# -*- coding: utf-8 -*-
"""Toolkit factory following AgentScope's skill + tool group practices.

支持从Agent工作空间动态创建工具集，加载builtin/customized技能，
以及合并Agent特定工具。
"""

from typing import Any, Dict, Iterable, List, Optional, Set
from pathlib import Path

import yaml

from backend.agents.agent_workspace import load_agent_workspace_config
from backend.agents.skills_manager import SkillsManager
from backend.agents.skill_metadata import parse_skill_metadata
from backend.config.bootstrap_config import get_bootstrap_config_for_run


def load_agent_profiles() -> Dict[str, Dict[str, Any]]:
    """加载Agent配置文件"""
    config_path = SkillsManager().project_root / "backend" / "config" / "agent_profiles.yaml"
    with open(config_path, "r", encoding="utf-8") as file:
        return yaml.safe_load(file) or {}


def _register_analysis_tool_groups(toolkit: Any) -> None:
    """注册分析工具组"""
    from backend.tools.analysis_tools import TOOL_REGISTRY

    tool_groups = {
        "fundamentals": {
            "description": "Financial health, profitability, growth, and efficiency analysis tools.",
            "active": False,
            "notes": (
                "Use these tools to validate business quality, financial resilience, "
                "and earnings durability before making directional conclusions."
            ),
            "tools": [
                "analyze_profitability",
                "analyze_growth",
                "analyze_financial_health",
                "analyze_efficiency_ratios",
                "analyze_valuation_ratios",
                "get_financial_metrics_tool",
            ],
        },
        "technical": {
            "description": "Trend, momentum, mean reversion, and volatility analysis tools.",
            "active": False,
            "notes": (
                "Use these tools to assess timing, price structure, and risk-reward in "
                "the current market regime."
            ),
            "tools": [
                "analyze_trend_following",
                "analyze_momentum",
                "analyze_mean_reversion",
                "analyze_volatility",
            ],
        },
        "sentiment": {
            "description": "News sentiment and insider activity analysis tools.",
            "active": False,
            "notes": (
                "Use these tools to capture short-horizon catalysts, sentiment shifts, "
                "and behavioral signals around each ticker."
            ),
            "tools": [
                "analyze_news_sentiment",
                "analyze_insider_trading",
            ],
        },
        "valuation": {
            "description": "Intrinsic value and relative valuation analysis tools.",
            "active": False,
            "notes": (
                "Use these tools when the task requires fair value estimation, margin of "
                "safety analysis, or valuation scenario comparison."
            ),
            "tools": [
                "dcf_valuation_analysis",
                "owner_earnings_valuation_analysis",
                "ev_ebitda_valuation_analysis",
                "residual_income_valuation_analysis",
            ],
        },
    }

    for group_name, group_config in tool_groups.items():
        toolkit.create_tool_group(
            group_name=group_name,
            description=group_config["description"],
            active=group_config["active"],
            notes=group_config["notes"],
        )
        for tool_name in group_config["tools"]:
            tool_func = TOOL_REGISTRY.get(tool_name)
            if tool_func:
                toolkit.register_tool_function(
                    tool_func,
                    group_name=group_name,
                )


def _register_portfolio_tool_groups(toolkit: Any, pm_agent: Any) -> None:
    """注册投资组合工具组"""
    toolkit.create_tool_group(
        group_name="portfolio_ops",
        description="Portfolio decision recording tools.",
        active=False,
        notes=(
            "Use portfolio tools only after synthesizing analyst and risk inputs. "
            "Record one explicit decision per ticker."
        ),
    )
    toolkit.register_tool_function(
        pm_agent._make_decision,
        group_name="portfolio_ops",
    )
    if hasattr(pm_agent, "_add_team_analyst"):
        toolkit.register_tool_function(
            pm_agent._add_team_analyst,
            group_name="portfolio_ops",
        )
    if hasattr(pm_agent, "_remove_team_analyst"):
        toolkit.register_tool_function(
            pm_agent._remove_team_analyst,
            group_name="portfolio_ops",
        )
    if hasattr(pm_agent, "_set_active_analysts"):
        toolkit.register_tool_function(
            pm_agent._set_active_analysts,
            group_name="portfolio_ops",
        )
    if hasattr(pm_agent, "_create_team_analyst"):
        toolkit.register_tool_function(
            pm_agent._create_team_analyst,
            group_name="portfolio_ops",
        )


def _register_risk_tool_groups(toolkit: Any) -> None:
    """注册风险工具组"""
    from backend.tools.risk_tools import (
        assess_margin_and_liquidity,
        assess_position_concentration,
        assess_volatility_exposure,
    )

    toolkit.create_tool_group(
        group_name="risk_ops",
        description="Risk diagnostics for concentration, leverage, and volatility.",
        active=False,
        notes=(
            "Use risk tools to quantify concentration, margin pressure, and volatility "
            "before writing the final risk memo."
        ),
    )
    toolkit.register_tool_function(
        assess_position_concentration,
        group_name="risk_ops",
    )
    toolkit.register_tool_function(
        assess_margin_and_liquidity,
        group_name="risk_ops",
    )
    toolkit.register_tool_function(
        assess_volatility_exposure,
        group_name="risk_ops",
    )


def create_agent_toolkit(
    agent_id: str,
    config_name: str,
    owner: Any = None,
    active_skill_dirs: Iterable[str] | None = None,
) -> Any:
    """Create a Toolkit with agent skills and grouped tools.

