import { describe, expect, it } from "@suaveplan/testing/runner";
import { AUDIENCE_RULES_CODES, AudienceRulesError } from "./error-codes.js";

describe("AUDIENCE_RULES_CODES + AudienceRulesError", () => {
    it("registers four namespaced codes", { timeout: 5000 }, () => {
        expect(AUDIENCE_RULES_CODES.INVALID_INPUT).toBe(
            "AUDIENCE_RULES.INVALID_INPUT"
        );
        expect(AUDIENCE_RULES_CODES.SEGMENT_NOT_FOUND).toBe(
            "AUDIENCE_RULES.SEGMENT_NOT_FOUND"
        );
        expect(AUDIENCE_RULES_CODES.UNKNOWN_OPERATOR).toBe(
            "AUDIENCE_RULES.UNKNOWN_OPERATOR"
        );
        expect(AUDIENCE_RULES_CODES.PROVIDER_FAILED).toBe(
            "AUDIENCE_RULES.PROVIDER_FAILED"
        );
    });

    it("every registered code constructs an AudienceRulesError with namespaced code", {
        timeout: 5000,
    }, () => {
        for (const code of Object.values(AUDIENCE_RULES_CODES)) {
            const err = new AudienceRulesError(code, "msg");
            expect(err).toBeInstanceOf(AudienceRulesError);
            expect(err.code).toBe(code);
            expect(err.message).toBe("msg");
        }
    });

    it("every code exposes its discriminants on the instance", {
        timeout: 5000,
    }, () => {
        const err = new AudienceRulesError(
            AUDIENCE_RULES_CODES.SEGMENT_NOT_FOUND,
            "missing",
            { segmentId: "seg_1", tenantId: "tenant-1" }
        );
        expect(err.segmentId).toBe("seg_1");
        expect(err.tenantId).toBe("tenant-1");
    });

    it("leaves discriminants undefined when not provided", {
        timeout: 5000,
    }, () => {
        const err = new AudienceRulesError(
            AUDIENCE_RULES_CODES.INVALID_INPUT,
            "x"
        );
        expect(err.segmentId).toBeUndefined();
        expect(err.tenantId).toBeUndefined();
    });

    it("preserves cause across constructor", { timeout: 5000 }, () => {
        const cause = new Error("root");
        const err = new AudienceRulesError(
            AUDIENCE_RULES_CODES.PROVIDER_FAILED,
            "wrapped",
            { cause }
        );
        expect(err.cause).toBe(cause);
    });
});