#!/usr/bin/env node
/**
 * e2e-formation-order.mjs - end-to-end check of the corporate formation order flow.
 *
 * Verifies the real plumbing WITHOUT taking a real Stripe payment or making a real
 * state filing:
 *   1. Name search against the live state portal (NV + TX) via the worker.
 *   2. Insert a test formation_orders row (the same columns the intake route writes).
 *   3. Replay the EXACT ERPNext Sales Order creation logic from checkout.ts
 *      (BUSINESS-FORMATION + STATE-FILING-FEE line items) against the real ERPNext.
 *   4. Verify: the SO exists, has the right items, and formation_orders.erpnext_sales_order
 *      was set. Then CLEAN UP (cancel+delete the test SO, delete the test order row)
 *      unless --keep is passed.
 *
 * Run inside the api container on prod (it has node + the compiled erpnext client +
 * DATABASE_URL + WORKER_URL):
 *   docker exec performancewest-api-1 node /app/scripts/e2e-formation-order.mjs [--keep] [--no-namesearch]
 *
 * Exit code 0 = all checks passed; non-zero = a check failed (CI-friendly).
 */
import pg from "pg";

const KEEP = process.argv.includes("--keep");
const SKIP_NAMESEARCH = process.argv.includes("--no-namesearch");
const WORKER_URL = process.env.WORKER_URL || "http://workers:8090";

// Load the app's own ERPNext client (compiled).
const erp = await import("/app/dist/erpnext-client.js");
const { createResource, getResource, callMethod, searchLink, deleteResource } = erp;

// Mirror checkout.ts findOrCreateCustomer using the exported client primitives
// (the route-level helper is not exported, so reproduce its essentials here).
async function findOrCreateCustomer(email, name) {
  try {
    const existing = await searchLink("Customer", email, { searchfield: "email_id" });
    if (existing && existing.length && existing[0].value) return { customerName: existing[0].value };
  } catch { /* fall through to create */ }
  const c = await createResource("Customer", {
    customer_name: name || email,
    customer_type: "Company",
    customer_group: "All Customer Groups",
    territory: "All Territories",
    email_id: email,
  });
  return { customerName: c.name };
}

const pool = new pg.Pool({ connectionString: process.env.DATABASE_URL });

let failures = 0;
const ok = (m) => console.log(`  [PASS] ${m}`);
const bad = (m) => { console.log(`  [FAIL] ${m}`); failures++; };
const info = (m) => console.log(m);

const toDollars = (c) => Math.round(c) / 100;

// Test cases: NV LLC and TX corp (the two DEXIT destinations).
const CASES = [
  { state: "NV", entity_type: "llc",  name: "PW E2E Test Holdings",       service: 17900, stateFee: 7500 },
  { state: "TX", entity_type: "corporation", name: "PW E2E Test Industries",     service: 17900, stateFee: 30000 },
];

async function nameSearch(state, name) {
  if (SKIP_NAMESEARCH) { info(`  (skipped name search for ${state})`); return null; }
  try {
    const r = await fetch(`${WORKER_URL}/name-search`, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify({ state_code: state, name }),
      signal: AbortSignal.timeout(45000),
    });
    if (!r.ok) { bad(`name-search ${state} HTTP ${r.status}`); return null; }
    const j = await r.json();
    ok(`name search ${state} reachable (available=${j.available ?? "?"})`);
    return j;
  } catch (e) {
    bad(`name-search ${state} failed: ${e.message} (worker reachable from this container?)`);
    return null;
  }
}

async function runCase(tc) {
  info(`\n=== ${tc.state} ${tc.entity_type} formation ===`);
  const year = new Date().getFullYear();
  const orderNumber = `PW-E2E-${tc.state}-${Date.now().toString().slice(-7)}`;
  const email = `e2e-formation+${tc.state.toLowerCase()}@performancewest.net`;

  await nameSearch(tc.state, tc.name);