    Args:
        agent_id: Agent标识符
        config_name: 运行配置名称
        owner: Agent实例（用于注册特定方法）
        active_skill_dirs: 显式指定的活动技能目录列表

    Returns:
        配置好的Toolkit实例
    """
    from agentscope.tool import Toolkit

    profiles = load_agent_profiles()
    profile = profiles.get(agent_id, {})
    skills_manager = SkillsManager()
    agent_config = load_agent_workspace_config(
        skills_manager.get_agent_asset_dir(config_name, agent_id) / "agent.yaml",
    )
    bootstrap_config = get_bootstrap_config_for_run(
        skills_manager.project_root,
        config_name,
    )
    override = bootstrap_config.agent_override(agent_id)
    active_groups = override.get(
        "active_tool_groups",
        agent_config.active_tool_groups
        or profile.get("active_tool_groups", []),
    )
    disabled_groups = set(agent_config.disabled_tool_groups)
    if disabled_groups:
        active_groups = [
            group_name
            for group_name in active_groups
            if group_name not in disabled_groups
        ]

    toolkit = Toolkit(
        agent_skill_instruction=(
            "<system-info>You have access to project skills. Each skill lives in a "
            "directory and is described by SKILL.md. Follow the skill instructions "
            "when they are relevant to the current task.</system-info>"
        ),
        agent_skill_template="- {name} (dir: {dir}): {description}",
    )

    if agent_id.endswith("_analyst"):
        _register_analysis_tool_groups(toolkit)
    elif agent_id == "portfolio_manager" and owner is not None:
        _register_portfolio_tool_groups(toolkit, owner)
    elif agent_id == "risk_manager":
        _register_risk_tool_groups(toolkit)

    if active_skill_dirs is None:
        skill_names = skills_manager.resolve_agent_skill_names(
            config_name=config_name,
            agent_id=agent_id,
            default_skills=profile.get("skills", []),
        )
        active_skill_dirs = [
            skills_manager.get_agent_active_root(config_name, agent_id) / skill_name
            for skill_name in skill_names
        ]

    for skill_dir in active_skill_dirs:
        toolkit.register_agent_skill(str(skill_dir))

    apply_skill_tool_restrictions(toolkit, active_skill_dirs)

    if active_groups:
        toolkit.update_tool_groups(group_names=active_groups, active=True)

    return toolkit


def create_toolkit_from_workspace(
    agent_id: str,
    config_name: str,
    owner: Any = None,
    include_builtin: bool = True,
    include_customized: bool = True,
    include_local: bool = True,
    active_groups: Optional[List[str]] = None,
) -> Any:
    """从Agent工作空间创建工具集

    这是create_agent_toolkit的增强版本，支持更灵活的技能加载策略。

    Args:
        agent_id: Agent标识符
        config_name: 运行配置名称
        owner: Agent实例
        include_builtin: 是否包含builtin技能
        include_customized: 是否包含customized技能
        include_local: 是否包含agent-local技能
        active_groups: 显式指定的活动工具组

    Returns:
        配置好的Toolkit实例
    """
    from agentscope.tool import Toolkit

    skills_manager = SkillsManager()
    agent_config = load_agent_workspace_config(
        skills_manager.get_agent_asset_dir(config_name, agent_id) / "agent.yaml",
    )

    toolkit = Toolkit(
        agent_skill_instruction=(
            "<system-info>You have access to project skills. Each skill lives in a "
            "directory and is described by SKILL.md. Follow the skill instructions "
            "when they are relevant to the current task.</system-info>"
        ),
        agent_skill_template="- {name} (dir: {dir}): {description}",
    )

    # 注册Agent类型的默认工具组
    if agent_id.endswith("_analyst"):
        _register_analysis_tool_groups(toolkit)
    elif agent_id == "portfolio_manager" and owner is not None:
        _register_portfolio_tool_groups(toolkit, owner)
    elif agent_id == "risk_manager":
        _register_risk_tool_groups(toolkit)

    # 收集所有要加载的技能目录
    skill_dirs: List[Path] = []

    # 1. 从active目录加载已同步的技能
    active_root = skills_manager.get_agent_active_root(config_name, agent_id)
    if active_root.exists():
        for skill_dir in sorted(active_root.iterdir()):
            if skill_dir.is_dir() and (skill_dir / "SKILL.md").exists():
                skill_dirs.append(skill_dir)

    # 2. 从installed目录加载
    installed_root = skills_manager.get_agent_installed_root(config_name, agent_id)
    if installed_root.exists():
        for skill_dir in sorted(installed_root.iterdir()):
            if skill_dir.is_dir() and (skill_dir / "SKILL.md").exists():
                if skill_dir not in skill_dirs:
                    skill_dirs.append(skill_dir)

