City-Lifeline-Cockpit/tools/city-massing/make-cad-bim-unfitted-fallback.mjs

// Convert buildings rejected only by library asset-fit into exact-outline massing fallback.
// This preserves the surveyed footprint instead of stretching an incompatible asset.
import { readFileSync, writeFileSync } from 'node:fs'
const root = 'tools/city-massing/city/cad-bim/'
const batches = [
    'lod-pilot', 'lod-batch-urban8000', 'lod-batch-urban8000b', 'lod-batch-urban8000c',
    'lod-batch-urban-final', 'lod-batch-urban-tail', 'lod-batch-rural1', 'lod-batch-rural2', 'lod-batch-rural3',
]
const ids = new Set()
const placed = new Set()
for (const batch of batches) {
    const manifest = JSON.parse(readFileSync(`${root}${batch}/manifest.json`, 'utf8'))
    for (const cell of manifest.cells || []) for (const id of cell.buildingIds || []) placed.add(id)
    for (const id of manifest.excludedUnfittedIds || []) ids.add(id)
}
for (const id of placed) ids.delete(id)
const seated = JSON.parse(readFileSync(`${root}seated-plan.json`, 'utf8'))
const byId = new Map(seated.buildings.map((b) => [b.id, b]))
const buildings = []
const missing = []
for (const id of ids) {
    const source = byId.get(id)
    if (!source) {
        missing.push(id)
        continue
    }
    buildings.push({
        ...source,
        kind: 'massing',
        archetype: null,
        preferredAssets: null,
        massingFallbackFrom: source.kind,
    })
}
const plan = {
    ...seated,
    buildings,
    batch: {
        name: 'cad-bim-unfitted-exact-outline-fallback',
        sourceBatches: batches,
        selected: buildings.length,
        missing,
        note: 'Buildings rejected only by asset-fit are preserved as exact surveyed-outline massing.',
    },
}
writeFileSync(`${root}seated-unfitted-fallback.json`, JSON.stringify(plan, null, 2))
console.log(JSON.stringify({ rejectedIds: ids.size, selected: buildings.length, missing: missing.length }))