import json
import os

import pytest
from unittest.mock import MagicMock, patch

from hate_crack.api import (
    check_7z,
    check_transmission_daemon,
    download_hashmob_wordlist,
    extract_with_7z,
    get_hashmob_api_key,
    get_hcat_potfile_args,
    get_hcat_potfile_path,
    list_and_download_hashmob_rules,
    run_torrent_session,
    sanitize_filename,
    TransmissionSession,
    _Hashmob429,
    _pick_free_port,
    _streamed_download,
    _with_hashmob_backoff,
    list_and_download_official_wordlists,
)
import requests as req_lib


class TestSanitizeFilename:
    def test_normal_filename_unchanged(self):
        assert sanitize_filename("rockyou.txt") == "rockyou.txt"

    def test_spaces_become_underscores(self):
        assert sanitize_filename("my file.txt") == "my_file.txt"

    def test_path_separators_removed(self):
        # Dots are kept; slashes are removed. "../../etc/passwd" has 4 dots, 2 slashes.
        assert sanitize_filename("../../etc/passwd") == "....etcpasswd"

    def test_empty_string(self):
        assert sanitize_filename("") == ""

    def test_mixed_case_preserved(self):
        assert sanitize_filename("RockYou.txt") == "RockYou.txt"


class TestCheck7z:
    def test_returns_true_when_found(self, capsys):
        with patch("shutil.which", return_value="/usr/bin/7z"):
            result = check_7z()
        assert result is True

    def test_returns_false_when_missing(self, capsys):
        with patch("shutil.which", return_value=None):
            result = check_7z()
        assert result is False
        captured = capsys.readouterr()
        assert "7z" in captured.out


class TestCheckTransmissionDaemon:
    def test_returns_true_when_both_found(self):
        with patch("shutil.which", side_effect=lambda x: f"/usr/bin/{x}"):
            result = check_transmission_daemon()
        assert result is True

    def test_returns_false_when_daemon_missing(self, capsys):
        def which(x):
            return None if x == "transmission-daemon" else f"/usr/bin/{x}"

        with patch("shutil.which", side_effect=which):
            result = check_transmission_daemon()
        assert result is False
        assert "transmission-daemon" in capsys.readouterr().out

    def test_returns_false_when_remote_missing(self, capsys):
        def which(x):
            return None if x == "transmission-remote" else f"/usr/bin/{x}"

        with patch("shutil.which", side_effect=which):
            result = check_transmission_daemon()
        assert result is False


class TestPickFreePort:
    def test_returns_int_in_valid_range(self):
        port = _pick_free_port()
        assert isinstance(port, int)
        assert 1 <= port <= 65535


class TestTransmissionSession:
    def _patch_startup_success(self):
        """Helper: returns patches that simulate a successful daemon startup."""
        proc_mock = MagicMock()
        # transmission-remote -l probe returns rc 0 immediately.
        probe_result = MagicMock(returncode=0, stdout="", stderr="")
        return proc_mock, probe_result

    def test_daemon_starts_with_expected_args(self, tmp_path):
        proc_mock, probe_result = self._patch_startup_success()
        with patch("hate_crack.api._pick_free_port", return_value=12345), patch(
            "subprocess.Popen", return_value=proc_mock
        ) as popen, patch(
            "subprocess.run", return_value=probe_result
        ) as run_mock, patch(
            "atexit.register"
        ):
            ts = TransmissionSession(str(tmp_path))
            ts.__enter__()
            try:
                # Popen called with transmission-daemon and key flags
                args = popen.call_args[0][0]
                assert args[0] == "transmission-daemon"
                assert "-f" in args
                assert "--port" in args
                assert "12345" in args
                assert "--no-auth" in args
                assert "--download-dir" in args
                assert str(tmp_path) in args
                # Probe used transmission-remote with -l
                probe_args = run_mock.call_args[0][0]
                assert probe_args[0] == "transmission-remote"
                assert probe_args[-1] == "-l"
            finally:
                ts._stopped = True  # avoid running real cleanup

