// @vitest-environment jsdom
import { describe, it, expect, vi } from "vitest";
import { makeTiming, SPEED_PRESETS } from "../../lib/timing.js";
import { createCompose } from "../../views/compose.js";
import { createLearn } from "../../views/learn.js";
import { createSettings } from "../../views/settings.js";
import { createListen } from "../../views/listen.js";
import { createDemo } from "../../views/demo.js";
import { DEFAULT_TAP_PROFILE } from "../../lib/robot-tapper.js";
import { DEFAULT_RULES } from "../../lib/rules.js";

function makeCtx(overrides = {}) {
    const state = {
        mode: "app",
        speed: "normal",
        unitMs: SPEED_PRESETS.normal,
        emitter: "device",
        beepFreq: 2200,
        detector: { highpassHz: 2000, thresholdFactor: 4.0 },
        tap: { ...DEFAULT_TAP_PROFILE },
        demo: { rules: DEFAULT_RULES.map((r) => ({ ...r })) },
    };
    const synth = { play: vi.fn(), stop: vi.fn(), freq: 2200 };
    return {
        reachy: null,
        state,
        timing: () => makeTiming(state.unitMs),
        setSpeed: (p) => { state.speed = p; if (SPEED_PRESETS[p]) state.unitMs = SPEED_PRESETS[p]; },
        synth: () => synth,
        tapper: () => null,
        makeMic: () => ({ start: vi.fn(), stop: vi.fn(), now: () => 0 }),
        selfEchoActive: () => false,
        isTransmitting: () => false,
        transmit: vi.fn(() => Promise.resolve()),
        toast: vi.fn(),
        _synth: synth,
        ...overrides,
    };
}

describe("Compose view", () => {
    it("renders Morse chips for the default message", () => {
        const ctx = makeCtx();
        const { node } = createCompose(ctx);
        const input = node.querySelector(".compose-input");
        expect(input.value).toBe("SOS");
        // SOS = 3 + 3 + 3 = 9 symbol chips
        expect(node.querySelectorAll(".morse-out .pattern").length).toBe(3);
        expect(node.querySelectorAll(".morse-out .dot, .morse-out .dash").length).toBe(9);
    });

    it("updates preview on input and warns on non-encodable chars", () => {
        const ctx = makeCtx();
        const { node } = createCompose(ctx);
        const input = node.querySelector(".compose-input");
        input.value = "Aé";
        input.dispatchEvent(new window.Event("input"));
        expect(node.querySelector(".warn").hidden).toBe(false);
        // 'A' -> .- = 2 chips
        expect(node.querySelectorAll(".morse-out .dot, .morse-out .dash").length).toBe(2);
    });

    it("plays via synth when emitter is device", () => {
        const ctx = makeCtx();
        const { node } = createCompose(ctx);
        node.querySelector(".btn.primary").click();
        expect(ctx._synth.play).toHaveBeenCalled();
    });
});

describe("Learn view", () => {
    it("renders a tile per letter and digit (no punctuation), and plays on tap", () => {
        const ctx = makeCtx();
        const { node } = createLearn(ctx);
        const cells = node.querySelectorAll(".chart-cell");
        expect(cells.length).toBe(26 + 10);
        cells[0].click(); // 'A'
        expect(ctx._synth.play).toHaveBeenCalled();
    });
});

describe("Settings view", () => {
    it("renders calibration sliders and mutates config", () => {
        const ctx = makeCtx();
        const { node } = createSettings(ctx);
        const ranges = node.querySelectorAll("input.range");
        expect(ranges.length).toBeGreaterThanOrEqual(8);
        // first range is the speed unit
        ranges[0].value = "200";
        ranges[0].dispatchEvent(new window.Event("input"));
        expect(ctx.state.unitMs).toBe(200);
    });
});

describe("Listen view", () => {
    it("builds without a mic and shows placeholder decode", () => {
        const ctx = makeCtx();
        const { node } = createListen(ctx);
        expect(node.querySelector(".scope")).toBeTruthy();
        expect(node.querySelector(".decoded-text").textContent).toBe("…");
        expect(node.querySelector(".btn.primary").textContent).toMatch(/Start listening/);
    });
});

describe("Demo view", () => {
    it("renders the big live readout and embeds the alphabet chart", () => {
        const ctx = makeCtx();
        const { node } = createDemo(ctx);
        expect(node.querySelector(".demo-decoded")).toBeTruthy();
        expect(node.querySelector(".scope-big")).toBeTruthy();
        // alphabet chart embedded below
        expect(node.querySelectorAll(".chart-cell").length).toBe(26 + 10);
    });
});

describe("Settings — demo mode", () => {
    it("shows editable conversation rules with the defaults", () => {
        const ctx = makeCtx({ state: { ...makeCtx().state, mode: "demo" } });
        const { node } = createSettings(ctx);
        const rows = node.querySelectorAll(".rule-row");
        expect(rows.length).toBe(DEFAULT_RULES.length);
        // first rule input reflects the default "U OK?"
        expect(node.querySelector(".rule-input").value).toBe(DEFAULT_RULES[0].input);
    });

    it("omits the rules editor in app mode", () => {
        const ctx = makeCtx();
        const { node } = createSettings(ctx);
        expect(node.querySelector(".rule-row")).toBeNull();
    });
});