import { expect, test } from "bun:test";
import type { TickerFinancials } from "../types/financials";
import type { TickerRecord } from "../types/ticker";
import { getColumnValue, getSortValue } from "../plugins/builtin/portfolio-list/column-values";
import { buildOverviewStats } from "../plugins/builtin/ticker-detail/overview/model";
import { relativeValuationValues } from "../plugins/builtin/research/relative-valuation-model";

const ticker: TickerRecord = { metadata: {
  ticker: "TEST", name: "Test", exchange: "NASDAQ", currency: "USD",
  portfolios: [], watchlists: [], positions: [], custom: {}, tags: [],
} };
const context = { baseCurrency: "USD", exchangeRates: new Map<string, number>(), now: 1 };

test.each([
  { value: -5.2, text: "N/M", comparable: null },
  { value: 0, text: "N/M", comparable: null },
  { value: undefined, text: "—", comparable: null },
  { value: Number.NaN, text: "—", comparable: null },
  { value: Number.POSITIVE_INFINITY, text: "—", comparable: null },
  { value: 12.3, text: "12.3", comparable: 12.3 },
])("portfolio and peer P/E comparisons handle $value consistently", ({ value, text, comparable }) => {
  const data: TickerFinancials = { annualStatements: [], quarterlyStatements: [], priceHistory: [],
    fundamentals: { trailingPE: value, forwardPE: value, eps: -3.1 } };
  for (const id of ["pe", "forward_pe"]) {
    const column = { id, label: id, width: 8, align: "right" as const };
    expect(getColumnValue(column, ticker, data, context).text).toBe(text);
    expect(getSortValue(column, ticker, data, context)).toBe(comparable);
  }
  expect(relativeValuationValues(data)).toMatchObject({ trailingPE: comparable, forwardPE: comparable });
});

test("overview keeps reported losses and a positive forecast while marking the trailing multiple non-comparable", () => {
  const fundamentals = { trailingPE: -5.2, forwardPE: 12.3, eps: -3.1, financialCurrency: "USD" };
  const stats = buildOverviewStats({ quote: undefined, fundamentals, quoteCurrency: "USD", baseCurrency: "USD", toBase: (value) => value });
  expect(stats.find(({ label }) => label === "P/E (TTM)")?.value).toBe("N/M");
  expect(stats.find(({ label }) => label === "Fwd P/E")?.value).toBe("12.3");
  expect(stats.find(({ label }) => label === "EPS")?.value).toBe("-$3.10");
  expect(fundamentals).toMatchObject({ trailingPE: -5.2, forwardPE: 12.3, eps: -3.1 });
});