/**
 * 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";
import bcrypt from "bcryptjs";

const hash = (p: string) => bcrypt.hash(p, 12);

const db = new PrismaClient();

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

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

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

type SiteEntry = { code: string; name: string; address?: string; latitude?: number; longitude?: number };

const SITES: SiteEntry[] = [
  {
    code: "HOFC", name: "Head Office Mumbai",
    address:   "ZION, 409-410, Sector 10, Kharghar, Panvel, Maharashtra 410210",
    latitude:   19.0449, longitude: 73.0758,
  },
  {
    code: "HLDA", name: "Haldia Port",
    address:   "Haldia Dock Complex, Haldia, West Bengal 721604",
    latitude:   22.0286, longitude: 88.0780,
  },
  {
    code: "KCHI", name: "Kochi",
    address:   "LNG Terminal, Survey No. 347, Puthuvype, Kochi, Kerala 682508",
    latitude:   10.0261, longitude: 76.2193,
  },
  {
    code: "PTNA", name: "Patna",
    address:   "Gaighat, Ashok Rajpath, Gulzarbagh, Patna, Bihar 800007",
    latitude:   25.6097, longitude: 85.1376,
  },
];

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

const VESSELS: { code: string; name: string }[] = [
  {   name: "Head Office", code: "HOFC"   },
  {   name: "CSD PMS KOCHI", code: "PMSK" },
  {   name: "CSD H&R 1", code: "HNR1" },
  {   name: "CSD H&R 3", code: "HNR3" },
  {   name: "CSD H&R 4", code: "HNR4" },
  {   name: "CSD CHAMPION", code: "CHMP"  },
  {   name: "CSD HANUMAN", code: "HANU"   },
  {   name: "KAVARATTI", code: "KVRT" },
  {   name: "LACCADIVES", code: "LACD"    },
  {   name: "THINNAKARA", code: "THNK"    },
  {   name: "THILLAAKAM", code: "THKM"    },
  {   name: "GD3000", code: "GD30"    },
];

// ─── 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}]`);
  }

  const admin = await db.user.upsert({
      where: { email: "admin@pelagiamarine.com" },
      update: {},
      create: { employeeId: "ADM-001", email: "admin@pelagiamarine.com", name: "System Admin", passwordHash: await hash("admin1234"), role: Role.ADMIN },
    });

  // ── Sites ──────────────────────────────────────────────────────────────────
  console.log("\n📍  Seeding sites…");
  for (const s of SITES) {
    const data = {
      name:      s.name,
      address:   s.address   ?? null,
      latitude:  s.latitude  ?? null,
      longitude: s.longitude ?? null,
    };
    await db.site.upsert({
      where:  { code: s.code },
      update: data,
      create: { code: s.code, ...data },
    });
    const geo = s.latitude ? ` (${s.latitude.toFixed(4)}, ${s.longitude!.toFixed(4)})` : "";
    console.log(`   ✓ ${s.name} (${s.code})${geo}`);
  }

  // ── Vessels ────────────────────────────────────────────────────────────────
  console.log("\n🚢  Seeding vessels…");
  for (const v of VESSELS) {
    await db.vessel.upsert({
      where: { code: v.code },
      update: { name: v.name },
      create: { code: v.code, name: v.name },
    });
    console.log(`   ✓ ${v.name} (${v.code})`);
  }

  // ── 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());