from __future__ import annotations

import os
import json
import subprocess
import textwrap
from pathlib import Path


ROOT = Path(__file__).resolve().parents[3]
SCRIPT = (
    ROOT
    / "scripts"
    / "reboot-recovery"
    / "collect-windows99-vmx-source-backup-search.sh"
)
RECEIPT_BUILDER = (
    ROOT
    / "scripts"
    / "reboot-recovery"
    / "build-windows99-vmx-source-backup-search-receipt.py"
)


def _write_executable(path: Path, text: str) -> None:
    path.write_text(textwrap.dedent(text).lstrip())
    path.chmod(0o755)


def _key_values(stdout: str) -> dict[str, str]:
    values: dict[str, str] = {}
    for line in stdout.splitlines():
        if "=" not in line or line.startswith("HOST_SEARCH "):
            continue
        key, value = line.split("=", 1)
        values[key] = value
    return values


def test_backup_search_collector_is_no_secret_no_content_check_mode() -> None:
    text = SCRIPT.read_text(encoding="utf-8")

    assert "windows99_vmx_source_backup_search_collector_v1" in text
    assert "BatchMode=yes" in text
    assert "PreferredAuthentications=publickey" in text
    assert "PasswordAuthentication=no" in text
    assert "KbdInteractiveAuthentication=no" in text
    assert "NumberOfPasswordPrompts=0" in text
    assert "path_fingerprint_only=true" in text
    assert "file_content_read=false" in text
    assert "remote_write_performed=false" in text
    for forbidden in [
        "sshpass",
        "PasswordAuthentication=yes",
        "KbdInteractiveAuthentication=yes",
        "scp ",
        "sudo ",
        "cat \"$candidate_path\"",
        "Get-Content",
        "Start-VM",
        "vmrun start",
        "shutdown",
        "Restart-Computer",
        "Set-Content",
        "Copy-Item",
        "Move-Item",
        "Remove-Item",
    ]:
        assert forbidden not in text


def test_backup_search_collector_emits_fingerprints_not_paths(tmp_path: Path) -> None:
    fake_bin = tmp_path / "bin"
    fake_bin.mkdir()
    _write_executable(
        fake_bin / "ssh",
        """
        #!/usr/bin/env bash
        target="${@: -2:1}"
        if [[ "$target" == *"blocked"* ]]; then
          exit 255
        fi
        printf '%s\n' 'fp-one'
        printf '%s\n' 'fp-two'
        """,
    )

    env = os.environ.copy()
    env["PATH"] = f"{fake_bin}:{env['PATH']}"
    env["WINDOWS99_VMX_BACKUP_SEARCH_KNOWN_HOSTS_FILE"] = str(
        fake_bin / "known_hosts"
    )
    result = subprocess.run(
        [
            "bash",
            str(SCRIPT),
            "--hosts",
            "ok=wooo@ok,blocked=wooo@blocked",
            "--timeout",
            "3",
        ],
        cwd=ROOT,
        env=env,
        capture_output=True,
        text=True,
        check=False,
    )

    assert result.returncode == 0
    values = _key_values(result.stdout)
    assert values["schema_version"] == "windows99_vmx_source_backup_search_collector_v1"
    assert values["target_vm_alias"] == "111"
    assert values["candidate_source_count"] == "2"
    assert values["searched_host_count"] == "1"
    assert values["blocked_host_count"] == "1"
    assert "HOST_SEARCH alias=ok status=searched candidate_source_count=2" in result.stdout
    assert "HOST_SEARCH alias=blocked status=blocked_ssh_batchmode_unavailable" in (
        result.stdout
    )
    assert "path_fingerprints=fp-one,fp-two" in result.stdout
    assert "192.168.0." not in result.stdout
    assert "/home/wooo" not in result.stdout
    assert "file_content_read=false" in result.stdout
    assert "remote_write_performed=false" in result.stdout
    assert "vm_power_change_performed=false" in result.stdout


