"""Dump command for hermes CLI."""

import json
import os
import platform
import subprocess
import sys
from pathlib import Path

from hermes_cli.config import get_hermes_home, get_env_path, get_project_root, load_config
from hermes_cli.env_loader import load_hermes_dotenv
from hermes_constants import display_hermes_home
from agent.skill_utils import is_excluded_skill_path


def _dotenv_key_names() -> set[str]:
    """Return the set of env-var names assigned a non-empty value in ~/.hermes/.env.

    The managed backends (launchd / systemd / the desktop-spawned ``serve`` process) load
    credentials from this file — NOT from an interactive shell's exports. ``hermes debug share``
    runs in a terminal, so ``os.getenv`` reflects the shell's environment, which can include
    exported keys the managed backend never sees.
    """
    try:
        env_path = get_env_path()
        text = env_path.read_text(encoding="utf-8", errors="ignore")
    except (OSError, UnicodeError):
        return set()

    names: set[str] = set()
    for raw in text.splitlines():
        line = raw.strip()
        if not line or line.startswith("#") or "=" not in line:
            continue
        if line.lower().startswith("export "):
            line = line[len("export "):].lstrip()
        name, _, value = line.partition("=")
        name = name.strip()
        # A bare `KEY=` (empty value) is effectively unset for the backend.
        if name and value.strip().strip("'\""):
            names.add(name)
    return names


def _git_output(project_root: Path, *args: str) -> str:
    """Stripped stdout of ``git <args>`` run in *project_root*, or '' on any failure."""
    try:
        result = subprocess.run(
            ["git", *args],
            capture_output=True, text=True, encoding='utf-8', errors='replace', timeout=5,
            cwd=str(project_root),
        )
        if result.returncode == 0:
            return result.stdout.strip()
    except Exception:
        pass
    return ""


def _get_git_commit(project_root: Path) -> str:
    """Return short git commit hash, or '(unknown)'.

    Source installs resolve live via ``git rev-parse``. The published Docker image excludes
    ``.git``, so fall back to the build SHA baked into ``<project_root>/.hermes_build_sha`` by the
    Dockerfile. Output format is identical either way.
    """
    value = _git_output(project_root, "rev-parse", "--short=8", "HEAD")
    if value:
        return value

    # Fall back to the build-time baked SHA (populated in published Docker
    # images, absent otherwise).  Defers the import so the dump module
    # stays cheap on non-dump code paths.
    try:
        from hermes_cli.build_info import get_build_sha
        baked = get_build_sha(short=8)
        if baked:
            return baked
    except Exception:
        pass

    return "(unknown)"


def _get_git_commit_date(project_root: Path) -> str:
    """Return the date the HEAD commit was authored (YYYY-MM-DD), or ''.

    The published Docker image excludes ``.git``, so this returns '' there and the dump line
    drops the date suffix; the baked SHA still identifies the build.
    """
    return _git_output(project_root, "log", "-1", "--format=%cd", "--date=short", "HEAD")


def _redact(value: str) -> str:
    """Redact all but first 4 and last 4 chars.

    Thin wrapper over :func:`agent.redact.mask_secret`. Returns ``""`` for an empty value (matches
    the historical behavior of this helper — ``hermes dump`` formats empty values as blank, not as
    ``"(not set)"``).
    """
    from agent.redact import mask_secret
    return mask_secret(value)


def _gateway_status() -> str:
    """Return a short gateway status string."""
    try:
        from hermes_cli.gateway import get_gateway_runtime_snapshot

        snapshot = get_gateway_runtime_snapshot()
        if snapshot.running:
            mode = "manual" if snapshot.has_process_service_mismatch else snapshot.manager
            return f"running ({mode}, pid {snapshot.gateway_pids[0]})"
        return f"stopped ({snapshot.manager})"
    except Exception:
        return "unknown" if sys.platform.startswith(("linux", "darwin")) else "N/A"


def _count_skills(hermes_home: Path) -> int:
    """Count installed skills."""
    skills_dir = hermes_home / "skills"
    if not skills_dir.is_dir():
        return 0
    return sum(1 for item in skills_dir.rglob("SKILL.md") if not is_excluded_skill_path(item))


def _count_mcp_servers(config: dict) -> int:
    """Count configured MCP servers."""
    return len(config.get("mcp", {}).get("servers", {}))


def _cron_summary(hermes_home: Path) -> str:
    """Return cron jobs summary."""
    jobs_file = hermes_home / "cron" / "jobs.json"
    if not jobs_file.exists():
        return "0"
    try:
        # utf-8-sig: same dialect as cron/jobs.load_jobs — Windows editors
        # may leave a UTF-8 BOM that plain utf-8 json.load rejects.
        with open(jobs_file, encoding="utf-8-sig") as f:
            data = json.load(f)
        jobs = data.get("jobs", [])
        active = sum(1 for j in jobs if j.get("enabled", True))
        return f"{active} active / {len(jobs)} total"
    except Exception:
        return "(error reading)"