    def test_startup_timeout_raises(self, tmp_path):
        proc_mock = MagicMock()
        probe_failure = MagicMock(returncode=1, stdout="", stderr="")
        with patch("hate_crack.api._pick_free_port", return_value=12345), patch(
            "subprocess.Popen", return_value=proc_mock
        ), patch("subprocess.run", return_value=probe_failure), patch(
            "time.sleep"
        ), patch(
            "time.monotonic", side_effect=[0.0, 0.1, 100.0, 200.0, 300.0]
        ), patch(
            "atexit.register"
        ):
            ts = TransmissionSession(str(tmp_path), startup_timeout=1.0)
            with pytest.raises(RuntimeError, match="Transmission daemon failed"):
                ts.__enter__()

    def test_add_copies_to_watch_dir_and_returns_new_id(self, tmp_path):
        ts = TransmissionSession(str(tmp_path))
        ts._rpc = "127.0.0.1:9999"
        ts._watch_dir = str(tmp_path / "watch")
        # Before: IDs 3 and 5. After first poll: ID 7 appears.
        list_calls = iter([
            [{"id": 3}, {"id": 5}],
            [{"id": 3}, {"id": 5}, {"id": 7}],
        ])
        with patch("shutil.copy2"), patch.object(ts, "list", side_effect=list_calls), \
                patch("time.sleep"), patch("time.monotonic", side_effect=[0.0, 1.0]):
            tid = ts.add("/tmp/foo.torrent")
        assert tid == 7

    def test_add_polls_until_daemon_picks_up_torrent(self, tmp_path):
        ts = TransmissionSession(str(tmp_path))
        ts._rpc = "127.0.0.1:9999"
        ts._watch_dir = str(tmp_path / "watch")
        # First two polls: no new ID. Third poll: ID 9 appears.
        list_calls = iter([
            [{"id": 1}],
            [{"id": 1}],
            [{"id": 1}],
            [{"id": 1}, {"id": 9}],
        ])
        monotonic_vals = iter([0.0, 1.0, 2.0, 3.0, 4.0])
        with patch("shutil.copy2"), patch.object(ts, "list", side_effect=list_calls), \
                patch("time.sleep"), patch("time.monotonic", side_effect=monotonic_vals):
            tid = ts.add("/tmp/foo.torrent")
        assert tid == 9

    def test_add_raises_on_timeout(self, tmp_path):
        ts = TransmissionSession(str(tmp_path))
        ts._rpc = "127.0.0.1:9999"
        ts._watch_dir = str(tmp_path / "watch")
        # list never returns a new ID; monotonic jumps past the 10s deadline.
        with patch("shutil.copy2"), patch.object(ts, "list", return_value=[{"id": 1}]), \
                patch("time.sleep"), patch("time.monotonic", side_effect=[0.0, 100.0]):
            with pytest.raises(RuntimeError):
                ts.add("/tmp/foo.torrent")

    def test_list_parses_rows(self, tmp_path):
        ts = TransmissionSession(str(tmp_path))
        ts._rpc = "127.0.0.1:9999"
        stdout = (
            "ID     Done       Have  ETA           Up    Down  Ratio  Status       Name\n"
            "  1   100%  1.50 GB  Done           0.0     0.0   1.0  Idle         my-list.7z\n"
            "  2    45%  500 MB   3 hours        0.0   200.0   0.1  Downloading  another-list.7z\n"
            "Sum:        2.00 GB                  0.0   200.0\n"
        )
        result = MagicMock(returncode=0, stdout=stdout, stderr="")
        with patch("subprocess.run", return_value=result):
            entries = ts.list()
        assert len(entries) == 2
        assert entries[0]["id"] == 1
        assert entries[0]["percent_done"] == 100.0
        assert entries[1]["id"] == 2
        assert entries[1]["percent_done"] == 45.0

    def test_list_returns_empty_on_nonzero_rc(self, tmp_path):
        ts = TransmissionSession(str(tmp_path))
        ts._rpc = "127.0.0.1:9999"
        result = MagicMock(returncode=1, stdout="", stderr="boom")
        with patch("subprocess.run", return_value=result):
            assert ts.list() == []

