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

import {
  getMessageContext,
  isMessageSenderAllowed,
  MESSAGE_CONTEXT_POLICY,
} from "./message-policy";
import type { MessageType } from "../shared/types";

describe("message context policy", () => {
  it("classifies every declared message type", () => {
    const policy = MESSAGE_CONTEXT_POLICY as Record<string, string>;
    const declaredTypes: MessageType[] = [
      "GET_SYNC_ALERTS", "CLEAR_CLIPBOARD", "GET_PENDING_VOUCHED_DEVICES", "CONFIRM_VOUCHED_DEVICE",
      "REJECT_VOUCHED_DEVICE", "VOUCHED_DEVICE_PENDING", "ROTATE_SYNC_IDENTITY", "DEVICE_KEY_ROTATED",
      "UNLOCK", "UNLOCK_WITH_PIN", "GET_PIN_STATUS", "LOCK", "IS_UNLOCKED", "HAS_VAULT", "GET_ENTRIES", "EXPORT_ENTRIES", "ADD_ENTRY",
      "BATCH_ADD_ENTRIES", "RESTORE_ENTRIES", "CLEAR_VAULT_ENTRIES", "UPDATE_ENTRY", "ADD_ADDITIONAL_URL",
      "REQUEST_REMEMBER_SITE",
      "DELETE_ENTRY", "AUTOFILL_QUERY", "COPY", "CREATE_VAULT", "CREATE_VAULT_FROM_ROOT_KEY",
      "GET_ENTRY_FOR_FILL", "GET_ENTRY_FOR_EDIT", "CHECK_ALL_BREACHES", "GET_SETTINGS", "UPDATE_SETTINGS",
      "SETUP_PIN", "DISABLE_PIN", "FIRE_CANARY_PING", "ACTIVATE_LICENSE", "GET_LICENSE", "GET_LICENSE_KEY",
      "IS_DURESS_ENABLED", "SETUP_DURESS", "DISABLE_DURESS", "VERIFY_MAIN_PASSWORD", "CHANGE_PASSWORD",
      "GET_SITE_PASSWORD_POLICY", "GET_LOCAL_IDENTITY", "LIST_PAIRED_DEVICES", "RENAME_PAIRED_DEVICE",
      "UNPAIR_DEVICE", "RENAME_LOCAL_DEVICE", "LIST_PENDING_ADOPTION_HOLDERS", "REMOVE_PENDING_ADOPTION_HOLDER", "START_ADOPTION_SOURCE", "START_ADOPTION_RECEIVER",
      "CANCEL_ADOPTION_SOURCE", "SOURCE_SAS_DECISION", "RECEIVER_SAS_DECISION", "ADOPTION_SOURCE_SAS", "ADOPTION_SOURCE_RESULT",
      "TRIGGER_SYNC", "GET_SYNC_STATE", "GET_SYNC_GENERATION", "SECURE_RESET", "GET_SYNC_SETTINGS", "SET_SYNC_SETTINGS", "GET_PENDING_PASSKEY",
      "APPROVE_PASSKEY", "DENY_PASSKEY", "GET_PASSKEY_PROVIDER_STATE", "SET_PASSKEY_PROVIDER_ENABLED",
      "GET_DELETED_ENTRIES", "RESTORE_ENTRY", "PURGE_ENTRY", "PURGE_EXPIRED_TRASH", "GET_VAULT_HISTORY",
      "RESTORE_VAULT_SNAPSHOT", "COUNT_DUPLICATES", "DEDUPLICATE_ENTRIES", "RECORD_MANUAL_SUMMON",
      "DECLINE_CARD_SAVE", "IS_CARD_DECLINED", "GET_VAULT_STATUS", "GET_ADVANCED_HEALTH_REPORT",
      "DEACTIVATE_LICENSE", "GET_IDENTITIES", "DESTROY_VAULT", "INITIATE_FIREFOX_PASSKEY_CREATE",
      "COMPLETE_FIREFOX_PASSKEY_CREATE", "PASSKEY_OFFER_DECLINE", "GET_PASSKEY_OFFER_DECLINED",
      "GET_PASSKEY_FOR_DOMAIN", "PASSKEY_HAS_CREDENTIALS", "PASSKEY_CREATE", "PASSKEY_GET",
      "MARK_PASSKEY_BANNER_SHOWN",
      "PASSKEY_AUTH_RESPONSE", "VALIDATE_RECOVERY_WORDS", "RECOVER_WITH_WORDS", "GET_RECOVERY_WORDS",
      "GET_RECOVERY_CONFIRM_PENDING", "SET_RECOVERY_CONFIRM_PENDING", "CLEAR_RECOVERY_CONFIRM_PENDING",
      "GET_IDENTITY_SUGGESTIONS", "TOUCH_AUTO_LOCK", "SAVE_NOTE", "DELETE_NOTE", "GET_NOTES", "SEARCH_VAULT",
      "ML_INIT", "ML_PREDICT_BATCH", "PING", "SUMMON_AUTOFILL", "VAULT_LOCKED", "VAULT_UNLOCKED",
      "PRO_GATE_TRIGGERED", "PASSKEY_PRO_GATE", "OPEN_PRO_GATE", "OPEN_POPUP", "OPEN_DETACHED_POPUP",
      "SHOW_PASSKEY_TOAST", "DISMISS_PASSKEY_TOAST", "SHOULD_PLAY_CELEBRATION", "MARK_CELEBRATION_PLAYED",
      "GET_CODEX_VAULT_DATA", "ESTIMATE_CODEX_PAGES", "GENERATE_CODEX", "RESTORE_FROM_CODEX",
    ];