  // 1) insert the test order (mirror the intake route columns)
  let orderRow;
  try {
    const r = await pool.query(
      `INSERT INTO formation_orders (
         order_number, customer_name, customer_email,
         state_code, entity_type, entity_name,
         include_ra_service, include_ein, expedited,
         state_fee_cents, service_fee_cents, total_cents, status
       ) VALUES ($1,$2,$3,$4,$5,$6,TRUE,FALSE,FALSE,$7,$8,$9,'received')
       RETURNING id, order_number`,
      [orderNumber, "PW E2E Test", email, tc.state, tc.entity_type, tc.name,
       tc.stateFee, tc.service, tc.service + tc.stateFee],
    );
    orderRow = r.rows[0];
    ok(`inserted formation_orders row ${orderRow.order_number}`);
  } catch (e) {
    bad(`formation_orders insert failed: ${e.message}`);
    return { orderNumber, soName: null };
  }

  // 2) ERPNext customer
  let customer;
  try {
    const { customerName } = await findOrCreateCustomer(email, "PW E2E Test");
    customer = customerName;
    ok(`ERPNext customer: ${customer}`);
  } catch (e) {
    bad(`findOrCreateCustomer failed: ${e.message}`);
  }

  // 3) replay the EXACT SO creation from checkout.ts (formation branch)
  let soName = null;
  if (customer) {
    try {
      const so = await createResource("Sales Order", {
        customer,
        delivery_date: new Date(Date.now() + 30 * 86400000).toISOString().split("T")[0],
        custom_external_order_id: orderNumber,
        custom_order_type: "formation",
        workflow_state: "Received",
        items: [
          { item_code: "BUSINESS-FORMATION", description: `${tc.entity_type} Formation — ${tc.state}`, qty: 1, rate: toDollars(tc.service) },
          { item_code: "STATE-FILING-FEE",   description: `${tc.state} state filing fee (government fee)`, qty: 1, rate: toDollars(tc.stateFee) },
        ],
      });
      soName = so.name;
      ok(`created Sales Order ${soName}`);
      await pool.query(`UPDATE formation_orders SET erpnext_sales_order = $1 WHERE order_number = $2`, [soName, orderNumber]);
    } catch (e) {
      bad(`Sales Order creation failed: ${e.message}`);
    }
  }

  // 4) verify the SO + line items + DB linkage
  if (soName) {
    try {
      const so = await getResource("Sales Order", soName);
      const codes = (so.items || []).map((i) => i.item_code);
      const total = Number(so.total || 0);
      if (codes.includes("BUSINESS-FORMATION") && codes.includes("STATE-FILING-FEE")) ok(`SO line items correct: ${codes.join(", ")}`);
      else bad(`SO line items wrong: ${codes.join(", ")}`);
      const expected = toDollars(tc.service + tc.stateFee);
      if (Math.abs(total - expected) < 0.01) ok(`SO total = $${total} (expected $${expected})`);
      else bad(`SO total $${total} != expected $${expected}`);

      const dbCheck = await pool.query(`SELECT erpnext_sales_order FROM formation_orders WHERE order_number=$1`, [orderNumber]);
      if (dbCheck.rows[0]?.erpnext_sales_order === soName) ok(`formation_orders.erpnext_sales_order linked`);
      else bad(`DB linkage missing (got ${dbCheck.rows[0]?.erpnext_sales_order})`);
    } catch (e) {
      bad(`SO verification fetch failed: ${e.message}`);
    }
  }

  // 5) cleanup
  if (!KEEP) {
    if (soName) {
      try { await callMethod("frappe.client.cancel", { doctype: "Sales Order", name: soName }); } catch {}
      try { await deleteResource("Sales Order", soName); } catch {}
      info(`  cleaned up SO ${soName}`);
    }
    try { await pool.query(`DELETE FROM formation_orders WHERE order_number=$1`, [orderNumber]); info(`  cleaned up order row`); } catch {}
  } else {
    info(`  --keep: left ${orderNumber} / ${soName} in place`);
  }
  return { orderNumber, soName };
}

info("=== formation order e2e harness ===");
info(`worker: ${WORKER_URL} | namesearch: ${!SKIP_NAMESEARCH} | keep: ${KEEP}\n`);
for (const tc of CASES) await runCase(tc);

await pool.end();
info(`\n=== ${failures === 0 ? "ALL CHECKS PASSED" : failures + " CHECK(S) FAILED"} ===`);
process.exit(failures === 0 ? 0 : 1);