    def test_info_file_parses_path(self, tmp_path):
        ts = TransmissionSession(str(tmp_path))
        ts._rpc = "127.0.0.1:9999"
        stdout = (
            "myname.torrent (1 files):\n"
            "  #  Done Priority Get      Size       Name\n"
            "  0: 100% Normal   Yes      1.50 GB    my-list.7z\n"
        )
        result = MagicMock(returncode=0, stdout=stdout, stderr="")
        with patch("subprocess.run", return_value=result):
            name = ts.info_file(1)
        assert name == "my-list.7z"

    def test_info_file_returns_empty_on_failure(self, tmp_path):
        ts = TransmissionSession(str(tmp_path))
        ts._rpc = "127.0.0.1:9999"
        result = MagicMock(returncode=1, stdout="", stderr="bad")
        with patch("subprocess.run", return_value=result):
            assert ts.info_file(1) == ""

    def test_wait_for_all_invokes_callback_and_remove(self, tmp_path):
        ts = TransmissionSession(str(tmp_path), poll_interval=0.0)
        ts._rpc = "127.0.0.1:9999"
        # First poll: torrent at 100%. Second poll: empty.
        list_results = [
            [{"id": 1, "percent_done": 100.0, "status": "Idle", "name": "x"}],
            [],
        ]
        info_calls = []
        remove_calls = []

        def fake_list():
            return list_results.pop(0)

        def fake_info(tid):
            info_calls.append(tid)
            return "my-list.7z"

        def fake_remove(tid):
            remove_calls.append(tid)

        callbacks = []

        def on_complete(tid, name):
            callbacks.append((tid, name))

        with patch.object(ts, "list", side_effect=fake_list), patch.object(
            ts, "info_file", side_effect=fake_info
        ), patch.object(ts, "remove", side_effect=fake_remove), patch(
            "time.sleep"
        ):
            ts.wait_for_all(on_complete=on_complete)
        assert callbacks == [(1, "my-list.7z")]
        assert remove_calls == [1]
        assert info_calls == [1]

    def test_wait_for_all_calls_on_complete_when_info_file_empty(self, tmp_path):
        """on_complete must be called even when info_file returns "" so the caller
        can account for the torrent (e.g. increment a failure counter)."""
        ts = TransmissionSession(str(tmp_path), poll_interval=0.0)
        ts._rpc = "127.0.0.1:9999"
        list_results = [
            [{"id": 2, "percent_done": 100.0, "status": "Idle", "name": "x"}],
            [],
        ]
        callbacks = []

        with patch.object(ts, "list", side_effect=lambda: list_results.pop(0)), \
             patch.object(ts, "info_file", return_value=""), \
             patch.object(ts, "remove"), \
             patch("time.sleep"):
            ts.wait_for_all(on_complete=lambda tid, name: callbacks.append((tid, name)))

        assert callbacks == [(2, "")], "on_complete must fire even when info_file returns empty"

    def test_wait_for_all_keyboard_interrupt_propagates(self, tmp_path):
        ts = TransmissionSession(str(tmp_path), poll_interval=0.0)
        ts._rpc = "127.0.0.1:9999"
        with patch.object(ts, "list", side_effect=KeyboardInterrupt), patch(
            "time.sleep"
        ):
            with pytest.raises(KeyboardInterrupt):
                ts.wait_for_all(on_complete=lambda *a: None)

    def test_exit_calls_stop_and_cleans_cfg_dir(self, tmp_path):
        proc_mock = MagicMock()
        probe_result = MagicMock(returncode=0, stdout="", stderr="")
        rmtree_mock = MagicMock()
        with patch("hate_crack.api._pick_free_port", return_value=12345), patch(
            "subprocess.Popen", return_value=proc_mock
        ), patch("subprocess.run", return_value=probe_result) as run_mock, patch(
            "atexit.register"
        ), patch(
            "tempfile.mkdtemp", return_value="/tmp/fake_cfg_dir"
        ), patch(
            "shutil.rmtree", rmtree_mock
        ):
            with TransmissionSession(str(tmp_path)) as ts:
                pass
            # transmission-remote --exit was called
            exit_called = any(
                "--exit" in (call.args[0] if call.args else [])
                for call in run_mock.call_args_list
            )
            assert exit_called
            # cfg_dir removed
            rmtree_mock.assert_called_with(
                "/tmp/fake_cfg_dir", ignore_errors=True
            )

