.log('  title:', n.titleChildren.join(' | '))
    console.log('  exported layers:')
    for (const e of n.exported) console.log(`    ${e.w}x${e.h} ${e.type} | ${e.path}`)
    const oldPath = join(oldDir, file)
    if (existsSync(oldPath)) {
        const o = summarize(load(oldDir, file))
        console.log(`  --- OLD ${o.name} ${o.frame} | exportMarked=${o.exportMarked} dds=${o.ddsMarked} assets=${o.assets} fonts=${o.fonts} colors=${o.colors} images=${o.images}`)
        console.log('  --- OLD title:', o.titleChildren.join(' | '))
        const oldSet = new Set(o.exported.map((e) => e.path))
        const added = n.exported.filter((e) => !oldSet.has(e.path))
        console.log('  --- NEW export layers (not in old):', added.length)
        for (const e of added) console.log(`      + ${e.w}x${e.h} ${e.type} | ${e.path}`)
    }
}