_PLATFORM_ENV_VARS = {
    "telegram": "TELEGRAM_BOT_TOKEN",
    "discord": "DISCORD_BOT_TOKEN",
    "slack": "SLACK_BOT_TOKEN",
    "whatsapp": "WHATSAPP_ENABLED",
    "signal": "SIGNAL_HTTP_URL",
    "email": "EMAIL_ADDRESS",
    "sms": "TWILIO_ACCOUNT_SID",
    "matrix": "MATRIX_HOMESERVER_URL",
    "mattermost": "MATTERMOST_URL",
    "homeassistant": "HASS_TOKEN",
    "dingtalk": "DINGTALK_CLIENT_ID",
    "feishu": "FEISHU_APP_ID",
    "wecom": "WECOM_BOT_ID",
    "wecom_callback": "WECOM_CALLBACK_CORP_ID",
    "weixin": "WEIXIN_ACCOUNT_ID",
    "qqbot": "QQ_APP_ID",
}


def _configured_platforms() -> list[str]:
    """Return list of configured messaging platform names."""
    return [name for name, env in _PLATFORM_ENV_VARS.items() if os.getenv(env)]


def _memory_provider(config: dict) -> str:
    """Return the active memory provider name."""
    return config.get("memory", {}).get("provider", "") or "built-in"


def _get_model_and_provider(config: dict) -> tuple[str, str]:
    """Extract model and provider from config."""
    model_cfg = config.get("model", "")
    if isinstance(model_cfg, dict):
        model = model_cfg.get("default") or model_cfg.get("model") or model_cfg.get("name") or "(not set)"
        return model, model_cfg.get("provider") or "(auto)"
    model = model_cfg if isinstance(model_cfg, str) else ""
    return model or "(not set)", "(auto)"


def _config_overrides(config: dict) -> dict[str, str]:
    """Find non-default config values worth reporting."""
    from hermes_cli.config import DEFAULT_CONFIG

    overrides = {}

    # Sections with interesting user-facing overrides
    interesting_paths = [
        ("agent", "max_turns"),
        ("agent", "gateway_timeout"),
        ("agent", "session_stall_timeout"),
        ("agent", "sanitizer_heal_escalation_threshold"),
        ("agent", "tool_use_enforcement"),
        ("agent", "execution_guidance"),
        ("terminal", "backend"),
        ("terminal", "docker_image"),
        ("terminal", "persistent_shell"),
        ("browser", "allow_private_urls"),
        ("compression", "enabled"),
        ("compression", "threshold"),
        ("compression", "in_place"),
        ("display", "streaming"),
        ("display", "skin"),
        ("display", "show_reasoning"),
        ("privacy", "redact_pii"),
        ("tts", "provider"),
    ]

    for section, key in interesting_paths:
        default_section = DEFAULT_CONFIG.get(section, {})
        user_section = config.get(section, {})
        if not isinstance(default_section, dict) or not isinstance(user_section, dict):
            continue
        default_val = default_section.get(key)
        user_val = user_section.get(key)
        if user_val is not None and user_val != default_val:
            overrides[f"{section}.{key}"] = str(user_val)

    # Toolsets (if different from default)
    default_toolsets = DEFAULT_CONFIG.get("toolsets", [])
    user_toolsets = config.get("toolsets", [])
    if user_toolsets != default_toolsets:
        overrides["toolsets"] = str(user_toolsets)

    # Fallback providers
    fallbacks = config.get("fallback_providers", [])
    if fallbacks:
        overrides["fallback_providers"] = str(fallbacks)

    return overrides


# (env var, dump label) in display order.
_API_KEYS = [
    ("OPENROUTER_API_KEY", "openrouter"),
    ("OPENAI_API_KEY", "openai"),
    ("ANTHROPIC_API_KEY", "anthropic"),
    ("ANTHROPIC_TOKEN", "anthropic_token"),
    ("NOUS_API_KEY", "nous"),
    ("GOOGLE_API_KEY", "google/gemini"),
    ("GEMINI_API_KEY", "gemini"),
    ("GLM_API_KEY", "glm/zai"),
    ("ZAI_API_KEY", "zai"),
    ("KIMI_API_KEY", "kimi"),
    ("MINIMAX_API_KEY", "minimax"),
    ("DEEPSEEK_API_KEY", "deepseek"),
    ("DASHSCOPE_API_KEY", "dashscope"),
    ("HF_TOKEN", "huggingface"),
    ("NVIDIA_API_KEY", "nvidia"),
    ("AI_GATEWAY_API_KEY", "ai_gateway"),
    ("OPENCODE_ZEN_API_KEY", "opencode_zen"),
    ("OPENCODE_GO_API_KEY", "opencode_go"),
    ("COMMANDCODE_API_KEY", "commandcode"),
    ("KILOCODE_API_KEY", "kilocode"),
    ("FIRECRAWL_API_KEY", "firecrawl"),
    ("TAVILY_API_KEY", "tavily"),
    ("KEENABLE_API_KEY", "keenable"),
    ("BROWSERBASE_API_KEY", "browserbase"),
    ("FAL_KEY", "fal"),
    ("ELEVENLABS_API_KEY", "elevenlabs"),
    ("GITHUB_TOKEN", "github"),
]


def run_dump(args):
    """Output a compact, copy-pasteable setup summary."""
    show_keys = getattr(args, "show_keys", False)