    def test_stop_is_idempotent(self, tmp_path):
        ts = TransmissionSession(str(tmp_path))
        ts._stopped = True
        # No subprocess calls should be made when already stopped.
        with patch("subprocess.run") as run_mock:
            ts._stop()
        run_mock.assert_not_called()


class TestRunTorrentSession:
    def test_returns_early_when_daemon_missing(self):
        with patch(
            "hate_crack.api.check_transmission_daemon", return_value=False
        ), patch("hate_crack.api.check_7z") as seven_z:
            run_torrent_session(["a.torrent"], "/tmp/save")
        seven_z.assert_not_called()

    def test_returns_early_when_7z_missing(self):
        with patch(
            "hate_crack.api.check_transmission_daemon", return_value=True
        ), patch("hate_crack.api.check_7z", return_value=False), patch(
            "hate_crack.api.TransmissionSession"
        ) as ts_cls:
            run_torrent_session(["a.torrent"], "/tmp/save")
        ts_cls.assert_not_called()

    def test_happy_path_adds_and_waits(self):
        ts_instance = MagicMock()
        ts_cls = MagicMock()
        ts_cls.return_value.__enter__ = MagicMock(return_value=ts_instance)
        ts_cls.return_value.__exit__ = MagicMock(return_value=None)
        with patch(
            "hate_crack.api.check_transmission_daemon", return_value=True
        ), patch("hate_crack.api.check_7z", return_value=True), patch(
            "hate_crack.api.TransmissionSession", ts_cls
        ):
            run_torrent_session(["a.torrent", "b.torrent"], "/tmp/save")
        # ts.add called for each torrent
        assert ts_instance.add.call_count == 2
        ts_instance.wait_for_all.assert_called_once()

    def test_keyboard_interrupt_propagates(self):
        ts_instance = MagicMock()
        ts_instance.wait_for_all.side_effect = KeyboardInterrupt
        ts_cls = MagicMock()
        ts_cls.return_value.__enter__ = MagicMock(return_value=ts_instance)
        ts_cls.return_value.__exit__ = MagicMock(return_value=None)
        with patch(
            "hate_crack.api.check_transmission_daemon", return_value=True
        ), patch("hate_crack.api.check_7z", return_value=True), patch(
            "hate_crack.api.TransmissionSession", ts_cls
        ):
            with pytest.raises(KeyboardInterrupt):
                run_torrent_session(["a.torrent"], "/tmp/save")


class TestGetHcatPotfilePath:
    def test_returns_config_value_when_set(self, tmp_path):
        config_data = {"hcatPotfilePath": "/custom/hashcat.potfile"}
        config_file = tmp_path / "config.json"
        config_file.write_text(json.dumps(config_data))
        with patch("hate_crack.api._resolve_config_path", return_value=str(config_file)):
            result = get_hcat_potfile_path()
        assert result == "/custom/hashcat.potfile"

    def test_returns_default_when_key_missing(self, tmp_path):
        config_file = tmp_path / "config.json"
        config_file.write_text(json.dumps({}))
        with patch("hate_crack.api._resolve_config_path", return_value=str(config_file)):
            result = get_hcat_potfile_path()
        assert result == os.path.expanduser("~/.hashcat/hashcat.potfile")

    def test_returns_empty_string_when_key_is_empty(self, tmp_path):
        config_data = {"hcatPotfilePath": ""}
        config_file = tmp_path / "config.json"
        config_file.write_text(json.dumps(config_data))
        with patch("hate_crack.api._resolve_config_path", return_value=str(config_file)):
            result = get_hcat_potfile_path()
        assert result == ""

