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

import { resolveOutboundTarget } from "./targets.js";

describe("resolveOutboundTarget", () => {
  it.each([
    {
      name: "normalizes whatsapp target when provided",
      input: { provider: "whatsapp" as const, to: " (555) 123-4567 " },
      expected: { ok: true as const, to: "+5551234567" },
    },
    {
      name: "keeps whatsapp group targets",
      input: { provider: "whatsapp" as const, to: "120363401234567890@g.us" },
      expected: { ok: true as const, to: "120363401234567890@g.us" },
    },
    {
      name: "normalizes prefixed/uppercase whatsapp group targets",
      input: {
        provider: "whatsapp" as const,
        to: " WhatsApp:Group:120363401234567890@G.US ",
      },
      expected: { ok: true as const, to: "120363401234567890@g.us" },
    },
    {
      name: "falls back to whatsapp allowFrom",
      input: { provider: "whatsapp" as const, to: "", allowFrom: ["+1555"] },
      expected: { ok: true as const, to: "+1555" },
    },
    {
      name: "normalizes whatsapp allowFrom fallback targets",
      input: {
        provider: "whatsapp" as const,
        to: "",
        allowFrom: ["whatsapp:(555) 123-4567"],
      },
      expected: { ok: true as const, to: "+5551234567" },
    },
    {
      name: "rejects invalid whatsapp target",
      input: { provider: "whatsapp" as const, to: "wat" },
      expectedErrorIncludes: "WhatsApp",
    },
    {
      name: "rejects whatsapp without to when allowFrom missing",
      input: { provider: "whatsapp" as const, to: " " },
      expectedErrorIncludes: "WhatsApp",
    },
    {
      name: "rejects whatsapp allowFrom fallback when invalid",
      input: { provider: "whatsapp" as const, to: "", allowFrom: ["wat"] },
      expectedErrorIncludes: "WhatsApp",
    },
  ])("$name", ({ input, expected, expectedErrorIncludes }) => {
    const res = resolveOutboundTarget(input);
    if (expected) {
      expect(res).toEqual(expected);
      return;
    }
    expect(res.ok).toBe(false);
    if (!res.ok) {
      expect(res.error.message).toContain(expectedErrorIncludes);
    }
  });

  it("rejects telegram with missing target", () => {
    const res = resolveOutboundTarget({ provider: "telegram", to: " " });
    expect(res.ok).toBe(false);
    if (!res.ok) {
      expect(res.error.message).toContain("Telegram");
    }
  });

  it("rejects webchat delivery", () => {
    const res = resolveOutboundTarget({ provider: "webchat", to: "x" });
    expect(res.ok).toBe(false);
    if (!res.ok) {
      expect(res.error.message).toContain("WebChat");
    }
  });
});