/// <reference types="node" />
import { PrismaClient } from "@prisma/client";
import { allocateIncome } from "../src/allocator.ts"; // adjust if your path differs

const prisma = new PrismaClient();
const cents = (dollars: number) => BigInt(Math.round(dollars * 100));

async function main() {
  const userId = "demo-user-1"; // dev-only, string id per schema

  // 1) User
  await prisma.user.upsert({
    where: { id: userId },
    create: { id: userId, email: "demo@example.com" },
    update: {},
  });

  // 2) Variable categories (sum = 100)
  const categories = [
    { name: "Savings", percent: 40, isSavings: true,  priority: 10 },
    { name: "Needs",   percent: 40, isSavings: false, priority: 20 },
    { name: "Wants",   percent: 20, isSavings: false, priority: 30 },
  ];

  for (const c of categories) {
    await prisma.variableCategory.upsert({
      where: { userId_name: { userId, name: c.name } },
      create: { userId, name: c.name, percent: c.percent, isSavings: c.isSavings, priority: c.priority, balanceCents: 0n },
      update: { percent: c.percent, isSavings: c.isSavings, priority: c.priority },
    });
  }

  // 3) Fixed plans
  const today = new Date();
  const monthStart = new Date(today.getFullYear(), today.getMonth(), 1);
  const dueNext = new Date(today.getFullYear(), today.getMonth(), 1);
  dueNext.setMonth(dueNext.getMonth() + 1);

  const plans = [
    { name: "Rent",      total: cents(1200), priority: 10, cycleStart: monthStart, dueOn: dueNext },
    { name: "Utilities", total: cents(300),  priority: 20, cycleStart: monthStart, dueOn: dueNext },
  ];

  for (const p of plans) {
    await prisma.fixedPlan.upsert({
      where: { userId_name: { userId, name: p.name } },
      create: {
        userId, name: p.name,
        totalCents: p.total, fundedCents: 0n,
        priority: p.priority, cycleStart: p.cycleStart, dueOn: p.dueOn,
        fundingMode: "auto-on-deposit"
      },
      update: {
        totalCents: p.total, priority: p.priority,
        cycleStart: p.cycleStart, dueOn: p.dueOn
      },
    });
  }

  // 4) Seed income + allocate
  const deposit = 2500; // dollars
  const nowISO = new Date().toISOString();

  const income = await prisma.incomeEvent.create({
    data: { userId, postedAt: new Date(nowISO), amountCents: cents(deposit) },
    select: { id: true },
  });

  const result = await allocateIncome(
    prisma,         // db
    userId,         // user id (string)
    Math.round(deposit * 100), // depositCentsNum (number is fine)
    nowISO,         // ISO timestamp
    income.id       // incomeEventId (string)
  );

  console.log("Seed complete\n", JSON.stringify(result, null, 2));
}

main().catch((e) => {
  console.error(e);
  process.exit(1);
}).finally(async () => {
  await prisma.$disconnect();
});