    def test_resolves_relative_path_from_config_dir(self, tmp_path):
        config_data = {"hcatPotfilePath": "hashcat.potfile"}
        config_file = tmp_path / "config.json"
        config_file.write_text(json.dumps(config_data))
        with patch("hate_crack.api._resolve_config_path", return_value=str(config_file)):
            result = get_hcat_potfile_path()
        assert result == str(tmp_path / "hashcat.potfile")

    def test_returns_default_when_no_config(self):
        with patch("hate_crack.api._resolve_config_path", return_value=None):
            result = get_hcat_potfile_path()
        assert result == os.path.expanduser("~/.hashcat/hashcat.potfile")

    def test_expands_tilde_in_config_value(self, tmp_path):
        config_data = {"hcatPotfilePath": "~/.custom/hashcat.potfile"}
        config_file = tmp_path / "config.json"
        config_file.write_text(json.dumps(config_data))
        with patch("hate_crack.api._resolve_config_path", return_value=str(config_file)):
            result = get_hcat_potfile_path()
        assert result == os.path.expanduser("~/.custom/hashcat.potfile")
        assert "~" not in result


class TestGetHcatPotfileArgs:
    def test_returns_list_with_potfile_arg(self):
        with patch("hate_crack.api.get_hcat_potfile_path", return_value="/some/path/hashcat.potfile"):
            result = get_hcat_potfile_args()
        assert result == ["--potfile-path=/some/path/hashcat.potfile"]

    def test_returns_non_empty_list_by_default(self):
        # Default path always resolves to something (expanduser never returns empty)
        with patch("hate_crack.api._resolve_config_path", return_value=None):
            result = get_hcat_potfile_args()
        assert len(result) == 1
        assert result[0].startswith("--potfile-path=")


class TestGetHashmobApiKey:
    def test_returns_key_from_config(self, tmp_path):
        config_data = {"hashmob_api_key": "abc123secret"}
        config_file = tmp_path / "config.json"
        config_file.write_text(json.dumps(config_data))
        config_path = str(config_file)
        # Patch isfile so the function sees our config file as the pkg_dir config,
        # and patch open so reads come from it.
        with patch("hate_crack.api.os.path.isfile", side_effect=lambda p: p == config_path), \
             patch("hate_crack.api.os.path.dirname", return_value=str(tmp_path)), \
             patch("hate_crack.api.os.path.abspath", side_effect=lambda p: p):
            result = get_hashmob_api_key()
        assert result == "abc123secret"

    def test_returns_none_when_missing(self, tmp_path):
        config_file = tmp_path / "config.json"
        config_file.write_text(json.dumps({}))
        config_path = str(config_file)
        with patch("hate_crack.api.os.path.isfile", side_effect=lambda p: p == config_path), \
             patch("hate_crack.api.os.path.dirname", return_value=str(tmp_path)), \
             patch("hate_crack.api.os.path.abspath", side_effect=lambda p: p):
            result = get_hashmob_api_key()
        assert result is None

    def test_returns_none_when_no_config(self):
        with patch("hate_crack.api.os.path.isfile", return_value=False):
            result = get_hashmob_api_key()
        assert result is None


class TestExtractWith7z:
    def _make_run_result(self, returncode=0):
        result = MagicMock()
        result.returncode = returncode
        result.stdout = ""
        result.stderr = ""
        return result

    def test_returns_false_when_not_installed(self, tmp_path, capsys):
        with patch("hate_crack.api.shutil.which", return_value=None):
            archive = tmp_path / "test.7z"
            archive.write_text("fake archive data")
            result = extract_with_7z(str(archive), str(tmp_path))
        assert result is False
        captured = capsys.readouterr()
        assert "7z" in captured.out

    def test_returns_true_on_success(self, tmp_path):
        archive = tmp_path / "test.7z"
        archive.write_text("fake archive data")
        mock_result = self._make_run_result(returncode=0)
        with patch("hate_crack.api.shutil.which", return_value="/usr/bin/7z"), \
             patch("subprocess.run", return_value=mock_result):
            result = extract_with_7z(str(archive), str(tmp_path), remove_archive=False)
        assert result is True

