import { describe, expect, test } from "bun:test"
import { parseConfig } from "./config"
import type { DetectConfig } from "./types"

describe("parseConfig (the CLI's --config trust boundary)", () => {
	test("#given a full valid config #then every field is kept", () => {
		const input: DetectConfig = {
			rules: { "low-contrast": "warning", "bounce-easing": "off" },
			allowFonts: ["Inter"],
			allowEasings: ["cubic-bezier(0.34, 1.56, 0.64, 1)"],
			designTokens: { fonts: ["Inter"], colors: ["#111"], radii: [8, 12], fontSizes: [12, 16, 24] },
		}
		expect(parseConfig(input)).toEqual(input)
	})

	test.each([
		["a non-object", [], "config must be a JSON object"],
		["an unknown key", { severity: "error" }, "unknown config key 'severity'"],
		["a bad rule setting", { rules: { "low-contrast": "fatal" } }, "rules.low-contrast must be one of error, warning, advisory, off"],
		["a non-string font", { allowFonts: [12] }, "allowFonts must be an array of family names"],
		["an unknown token key", { designTokens: { shadows: [] } }, "unknown designTokens key 'shadows'"],
		["a non-numeric radius", { designTokens: { radii: ["8px"] } }, "designTokens.radii must be an array of px numbers"],
	])("#given %s #then it is refused with a message naming the field", (_name, input, message) => {
		expect(parseConfig(input)).toBe(message)
	})
})