import test from "node:test";
import assert from "node:assert/strict";

import {
  DEFAULT_HOST_ICON_COLOR,
  DEFAULT_HOST_ICON_ID,
  HOST_ICON_COLORS,
  HOST_ICON_DEFAULT_COLORS,
  clearHostIconAppearance,
  isHostIconColorId,
  isHostIconCustomColor,
  isHostIconId,
  normalizeHostIconSelection,
  resolveHostIconAppearance,
  resolveHostIconColorAppearance,
  resolveHostIconDefaultColorHex,
  sanitizeHostIconFields,
} from "./hostIcon.ts";

test("resolveHostIconAppearance returns null for automatic hosts", () => {
  assert.equal(resolveHostIconAppearance({}), null);
  assert.equal(resolveHostIconAppearance({ iconMode: "auto", iconId: "database", iconColor: "blue" }), null);
});

test("automatic hosts may keep a custom palette color without a custom icon", () => {
  assert.deepEqual(sanitizeHostIconFields({ iconMode: "auto", iconColor: "violet" }), {
    iconMode: "auto",
    iconColorMode: "manual",
    iconColor: "violet",
  });
});

test("explicit automatic color ignores stale stored color fields", () => {
  assert.equal(
    resolveHostIconColorAppearance({ iconColorMode: "auto", iconColor: "violet", iconColorCustom: "#12ABEF" }),
    null,
  );
  assert.deepEqual(
    sanitizeHostIconFields({ iconMode: "auto", iconColorMode: "auto", iconColor: "violet", iconColorCustom: "#12ABEF" }),
    {},
  );
  assert.deepEqual(
    resolveHostIconAppearance({ iconMode: "custom", iconId: "database", iconColorMode: "auto", iconColor: "violet" }),
    { iconId: "database", colorHex: "#0891B2" },
  );
});

test("resolveHostIconAppearance returns validated custom icon and color", () => {
  assert.deepEqual(
    resolveHostIconAppearance({ iconMode: "custom", iconId: "database", iconColor: "blue" }),
    { iconId: "database", colorId: "blue", colorHex: "#2563EB" },
  );
});

test("resolveHostIconAppearance ignores invalid custom data", () => {
  assert.equal(
    resolveHostIconAppearance({ iconMode: "custom", iconId: "bad", iconColor: "blue" } as unknown as Parameters<typeof resolveHostIconAppearance>[0]),
    null,
  );
  assert.deepEqual(resolveHostIconAppearance({ iconMode: "custom", iconId: "server", iconColor: "#123456" } as unknown as Parameters<typeof resolveHostIconAppearance>[0]), {
    iconId: "server",
    colorHex: "#2563EB",
  });
});

test("custom type icons use varied default colors", () => {
  assert.equal(HOST_ICON_DEFAULT_COLORS.server, "blue");
  assert.equal(HOST_ICON_DEFAULT_COLORS.database, "cyan");
  assert.equal(resolveHostIconDefaultColorHex("database"), "#0891B2");
  assert.deepEqual(resolveHostIconAppearance({ iconMode: "custom", iconId: "database" }), {
    iconId: "database",
    colorHex: "#0891B2",
  });
});

test("normalizeHostIconSelection creates a complete UI custom selection", () => {
  assert.deepEqual(normalizeHostIconSelection({ iconMode: "custom" }), {
    iconMode: "custom",
    iconId: DEFAULT_HOST_ICON_ID,
  });
});

test("custom hex colors are accepted only through the custom color field", () => {
  assert.equal(isHostIconCustomColor("#12ABef"), true);
  assert.equal(isHostIconCustomColor("12ABef"), false);
  assert.deepEqual(
    resolveHostIconColorAppearance({ iconColorMode: "manual", iconColorCustom: "#12ABEF" }),
    { colorHex: "#12ABEF" },
  );
  assert.deepEqual(
    sanitizeHostIconFields({ iconMode: "auto", iconColorMode: "manual", iconColorCustom: "#12ABEF" }),
    { iconMode: "auto", iconColorMode: "manual", iconColorCustom: "#12ABEF" },
  );
});

test("sanitizeHostIconFields clears incomplete or invalid stored custom data", () => {
  assert.deepEqual(sanitizeHostIconFields({ iconMode: "custom" }), {});
  assert.deepEqual(
    sanitizeHostIconFields({ iconMode: "custom", iconId: "bad", iconColor: "blue" } as unknown as Parameters<typeof sanitizeHostIconFields>[0]),
    {},
  );
});

test("clearHostIconAppearance removes custom icon fields", () => {
  assert.deepEqual(
    clearHostIconAppearance({ iconMode: "custom", iconId: "database", iconColorMode: "manual", iconColor: "blue", iconColorCustom: "#123456", label: "DB" }),
    { label: "DB" },
  );
});

test("host icon validators accept only curated IDs and color IDs", () => {
  assert.equal(isHostIconId("server"), true);
  assert.equal(isHostIconId("globe"), true);
  assert.equal(isHostIconId("server-cog"), true);
  assert.equal(isHostIconId("uploaded-file"), false);
  assert.equal(isHostIconColorId(HOST_ICON_COLORS[0].id), true);
  assert.equal(isHostIconColorId("violet"), true);
  assert.equal(HOST_ICON_COLORS.length, 16);
  assert.equal(isHostIconColorId("#2563EB"), false);
  assert.equal(DEFAULT_HOST_ICON_COLOR, "blue");
});