    expect(Object.keys(policy).sort()).toEqual([...new Set(declaredTypes)].sort());
    for (const type of declaredTypes) expect(getMessageContext(type)).toBeDefined();
  });

  it("fails closed for unknown runtime message types", () => {
    expect(getMessageContext("TOTALLY_UNKNOWN_MESSAGE")).toBeUndefined();
    expect(getMessageContext(undefined)).toBeUndefined();
  });

  it("refuses URL-less senders for privileged extension-page messages", () => {
    expect(
      isMessageSenderAllowed(
        "GET_ENTRIES",
        { id: "peach-extension" },
        "peach-extension",
        "chrome-extension://peach-extension/",
      ),
    ).toBe(false);
  });

  it("marks the bulk vault and device-authority handlers extension-page-only", () => {
    for (const type of [
      "GET_ENTRIES",
      "GET_RECOVERY_WORDS",
      "RESTORE_ENTRIES",
      "UNPAIR_DEVICE",
      "CONFIRM_VOUCHED_DEVICE",
      "ROTATE_SYNC_IDENTITY",
    ] as const) {
      expect(getMessageContext(type)).toBe("extension-page-only");
    }
  });

  it("allows COPY from popup pages but rejects page-adjacent senders", () => {
    const extensionOrigin = "chrome-extension://peach-extension/";
    expect(getMessageContext("COPY")).toBe("extension-page-only");
    expect(
      isMessageSenderAllowed(
        "COPY",
        { id: "peach-extension", url: `${extensionOrigin}popup.html` },
        "peach-extension",
        extensionOrigin,
      ),
    ).toBe(true);
    expect(
      isMessageSenderAllowed(
        "COPY",
        { id: "peach-extension", url: "https://example.test/login" },
        "peach-extension",
        extensionOrigin,
      ),
    ).toBe(false);
  });

  it("keeps the global identity inventory extension-page-only", () => {
    expect(getMessageContext("GET_IDENTITIES")).toBe("extension-page-only");

    const extensionOrigin = "chrome-extension://peach-extension/";
    expect(
      isMessageSenderAllowed(
        "GET_IDENTITIES",
        { id: "peach-extension", url: `${extensionOrigin}popup.html` },
        "peach-extension",
        extensionOrigin,
      ),
    ).toBe(true);

    for (const sender of [
      { id: "peach-extension", url: "https://example.test/signup" },
      { id: "peach-extension", url: "https://example.test/signup", tab: { id: 1 } },
    ]) {
      expect(
        isMessageSenderAllowed("GET_IDENTITIES", sender, "peach-extension", extensionOrigin),
      ).toBe(false);
    }
  });

  it("covers every message type against popup, content-script, and foreign senders", () => {
    const popup = {
      id: "peach-extension",
      url: "chrome-extension://peach-extension/src/popup/index.html",
    };
    const contentScript = { id: "peach-extension", url: "https://evil.test/login" };
    const foreign = { id: "other-extension", url: "https://evil.test/login" };

    for (const [type, context] of Object.entries(MESSAGE_CONTEXT_POLICY)) {
      expect(
        isMessageSenderAllowed(type, popup, "peach-extension", "chrome-extension://peach-extension/"),
        `popup ${type}`,
      ).toBe(context === "extension-page-only" || context === "content-script-allowed");
      expect(
        isMessageSenderAllowed(type, contentScript, "peach-extension", "chrome-extension://peach-extension/"),
        `content script ${type}`,
      ).toBe(context === "content-script-allowed" || context === "page-relay");
      expect(
        isMessageSenderAllowed(type, foreign, "peach-extension", "chrome-extension://peach-extension/"),
        `foreign sender ${type}`,
      ).toBe(false);
    }

    expect(
      isMessageSenderAllowed(
        "TOTALLY_UNKNOWN_MESSAGE",
        contentScript,
        "peach-extension",
        "chrome-extension://peach-extension/",
      ),
    ).toBe(false);
  });
});