// Read-only diagnostic: introspect the temp DB created by `prisma migrate deploy`
// to check whether the migrated schema matches schema.prisma (drift check).
// Usage: node audit-results/tmp/inspect-db.cjs <path-to-sqlite-db>
const path = require("node:path");
const Database = require("better-sqlite3");

const dbPath = process.argv[2];
if (!dbPath) {
  console.error("usage: node inspect-db.cjs <db-path>");
  process.exit(2);
}

const db = new Database(path.resolve(dbPath), { readonly: true });

const tables = db
  .prepare("SELECT name FROM sqlite_master WHERE type='table' ORDER BY name")
  .all()
  .map((r) => r.name);

console.log("=== TABLES ===");
console.log(tables.join(", "));
console.log("Has MaterialGroup table:", tables.includes("MaterialGroup"));

for (const table of ["Deck", "QuizSet", "ShareLink", "MaterialGroup"]) {
  if (tables.includes(table)) {
    const cols = db
      .prepare(`PRAGMA table_info('${table}')`)
      .all()
      .map((r) => r.name);
    console.log(`--- ${table} columns ---`);
    console.log(cols.join(", "));
    if (table === "Deck" || table === "QuizSet" || table === "ShareLink") {
      console.log(`  -> has groupId:`, cols.includes("groupId"));
    }
  } else {
    console.log(`--- ${table}: MISSING TABLE ---`);
  }
}

const indexes = db
  .prepare("SELECT name, tbl_name FROM sqlite_master WHERE type='index' ORDER BY name")
  .all()
  .map((r) => `${r.tbl_name}.${r.name}`);
console.log("=== INDEXES (count) ===", indexes.length);

// Confirm migrations table
const applied = db.prepare("SELECT migration_name FROM _prisma_migrations ORDER BY started_at").all();
console.log("=== APPLIED MIGRATIONS ===");
applied.forEach((m) => console.log(" -", m.migration_name));

db.close();
console.log("DONE");