    def test_returns_false_on_failure(self, tmp_path):
        archive = tmp_path / "test.7z"
        archive.write_text("fake archive data")
        mock_result = self._make_run_result(returncode=1)
        with patch("hate_crack.api.shutil.which", return_value="/usr/bin/7z"), \
             patch("subprocess.run", return_value=mock_result):
            result = extract_with_7z(str(archive), str(tmp_path))
        assert result is False

    def test_removes_archive_on_success(self, tmp_path):
        archive = tmp_path / "test.7z"
        archive.write_text("fake archive data")
        mock_result = self._make_run_result(returncode=0)
        with patch("hate_crack.api.shutil.which", return_value="/usr/bin/7z"), \
             patch("subprocess.run", return_value=mock_result):
            result = extract_with_7z(str(archive), str(tmp_path), remove_archive=True)
        assert result is True
        assert not archive.exists()

    def test_keeps_archive_when_remove_false(self, tmp_path):
        archive = tmp_path / "test.7z"
        archive.write_text("fake archive data")
        mock_result = self._make_run_result(returncode=0)
        with patch("hate_crack.api.shutil.which", return_value="/usr/bin/7z"), \
             patch("subprocess.run", return_value=mock_result):
            result = extract_with_7z(str(archive), str(tmp_path), remove_archive=False)
        assert result is True
        assert archive.exists()


class TestDownloadHashmobWordlist:
    def _make_mock_response(self, status_code=200, content=b"wordlist data"):
        mock_response = MagicMock()
        mock_response.__enter__ = lambda s: mock_response
        mock_response.__exit__ = MagicMock(return_value=False)
        mock_response.status_code = status_code
        mock_response.headers = {"Content-Type": "application/octet-stream"}
        mock_response.iter_content.return_value = [content]
        mock_response.raise_for_status = MagicMock()
        return mock_response

    def test_successful_download(self, tmp_path):
        mock_response = self._make_mock_response(status_code=200, content=b"wordlist data")
        out = tmp_path / "test.txt"
        with patch("hate_crack.api.requests.get", return_value=mock_response), \
             patch("hate_crack.api.time.sleep"):
            result = download_hashmob_wordlist("test.txt", str(out))
        assert result is True
        assert out.exists()
        assert out.read_bytes() == b"wordlist data"

    def test_404_returns_false(self, tmp_path):
        import requests as req

        mock_response = self._make_mock_response(status_code=404)
        mock_response.raise_for_status.side_effect = req.exceptions.HTTPError(
            response=MagicMock(status_code=404)
        )
        out = tmp_path / "test.txt"
        with patch("hate_crack.api.requests.get", return_value=mock_response), \
             patch("hate_crack.api.time.sleep"):
            result = download_hashmob_wordlist("test.txt", str(out))
        assert result is False


class TestParallelRuleDownloads:
    def _make_rules(self, names):
        return [{"file_name": n} for n in names]

    def _patch_stdin_tty(self):
        mock_stdin = MagicMock()
        mock_stdin.isatty.return_value = True
        return patch("hate_crack.api.sys.stdin", mock_stdin)

    def test_submits_to_thread_pool(self, tmp_path):
        rules = self._make_rules(["rule1.rule", "rule2.rule", "rule3.rule"])
        rules_dir = str(tmp_path / "rules")
        os.makedirs(rules_dir)
        with patch("hate_crack.api.download_hashmob_rule_list", return_value=rules), \
             patch("hate_crack.api.download_hashmob_rule") as mock_dl, \
             self._patch_stdin_tty(), \
             patch("builtins.input", return_value="a"):
            list_and_download_hashmob_rules(rules_dir=rules_dir)
        assert mock_dl.call_count == 3
        downloaded_names = {c.args[0] for c in mock_dl.call_args_list}
        assert downloaded_names == {"rule1.rule", "rule2.rule", "rule3.rule"}

