// ── NatusWheelSpec.js ─────────────────────────────────────────────────────────
//
// Unit specs for natus-wheel.js — planet hover tooltips.
//
// DOM contract assumed:
//   <svg id="id_natus_svg">         — target for NatusWheel.draw()
//   <div id="id_natus_tooltip">     — tooltip portal (position:fixed on page)
//
// Public API under test:
//   NatusWheel.draw(svgEl, data)    — renders wheel; attaches hover listeners
//   NatusWheel.clear()              — empties the SVG (used in afterEach)
//
// Hover contract:
//   mouseover on [data-planet] group  → adds .nw-planet--hover class
//                                       shows #id_natus_tooltip with
//                                       planet name, in-sign degree, sign name
//                                       and ℞ if retrograde
//   mouseout  on [data-planet] group  → removes .nw-planet--hover
//                                       hides #id_natus_tooltip
//
// In-sign degree: ecliptic_longitude % 30  (e.g. 338.4° → 8.4° Pisces)
//
// ─────────────────────────────────────────────────────────────────────────────

describe("NatusWheel — planet tooltips", () => {

    const SYNTHETIC_CHART = {
        planets: {
            Sun:     { sign: "Pisces",    degree: 338.4, retrograde: false },
            Moon:    { sign: "Capricorn", degree: 295.1, retrograde: false },
            Mercury: { sign: "Aquarius",  degree: 312.8, retrograde: true  },
        },
        houses: {
            cusps: [0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330],
            asc: 0,
            mc: 270,
        },
        elements: { Fire: 1, Stone: 2, Air: 1, Water: 3, Time: 1, Space: 2 },
        aspects: [],
        distinctions: {
            "1": 0, "2": 0, "3": 0, "4": 0,
            "5": 0, "6": 0, "7": 0, "8": 0,
            "9": 0, "10": 0, "11": 0, "12": 0,
        },
        house_system: "P",
    };

    let svgEl, tooltipEl;

    beforeEach(() => {
        // SVG element — D3 draws into this
        svgEl = document.createElementNS("http://www.w3.org/2000/svg", "svg");
        svgEl.setAttribute("id", "id_natus_svg");
        svgEl.setAttribute("width",  "400");
        svgEl.setAttribute("height", "400");
        svgEl.style.width  = "400px";
        svgEl.style.height = "400px";
        document.body.appendChild(svgEl);

        // Tooltip portal — same markup as _natus_overlay.html
        tooltipEl = document.createElement("div");
        tooltipEl.id        = "id_natus_tooltip";
        tooltipEl.className = "tt";
        tooltipEl.style.display = "none";
        document.body.appendChild(tooltipEl);

        NatusWheel.draw(svgEl, SYNTHETIC_CHART);
    });

    afterEach(() => {
        NatusWheel.clear();
        svgEl.remove();
        tooltipEl.remove();
    });

    // ── T3 ── hover planet shows name / sign / in-sign degree + glow ─────────

    it("T3: hovering a planet group adds the glow class and shows the tooltip with name, sign, and in-sign degree", () => {
        const sun = svgEl.querySelector("[data-planet='Sun']");
        expect(sun).not.toBeNull("expected [data-planet='Sun'] to exist in the SVG");

        sun.dispatchEvent(new MouseEvent("mouseover", { bubbles: true }));

        expect(sun.classList.contains("nw-planet--hover")).toBe(true);
        expect(tooltipEl.style.display).toBe("block");

        const text = tooltipEl.textContent;
        expect(text).toContain("Sun");
        expect(text).toContain("Pisces");
        // in-sign degree: 338.4° ecliptic − 330° (Pisces start) = 8.4°
        expect(text).toContain("8.4");
    });

    // ── T4 ── retrograde planet shows ℞ ──────────────────────────────────────

    it("T4: hovering a retrograde planet shows ℞ in the tooltip", () => {
        const mercury = svgEl.querySelector("[data-planet='Mercury']");
        expect(mercury).not.toBeNull("expected [data-planet='Mercury'] to exist in the SVG");

        mercury.dispatchEvent(new MouseEvent("mouseover", { bubbles: true }));

        expect(tooltipEl.style.display).toBe("block");
        expect(tooltipEl.textContent).toContain("℞");
    });

    // ── T5 ── mouseout hides tooltip and removes glow ─────────────────────────

    it("T5: mouseout hides the tooltip and removes the glow class", () => {
        const sun = svgEl.querySelector("[data-planet='Sun']");
        expect(sun).not.toBeNull("expected [data-planet='Sun'] to exist in the SVG");

        sun.dispatchEvent(new MouseEvent("mouseover", { bubbles: true }));
        expect(tooltipEl.style.display).toBe("block");

        // relatedTarget is document.body — outside the planet group
        sun.dispatchEvent(new MouseEvent("mouseout", {
            bubbles: true,
            relatedTarget: document.body,
        }));

        expect(tooltipEl.style.display).toBe("none");
        expect(sun.classList.contains("nw-planet--hover")).toBe(false);
    });
});