// 演示数据：仅当足迹表为空时写入，用于界面验收
import { getDb, buildSearchText, migrateSync, uuidv7, hlcNext, DEMO_ROWS, DEMO_SEMESTERS } from './db.mjs';

const db = getDb();
const count = db.prepare('SELECT COUNT(*) AS c FROM footprint').get().c;
if (count > 0) {
  console.log('已存在 ' + count + ' 条记录，跳过演示数据（如需重建请删除 app/.data 目录）');
  process.exit(0);
}

const types = Object.fromEntries(
  db.prepare('SELECT id, name FROM footprint_type').all().map(r => [r.name, r.id])
);
const dims = Object.fromEntries(
  db.prepare('SELECT id, name FROM dimension').all().map(r => [r.name, r.id])
);

// [type, title, role, level, grade, organizer, start, end, status, desc, result, tags, dims, extras, metrics]
// 数据统一维护在 ./db.mjs（DEMO_ROWS / DEMO_SEMESTERS）

const ins = db.prepare(`INSERT INTO footprint (type_id, title, role, level, award_grade, organizer,
  start_date, end_date, status, description, result, tags, search_text, extras, metrics)
  VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)`);
const setDim = db.prepare('INSERT OR IGNORE INTO footprint_dimension (footprint_id, dimension_id) VALUES (?,?)');

for (const [t, title, role, level, grade, organizer, start, end, status, desc, result, tags, dimNames, extras, metrics] of DEMO_ROWS) {
  const search = buildSearchText(title, desc, result, tags, extras);
  const r = ins.run(types[t], title, role, level, grade, organizer, start, end, status, desc, result,
    JSON.stringify(tags), search, JSON.stringify(extras), JSON.stringify(metrics));
  const id = Number(r.lastInsertRowid);
  for (const name of dimNames) {
    if (dims[name]) setDim.run(id, dims[name]);
  }
}

console.log('已写入 ' + DEMO_ROWS.length + ' 条演示记录');

// ---------- 学年学科成绩演示 ----------
const semIns = db.prepare('INSERT INTO semester (term, gpa, rank, total_students, uuid, hlc, origin) VALUES (?,?,?,?,?,?,?)');
const couIns = db.prepare('INSERT INTO course_grade (semester_id, course_name, credit, score, grade_point, uuid, hlc, origin) VALUES (?,?,?,?,?,?,?,?)');



for (const s of DEMO_SEMESTERS) {
  const h1 = hlcNext(db);
  const sid = Number(semIns.run(s.term, s.gpa, s.rank, s.total, uuidv7(), h1, 'seed').lastInsertRowid);
  for (const [name, credit, score, gp] of s.courses) {
    couIns.run(sid, name, credit, score, gp, uuidv7(), hlcNext(db), 'seed');
  }
}
console.log('已写入 ' + DEMO_SEMESTERS.length + ' 个学期、' + DEMO_SEMESTERS.reduce((a, s) => a + s.courses.length, 0) + ' 门课程成绩');

migrateSync(getDb());
console.log('同步元数据（uuid/hlc/origin）已回填');