// The balance lists and Home's ETH line show a balance as Send does (README.md,
// Amounts): cut to four decimal places, never rounded up, and a nonzero amount
// never shown as zero
// (https://git.eeqj.de/sneak/AutistMask/issues/757).
//
// Driven through the real popup over a stored profile on Ethereum Mainnet.

const {
    ADDRESS,
    bootPopup,
    cleanupPopup,
    unversionedValidProfile,
} = require("./support/popupBoot");
const { balanceLine } = require("../src/popup/views/helpers");

const USDC = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48";

afterEach(() => {
    cleanupPopup();
});

// The quantity cell of a balance row.
function quantity(row) {
    return row.match(/<span>([^<]*)<\/span><\/span>/)[1];
}

// The popup on Home over one address holding `eth` ETH and `usdc` USDC.
function bootHolding(eth, usdc) {
    const profile = unversionedValidProfile({
        trackedTokens: [{ address: USDC, symbol: "USDC", decimals: 6 }],
    });
    profile.wallets[0].addresses[0] = {
        address: ADDRESS,
        balance: eth,
        tokenBalances: [
            { address: USDC, symbol: "USDC", decimals: 6, balance: usdc },
        ],
    };
    return bootPopup(profile);
}

// The balance row for `token` in Home's wallet list.
function homeRow(page, token) {
    return page
        .node("wallet-list")
        .innerHTML.split("<div ")
        .find((row) => row.includes('data-token="' + token + '"'));
}

describe("balanceLine", () => {
    test("cuts 0.99996 to 0.9999, never rounding it up to 1.0000", () => {
        expect(quantity(balanceLine("ETH", "0.99996", null, "ETH"))).toBe(
            "0.9999",
        );
    });

    test("shows 0.00004 as 0.00004, not 0.0000", () => {
        expect(quantity(balanceLine("USDC", "0.00004", null, USDC))).toBe(
            "0.00004",
        );
    });
});

describe("Home", () => {
    test("the ETH line and the balance list read 0.99996 ETH as 0.9999", async () => {
        const page = await bootHolding("0.99996", "0.00004");

        expect(page.visibleViews()).toEqual(["main"]);
        expect(page.text("total-value")).toBe("0.9999 ETH");
        expect(quantity(homeRow(page, "ETH"))).toBe("0.9999");
    });

    test("the balance list reads 0.00004 USDC as 0.00004", async () => {
        const page = await bootHolding("0.99996", "0.00004");

        expect(quantity(homeRow(page, USDC.toLowerCase()))).toBe("0.00004");
    });
});