    # Load env from .env file so key checks work
    env_path = get_env_path()
    load_hermes_dotenv(
        hermes_home=env_path.parent,
        project_env=get_project_root() / ".env",
    )

    project_root = get_project_root()
    hermes_home = get_hermes_home()

    try:
        from hermes_cli import __version__
    except ImportError:
        __version__ = "(unknown)"

    commit = _get_git_commit(project_root)
    commit_date = _get_git_commit_date(project_root)

    try:
        config = load_config()
    except Exception:
        config = {}

    model, provider = _get_model_and_provider(config)

    # Profile
    try:
        from hermes_cli.profiles import get_active_profile_name
        profile = get_active_profile_name() or "(default)"
    except Exception:
        profile = "(default)"

    # Terminal backend — report the EFFECTIVE backend, not just config.yaml.
    # ``terminal.backend`` in config.yaml is bridged to the TERMINAL_ENV env var,
    # but a TERMINAL_ENV set directly in .env / the shell overrides config and is
    # what terminal_tool actually uses (tools/terminal_tool.py reads TERMINAL_ENV).
    # Reporting only the config value hides that override and sends users chasing
    # the wrong cause when the agent runs in a docker/podman sandbox even though
    # config says "local" (and vice-versa). run_dump() has already loaded .env,
    # so os.environ reflects the real override here.
    terminal_cfg = config.get("terminal", {})
    config_backend = terminal_cfg.get("backend", "local")
    env_backend = (os.environ.get("TERMINAL_ENV") or "").strip().lower()
    if env_backend and env_backend != str(config_backend).strip().lower():
        backend = (
            f"{env_backend}  (TERMINAL_ENV overrides config.yaml "
            f"terminal.backend={config_backend})"
        )
    else:
        backend = config_backend

    # OpenAI SDK version
    try:
        import openai
        openai_ver = openai.__version__
    except ImportError:
        openai_ver = "not installed"

    # OS info
    os_info = f"{platform.system()} {platform.release()} {platform.machine()}"

    # Identify the build by commit + the date that commit was made, resolved
    # live via git.  __release_date__ (the package release date) is
    # intentionally NOT shown here — it reads like a wall-clock timestamp and
    # confuses support triage.  The commit date is the real "as-of" date.
    ver_str = f"{__version__} [{commit}]"
    if commit_date:
        ver_str += f" ({commit_date})"
    lines = [
        "--- hermes dump ---",
        f"version:          {ver_str}",
        f"os:               {os_info}",
        f"python:           {sys.version.split()[0]}",
        f"openai_sdk:       {openai_ver}",
        f"profile:          {profile}",
        f"hermes_home:      {display_hermes_home()}",
        f"model:            {model}",
        f"provider:         {provider}",
        f"terminal:         {backend}",
        "",
        "api_keys:",
    ]
    dotenv_keys = _dotenv_key_names()

    for env_var, label in _API_KEYS:
        val = os.getenv(env_var, "")
        display = _redact(val) if show_keys and val else ("set" if val else "not set")
        # Set in this (shell) process but absent from ~/.hermes/.env: a managed
        # backend (launchd/systemd/desktop `serve`) loads .env, not the login
        # shell, so it likely can't see this key — even though the dump reads
        # "set". Flag it so support doesn't chase a phantom "key is configured"
        # (the actual cause of gated tools like web_search going missing).
        if val and env_var not in dotenv_keys:
            display += " (shell only — not in .env; managed/desktop backend may not see it)"
        # A credential added via `hermes auth add openrouter` lives in the
        # credential pool, not as an env var — surface it so the dump doesn't
        # misleadingly read "not set" while `hermes auth list` shows it (#42130).
        if not val and label == "openrouter":
            try:
                from agent.credential_pool import load_pool as _load_pool

                if _load_pool("openrouter").has_credentials():
                    display = "set (auth pool)"
            except Exception:
                pass
        lines.append(f"  {label:<20} {display}")

    # Features summary
    toolsets = config.get("toolsets", ["hermes-cli"])
    lines += [
        "",
        "features:",
        f"  toolsets:           {', '.join(toolsets) if toolsets else '(default)'}",
        f"  mcp_servers:        {_count_mcp_servers(config)}",
        f"  memory_provider:    {_memory_provider(config)}",
        f"  gateway:            {_gateway_status()}",
    ]
    platforms = _configured_platforms()
    lines += [
        f"  platforms:          {', '.join(platforms) if platforms else 'none'}",
        f"  cron_jobs:          {_cron_summary(hermes_home)}",
        f"  skills:             {_count_skills(hermes_home)}",
    ]

    # Config overrides (non-default values)
    overrides = _config_overrides(config)
    if overrides:
        lines += ["", "config_overrides:"]
        lines += [f"  {key}: {val}" for key, val in overrides.items()]

    lines.append("--- end dump ---")
    print("\n".join(lines))