import { describe, expect, it } from "vitest";

import {
	getRankPermissionColumn,
	RANK_GENERAL_FIELDS,
	splitRankUpdateFields,
	toPermissionValue,
} from "./permission-ranks";

describe("getRankPermissionColumn", () => {
	it("returns rank_N for valid rank", () => {
		expect(getRankPermissionColumn(1)).toBe("rank_1");
		expect(getRankPermissionColumn(255)).toBe("rank_255");
	});

	it("throws for invalid rank", () => {
		expect(() => getRankPermissionColumn(0)).toThrow("Invalid rank id");
		expect(() => getRankPermissionColumn(256)).toThrow("Invalid rank id");
		expect(() => getRankPermissionColumn(1.5)).toThrow("Invalid rank id");
		expect(() => getRankPermissionColumn(-1)).toThrow("Invalid rank id");
	});
});

describe("toPermissionValue", () => {
	it("returns numeric value for valid input", () => {
		expect(toPermissionValue(5)).toBe(5);
		expect(toPermissionValue("10")).toBe(10);
		expect(toPermissionValue("255")).toBe(255);
	});

	it("clamps to 0-255 range", () => {
		expect(toPermissionValue(-1)).toBe(0);
		expect(toPermissionValue(256)).toBe(255);
		expect(toPermissionValue(999)).toBe(255);
	});

	it("returns 0 for non-numeric strings", () => {
		expect(toPermissionValue("abc")).toBe(0);
		expect(toPermissionValue(NaN)).toBe(0);
	});
});

describe("splitRankUpdateFields", () => {
	it("splits rank general fields from permission fields", () => {
		const { rankFields, permissionFields } = splitRankUpdateFields({
			rank_name: "Moderator",
			level: 5,
			cmd_ban: "1",
			cmd_kick: "1",
		});
		expect(rankFields).toEqual({ rank_name: "Moderator", level: 5 });
		expect(permissionFields).toEqual({ cmd_ban: 1, cmd_kick: 1 });
	});

	it("skips id field and invalid keys", () => {
		const { rankFields, permissionFields } = splitRankUpdateFields({
			id: 5,
			"": "test",
		});
		expect(rankFields).toEqual({});
		expect(permissionFields).toEqual({});
	});

	it("returns empty objects for empty input", () => {
		const { rankFields, permissionFields } = splitRankUpdateFields({});
		expect(rankFields).toEqual({});
		expect(permissionFields).toEqual({});
	});
});

describe("RANK_GENERAL_FIELDS", () => {
	it("contains expected fields", () => {
		expect(RANK_GENERAL_FIELDS.has("rank_name")).toBe(true);
		expect(RANK_GENERAL_FIELDS.has("badge")).toBe(true);
		expect(RANK_GENERAL_FIELDS.has("level")).toBe(true);
		expect(RANK_GENERAL_FIELDS.has("nonexistent")).toBe(false);
	});
});