/**
 * Production seed — Pelagia Marine Services
 *
 * Idempotent: safe to run multiple times (all operations are upsert).
 * Run with: pnpm db:seed:prod
 *
 * Seeds:
 *  - Users (SSO, no password)
 *  - Sites
 *  - Vessels (assigned to sites)
 *  - Accounting codes (full hierarchy from Rev. 01/251227)
 */

import { PrismaClient, Role } from "@prisma/client";
import { ACCOUNTING_CODES } from "./accounting-codes-data";

const db = new PrismaClient();

// ─── Users ────────────────────────────────────────────────────────────────────

const USERS: { employeeId: string; name: string; email: string; role: Role }[] = [
  { employeeId: "PMS-001", name: "Akshata Teli",        email: "akshata@pelagiamarine.com",         role: Role.ACCOUNTS  },
  { employeeId: "PMS-002", name: "Chhagan Sarang",      email: "chhagan.sarang@pelagiamarine.com",  role: Role.MANAGER   },
  { employeeId: "PMS-003", name: "Dipali K",            email: "dipali.k@pelagiamarine.com",        role: Role.ACCOUNTS  },
  { employeeId: "PMS-004", name: "Eeshan Singh",        email: "eeshan.singh@pelagiamarine.com",    role: Role.TECHNICAL },
  { employeeId: "PMS-005", name: "Kaushal Pal Singh",   email: "kps@pelagiamarine.com",             role: Role.MANAGER   },
  { employeeId: "PMS-006", name: "Manjuprasad B",       email: "manjuprasad.b@pelagiamarine.com",   role: Role.TECHNICAL },
  { employeeId: "PMS-007", name: "Mayur Deore",         email: "mayur@pelagiamarine.com",           role: Role.MANNING   },
  { employeeId: "PMS-008", name: "Nikita Accounts",     email: "nikita.m@pelagiamarine.com",        role: Role.ACCOUNTS  },
  { employeeId: "PMS-009", name: "Rakesh Kumar Pandey", email: "rkp@pelagiamarine.com",             role: Role.MANAGER   },
  { employeeId: "PMS-010", name: "Shailesh B",          email: "shailesh.b@pelagiamarine.com",      role: Role.ACCOUNTS  },
  { employeeId: "PMS-011", name: "Shrikant T",          email: "shrikant.t@pelagiamarine.com",      role: Role.TECHNICAL },
  { employeeId: "PMS-012", name: "Sunil Gupta",         email: "sunil.gupta@pelagiamarine.com",     role: Role.MANNING   },
  { employeeId: "PMS-013", name: "Supriya Sutar",       email: "supriya.s@pelagiamarine.com",       role: Role.TECHNICAL },
  { employeeId: "PMS-014", name: "Tajinder Kaur",       email: "tajinder.kaur@pelagiamarine.com",   role: Role.MANAGER   },
];

// ─── Sites ────────────────────────────────────────────────────────────────────

const SITES: { code: string; name: string }[] = [
  { code: "HOFC", name: "Head Office"   },
  { code: "PMSK", name: "PMS Kochi"     },
  { code: "LACD", name: "Laccadives"    },
  { code: "HLDA", name: "Haldia"        },
  { code: "THKM", name: "Thilakkam"     },
  { code: "KVRT", name: "Kavaratti"     },
  { code: "THNK", name: "Thinnakara"    },
];

// ─── Vessels (code, name, site code) ─────────────────────────────────────────

const VESSELS: { code: string; name: string; siteCode: string }[] = [
  { code: "HNR1",      name: "HNR 1",      siteCode: "HLDA" },
  { code: "HNR2",      name: "HNR 2",      siteCode: "LACD" },
  { code: "HNR3",      name: "HNR 3",      siteCode: "THKM" },
  { code: "HNR4",      name: "HNR 4",      siteCode: "THNK" },
  { code: "CHAMPION",  name: "Champion",   siteCode: "PMSK" },
  { code: "HANUNAM",   name: "Hanunam",    siteCode: "KVRT" },
  { code: "SEJAL",     name: "Sejal",      siteCode: "HLDA" },
  { code: "SEJAL2",    name: "Sejal 2",    siteCode: "LACD" },
  { code: "GD3000",    name: "GD 3000",    siteCode: "THKM" },
  { code: "THILAKKAM", name: "Thilakkam",  siteCode: "THNK" },
];

// ─── Main ─────────────────────────────────────────────────────────────────────

async function main() {
  console.log("🌱  Pelagia production seed starting…\n");

  // ── Users ──────────────────────────────────────────────────────────────────
  console.log("👤  Seeding users…");
  for (const u of USERS) {
    await db.user.upsert({
      where: { email: u.email },
      update: { name: u.name, role: u.role },
      create: {
        employeeId: u.employeeId,
        email: u.email,
        name: u.name,
        role: u.role,
        // No passwordHash — SSO-only login
      },
    });
    console.log(`   ✓ ${u.name} <${u.email}> [${u.role}]`);
  }

  // ── Sites ──────────────────────────────────────────────────────────────────
  console.log("\n📍  Seeding sites…");
  const siteIdMap = new Map<string, string>();
  for (const s of SITES) {
    const site = await db.site.upsert({
      where: { code: s.code },
      update: { name: s.name },
      create: { code: s.code, name: s.name },
    });
    siteIdMap.set(s.code, site.id);
    console.log(`   ✓ ${s.name} (${s.code})`);
  }

  // ── Vessels ────────────────────────────────────────────────────────────────
  console.log("\n🚢  Seeding vessels…");
  for (const v of VESSELS) {
    const siteId = siteIdMap.get(v.siteCode);
    if (!siteId) {
      console.warn(`   ⚠  Unknown site code "${v.siteCode}" for vessel ${v.code} — skipping`);
      continue;
    }
    await db.vessel.upsert({
      where: { code: v.code },
      update: { name: v.name, siteId },
      create: { code: v.code, name: v.name, siteId },
    });
    console.log(`   ✓ ${v.name} (${v.code}) → ${v.siteCode}`);
  }

  // ── Accounting Codes ───────────────────────────────────────────────────────
  console.log("\n📊  Seeding accounting codes…");

  const codeIdMap = new Map<string, string>();

  // Pass 1 — upsert every entry without parent links
  for (const entry of ACCOUNTING_CODES) {
    const rec = await db.account.upsert({
      where: { code: entry.code },
      update: { name: entry.name },
      create: { code: entry.code, name: entry.name },
    });
    codeIdMap.set(entry.code, rec.id);
  }

  // Pass 2 — wire up parent relationships
  for (const entry of ACCOUNTING_CODES) {
    if (entry.parentCode) {
      const parentId = codeIdMap.get(entry.parentCode);
      if (parentId) {
        await db.account.update({
          where: { code: entry.code },
          data: { parentId },
        });
      }
    }
  }

  const leafCount = ACCOUNTING_CODES.filter((e) => {
    return !ACCOUNTING_CODES.some((other) => other.parentCode === e.code);
  }).length;
  console.log(`   ✓ ${ACCOUNTING_CODES.length} codes (${leafCount} selectable leaf items)`);

  console.log("\n✅  Production seed complete.");
}

main()
  .catch((e) => {
    console.error("❌  Seed failed:", e);
    process.exit(1);
  })
  .finally(() => db.$disconnect());