    def test_failure_does_not_block_others(self, tmp_path, capsys):
        rules = self._make_rules(["good.rule", "bad.rule", "also_good.rule"])
        rules_dir = str(tmp_path / "rules")
        os.makedirs(rules_dir)

        def side_effect(file_name, out_path):
            if file_name == "bad.rule":
                raise RuntimeError("download error")

        with patch("hate_crack.api.download_hashmob_rule_list", return_value=rules), \
             patch("hate_crack.api.download_hashmob_rule", side_effect=side_effect), \
             self._patch_stdin_tty(), \
             patch("builtins.input", return_value="a"):
            list_and_download_hashmob_rules(rules_dir=rules_dir)

        captured = capsys.readouterr()
        assert "2 succeeded" in captured.out
        assert "1 failed" in captured.out

    def test_skips_already_downloaded(self, tmp_path, capsys):
        rules = self._make_rules(["existing.rule", "new.rule"])
        rules_dir = str(tmp_path / "rules")
        os.makedirs(rules_dir)
        (tmp_path / "rules" / "existing.rule").touch()
        with patch("hate_crack.api.download_hashmob_rule_list", return_value=rules), \
             patch("hate_crack.api.download_hashmob_rule") as mock_dl, \
             self._patch_stdin_tty(), \
             patch("builtins.input", return_value="a"):
            list_and_download_hashmob_rules(rules_dir=rules_dir)
        assert mock_dl.call_count == 1
        assert mock_dl.call_args.args[0] == "new.rule"
        captured = capsys.readouterr()
        assert "Skipping already downloaded" in captured.out


def _make_mock_response(
    status_code=200,
    content=b"file data",
    content_type="application/octet-stream",
    headers=None,
):
    mock_resp = MagicMock()
    mock_resp.__enter__ = lambda s: mock_resp
    mock_resp.__exit__ = MagicMock(return_value=False)
    mock_resp.status_code = status_code
    mock_resp.headers = {
        "Content-Type": content_type,
        "content-length": str(len(content)),
        **(headers or {}),
    }
    mock_resp.iter_content.return_value = [content]
    mock_resp.content = content
    mock_resp.raise_for_status = MagicMock()
    return mock_resp


class TestStreamedDownload:
    def test_happy_path(self, tmp_path):
        content = b"hello data"
        mock_resp = _make_mock_response(status_code=200, content=content)
        out = tmp_path / "out.txt"
        with patch("hate_crack.api.requests.get", return_value=mock_resp) as mock_get:
            result = _streamed_download("https://example.com/file.txt", str(out))
        assert result is True
        assert out.exists()
        assert out.read_bytes() == content
        assert not (tmp_path / "out.txt.part").exists()
        mock_get.assert_called_once()
        assert mock_get.call_args.args[0] == "https://example.com/file.txt"

    def test_partial_cleanup_on_error(self, tmp_path):
        mock_resp = _make_mock_response(status_code=200, content=b"some data")
        mock_resp.iter_content.side_effect = req_lib.exceptions.ChunkedEncodingError(
            "network error"
        )
        out = tmp_path / "out.txt"
        with patch("hate_crack.api.requests.get", return_value=mock_resp):
            result = _streamed_download("https://example.com/file.txt", str(out))
        assert result is False
        assert not out.exists()
        assert not (tmp_path / "out.txt.part").exists()

    def test_keyboardinterrupt_cleanup(self, tmp_path):
        mock_resp = _make_mock_response(status_code=200, content=b"some data")
        mock_resp.iter_content.side_effect = KeyboardInterrupt
        out = tmp_path / "out.txt"
        ki_raised = False
        with patch("hate_crack.api.requests.get", return_value=mock_resp):
            try:
                _streamed_download("https://example.com/file.txt", str(out))
            except KeyboardInterrupt:
                ki_raised = True
        assert ki_raised
        assert not (tmp_path / "out.txt.part").exists()

    def test_skip_existing(self, tmp_path):
        out = tmp_path / "out.txt"
        out.write_bytes(b"already here")
        with patch("hate_crack.api.requests.get") as mock_get:
            result = _streamed_download(
                "https://example.com/file.txt", str(out), skip_existing=True
            )
        assert result is True
        mock_get.assert_not_called()


