import crypto from "node:crypto";
import fs from "node:fs";
import path from "node:path";
import { fileURLToPath } from "node:url";

const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "../..");
const inputPath = path.join(root, "tests/golden/M15-02A/blender-parity-map.json");
const output = path.resolve(process.argv[2] ?? path.join(root, "tests/golden/M15-02B/blender-gap-audit.json"));
const map = JSON.parse(fs.readFileSync(inputPath, "utf8"));
const seen = new Set();
const duplicateIds = [];
const unmapped = [];
const summaryOnly = [];
const proxyOnly = [];
const routeOnly = [];
for (const entry of map.entries) {
  if (seen.has(entry.id)) duplicateIds.push(entry.id);
  seen.add(entry.id);
  if (!entry.ownerFamily || !entry.implementationClass || !Array.isArray(entry.tests) || !Array.isArray(entry.evidence)) unmapped.push(entry.id);
  if (entry.implementationClass === "INVENTORY_BASELINE") summaryOnly.push(entry.id);
  if (entry.implementationClass === "PROXY_ONLY") proxyOnly.push(entry.id);
  if (entry.implementationClass === "ROUTE_ONLY") routeOnly.push(entry.id);
}
for (const values of [duplicateIds, unmapped, summaryOnly, proxyOnly, routeOnly]) values.sort((a, b) => a < b ? -1 : a > b ? 1 : 0);
const audit = {
  schemaVersion: 1,
  task: "M15-02B",
  operation: "BLENDER_PARITY_GAP_AUDIT",
  source: { path: "tests/golden/M15-02A/blender-parity-map.json", sha256: crypto.createHash("sha256").update(fs.readFileSync(inputPath)).digest("hex") },
  summary: { inventoried: map.entries.length, unmapped: unmapped.length, duplicate: duplicateIds.length, summaryOnly: summaryOnly.length, proxyOnly: proxyOnly.length, routeOnly: routeOnly.length, gapCount: unmapped.length + duplicateIds.length + summaryOnly.length + proxyOnly.length + routeOnly.length },
  gaps: { unmapped, duplicateIds, summaryOnly, proxyOnly, routeOnly },
  interpretation: { inventoryBaseline: "SUMMARY_ONLY", parityClaims: "NONE", nextTaskPerEntry: false },
  nextTask: "M15-02C",
};
fs.mkdirSync(path.dirname(output), { recursive: true });
fs.writeFileSync(output, `${JSON.stringify(audit, null, 2)}\n`);
process.stdout.write(`blender-gap-audit-generated inventoried=${audit.summary.inventoried} gaps=${audit.summary.gapCount} summaryOnly=${audit.summary.summaryOnly} output=${output}\n`);