def test_backup_search_collector_resolves_bare_aliases_and_blocks_unknown(
    tmp_path: Path,
) -> None:
    fake_bin = tmp_path / "bin"
    fake_bin.mkdir()
    _write_executable(
        fake_bin / "ssh",
        """
        #!/usr/bin/env bash
        target="${@: -2:1}"
        if [[ "$target" == *"blocked"* ]]; then
          exit 255
        fi
        printf '%s\n' 'fp-alias'
        """,
    )

    env = os.environ.copy()
    env["PATH"] = f"{fake_bin}:{env['PATH']}"
    env["WINDOWS99_VMX_BACKUP_SEARCH_KNOWN_HOSTS_FILE"] = str(
        fake_bin / "known_hosts"
    )
    env["WINDOWS99_VMX_BACKUP_SEARCH_HOST_DIRECTORY"] = (
        "ok=wooo@ok,blocked=wooo@blocked"
    )
    result = subprocess.run(
        [
            "bash",
            str(SCRIPT),
            "--hosts",
            "ok,blocked,missing",
            "--timeout",
            "3",
        ],
        cwd=ROOT,
        env=env,
        capture_output=True,
        text=True,
        check=False,
    )

    assert result.returncode == 0
    values = _key_values(result.stdout)
    assert values["candidate_source_count"] == "1"
    assert values["searched_host_count"] == "1"
    assert values["blocked_host_count"] == "2"
    assert "HOST_SEARCH alias=ok status=searched candidate_source_count=1" in result.stdout
    assert "HOST_SEARCH alias=blocked status=blocked_ssh_batchmode_unavailable" in (
        result.stdout
    )
    assert "HOST_SEARCH alias=missing status=blocked_host_alias_unresolved" in (
        result.stdout
    )


def test_backup_search_receipt_builder_projects_collector_stdout_safely(
    tmp_path: Path,
) -> None:
    collector_output = tmp_path / "collector.txt"
    collector_output.write_text(
        textwrap.dedent(
            """
            schema_version=windows99_vmx_source_backup_search_collector_v1
            search_hosts=110=wooo@192.168.0.110,120=wooo@192.168.0.120
            secret_value_read=false
            file_content_read=false
            raw_path_output=false
            HOST_SEARCH alias=110 status=blocked_ssh_batchmode_unavailable candidate_source_count=0 path_fingerprints=
            HOST_SEARCH alias=120 status=searched candidate_source_count=2 path_fingerprints=abc12345,def67890
            candidate_source_count=2
            search_status=candidate_fingerprint_found_requires_internal_path_resolution
            """
        ).strip()
        + "\n",
        encoding="utf-8",
    )
    locator_receipt = tmp_path / "locator.json"
    locator_receipt.write_text(
        json.dumps(
            {
                "schema_version": "windows99_vmx_source_locator_receipt_v1",
                "collector_readback_present": True,
                "locate_status": "blocked_missing_expected_vmx_source_no_candidate_found",
                "candidate_source_count_known": True,
                "candidate_source_count": 0,
                "candidate_source_fingerprint_count": 0,
            }
        ),
        encoding="utf-8",
    )

    result = subprocess.run(
        [
            "python3",
            str(RECEIPT_BUILDER),
            "--collector-output",
            str(collector_output),
            "--locator-receipt",
            str(locator_receipt),
            "--generated-at",
            "2026-07-09T17:10:00+08:00",
            "--stdout",
        ],
        cwd=ROOT,
        capture_output=True,
        text=True,
        check=True,
    )

    payload = json.loads(result.stdout)
    assert payload["schema_version"] == "windows99_vmx_source_backup_search_receipt_v1"
    assert payload["collector_readback_present"] is True
    assert payload["searched_host_count"] == 1
    assert payload["blocked_host_count"] == 2
    assert payload["candidate_source_count"] == 2
    assert payload["candidate_source_fingerprint_count"] == 2
    assert payload["search_status"] == (
        "candidate_fingerprint_found_requires_internal_path_resolution"
    )
    assert payload["raw_path_output"] is False
    assert payload["path_fingerprint_only"] is True
    assert payload["file_content_read"] is False
    assert payload["secret_value_read"] is False
    assert payload["remote_write_performed"] is False
    assert payload["vm_power_change_performed"] is False
    assert "192.168.0." not in result.stdout
    assert "D:\\" not in result.stdout
    assert "/Users/" not in result.stdout