class TestHashmobBackoff:
    def test_gives_up_after_max_attempts(self, capsys):
        fn = MagicMock(side_effect=_Hashmob429)
        with patch("hate_crack.api.time.sleep") as mock_sleep, \
             patch("hate_crack.api._hashmob_limiter.wait"):
            result = _with_hashmob_backoff(fn, max_attempts=3, base_delay=1, step=1, max_delay=10)
        assert result is False
        assert fn.call_count == 3
        # sleep called between attempts, but NOT after the last attempt
        assert mock_sleep.call_count == 2
        captured = capsys.readouterr()
        assert "gave up after 3 attempts" in captured.out

    def test_succeeds_on_first_try(self):
        fn = MagicMock(return_value=True)
        with patch("time.sleep") as mock_sleep:
            result = _with_hashmob_backoff(fn)
        assert result is True
        mock_sleep.assert_not_called()

    def test_succeeds_after_retry(self):
        fn = MagicMock(side_effect=[_Hashmob429(), _Hashmob429(), True])
        with patch("hate_crack.api.time.sleep") as mock_sleep, \
             patch("hate_crack.api._hashmob_limiter.wait"):
            result = _with_hashmob_backoff(fn, max_attempts=6, base_delay=1, step=1, max_delay=10)
        assert result is True
        assert fn.call_count == 3
        assert mock_sleep.call_count == 2

    def test_non_429_exception_reraises(self):
        fn = MagicMock(side_effect=ValueError("not a 429"))
        with pytest.raises(ValueError, match="not a 429"):
            _with_hashmob_backoff(fn)


class TestHashmobWordlistRedirectBugFix:
    def test_meta_refresh_redirect_uses_verbatim_url(self, tmp_path):
        real_url = "https://real-server.example.com/actual_file.txt"
        html_content = (
            "<html><head>"
            '<meta http-equiv="refresh" content="0;url=https://real-server.example.com/actual_file.txt">'
            "</head></html>"
        ).encode()
        mock_resp = _make_mock_response(
            status_code=200,
            content=html_content,
            content_type="text/plain",
        )
        with patch("hate_crack.api.requests.get", return_value=mock_resp), \
             patch("hate_crack.api.time.sleep"), \
             patch("hate_crack.api._hashmob_limiter.wait"), \
             patch("hate_crack.api._streamed_download", return_value=True) as mock_sd:
            download_hashmob_wordlist("some_file.txt", str(tmp_path / "out.txt"))

        mock_sd.assert_called_once()
        called_url = mock_sd.call_args.args[0]
        assert called_url == real_url, (
            f"Expected verbatim redirect URL '{real_url}', got '{called_url}'"
        )


class TestListAndDownloadOfficialWordlistsSkipExisting:
    def test_skips_already_downloaded_in_all_branch(self, tmp_path, capsys):
        wordlists_dir = tmp_path / "wordlists"
        wordlists_dir.mkdir()
        # Pre-create existing.txt with content so it passes the size>0 check
        (wordlists_dir / "existing.txt").write_bytes(b"already downloaded")

        api_data = [{"file_name": "existing.txt"}, {"file_name": "new.txt"}]
        mock_resp = MagicMock()
        mock_resp.raise_for_status = MagicMock()
        mock_resp.json.return_value = api_data

        mock_stdin = MagicMock()
        mock_stdin.isatty.return_value = True

        with patch("hate_crack.api.requests.get", return_value=mock_resp), \
             patch("hate_crack.api.get_hcat_wordlists_dir", return_value=str(wordlists_dir)), \
             patch("hate_crack.api.download_official_wordlist") as mock_dl, \
             patch("hate_crack.api.sys.stdin", mock_stdin), \
             patch("builtins.input", return_value="a"):
            list_and_download_official_wordlists()

        assert mock_dl.call_count == 1
        called_filename = mock_dl.call_args.args[0]
        assert called_filename == "new.txt"
        captured = capsys.readouterr()
        assert "Skipping existing.txt" in captured.out