    # 3. 从local目录加载agent-local技能
    if include_local:
        local_root = skills_manager.get_agent_local_root(config_name, agent_id)
        if local_root.exists():
            for skill_dir in sorted(local_root.iterdir()):
                if skill_dir.is_dir() and (skill_dir / "SKILL.md").exists():
                    if skill_dir not in skill_dirs:
                        skill_dirs.append(skill_dir)

    # 注册技能到toolkit
    for skill_dir in skill_dirs:
        toolkit.register_agent_skill(str(skill_dir))

    apply_skill_tool_restrictions(toolkit, skill_dirs)

    # 激活指定的工具组
    if active_groups is None:
        # 从配置中读取
        profiles = load_agent_profiles()
        profile = profiles.get(agent_id, {})
        active_groups = agent_config.active_tool_groups or profile.get("active_tool_groups", [])

        # 应用禁用列表
        disabled_groups = set(agent_config.disabled_tool_groups)
        if disabled_groups:
            active_groups = [g for g in active_groups if g not in disabled_groups]

    if active_groups:
        toolkit.update_tool_groups(group_names=active_groups, active=True)

    return toolkit


def get_toolkit_info(toolkit: Any) -> Dict[str, Any]:
    """获取工具集信息

    Args:
        toolkit: Toolkit实例

    Returns:
        工具集信息字典
    """
    info = {
        "tool_groups": {},
        "skills": [],
        "tools_count": 0,
    }

    # 获取工具组信息
    groups = getattr(toolkit, "tool_groups", {})
    for name, group in groups.items():
        info["tool_groups"][name] = {
            "description": getattr(group, "description", ""),
            "active": getattr(group, "active", False),
            "tools": [t.name for t in getattr(group, "tools", [])],
        }
        info["tools_count"] += len(getattr(group, "tools", []))

    # 获取技能信息
    skills = getattr(toolkit, "agent_skills", [])
    for skill in skills:
        info["skills"].append({
            "name": getattr(skill, "name", "unknown"),
            "path": getattr(skill, "path", ""),
            "description": getattr(skill, "description", ""),
        })

    return info


def refresh_toolkit_skills(
    toolkit: Any,
    agent_id: str,
    config_name: str,
) -> None:
    """刷新工具集中的技能

    重新从工作空间加载技能，用于运行时技能变更。

    Args:
        toolkit: Toolkit实例
        agent_id: Agent标识符
        config_name: 运行配置名称
    """
    skills_manager = SkillsManager()

    # 清除现有技能
    if hasattr(toolkit, "agent_skills"):
        toolkit.agent_skills.clear()

    # 重新加载active技能
    active_root = skills_manager.get_agent_active_root(config_name, agent_id)
    if active_root.exists():
        for skill_dir in sorted(active_root.iterdir()):
            if skill_dir.is_dir() and (skill_dir / "SKILL.md").exists():
                toolkit.register_agent_skill(str(skill_dir))

    # 重新加载local技能
    local_root = skills_manager.get_agent_local_root(config_name, agent_id)
    if local_root.exists():
        for skill_dir in sorted(local_root.iterdir()):
            if skill_dir.is_dir() and (skill_dir / "SKILL.md").exists():
                toolkit.register_agent_skill(str(skill_dir))


def apply_skill_tool_restrictions(toolkit: Any, skill_dirs: List[Path]) -> None:
    """Apply per-skill allowed_tools / denied_tools restrictions to a toolkit.

    If a skill specifies allowed_tools, only those tools are accessible when
    that skill is active. If a skill specifies denied_tools, those tools are
    removed regardless of allowed_tools. Denied tools take precedence.

    This function annotates the toolkit with a _skill_tool_restrictions map
    that downstream code can consult when resolving available tools.

    Args:
        toolkit: The agentscope Toolkit instance.
        skill_dirs: List of skill directory paths to inspect.
    """
    restrictions: Dict[str, Dict[str, Set[str]]] = {}
    for skill_dir in skill_dirs:
        metadata = parse_skill_metadata(skill_dir, source="active")
        if not metadata.allowed_tools and not metadata.denied_tools:
            continue
        restrictions[skill_dir.name] = {
            "allowed": set(metadata.allowed_tools),
            "denied": set(metadata.denied_tools),
        }
    if hasattr(toolkit, "agent_skills"):
        for skill in toolkit.agent_skills:
            skill_name = getattr(skill, "name", "") or ""
            if skill_name in restrictions:
                setattr(
                    skill,
                    "_tool_allowed",
                    restrictions[skill_name]["allowed"],
                )
                setattr(
                    skill,
                    "_tool_denied",
                    restrictions[skill_name]["denied"],
                )


def get_skill_effective_tools(skill: Any) -> Optional[Set[str]]:
    """Return the effective tool set for a skill after applying restrictions.

    If the skill has no restrictions (no allowed_tools / denied_tools),
    returns None to indicate "all tools allowed".

    If allowed_tools is set, returns only those tools minus denied_tools.
    If only denied_tools is set, returns all tools minus denied_tools.

    Args:
        skill: A skill object previously registered via register_agent_skill.

    Returns:
        A set of allowed tool names, or None if unrestricted.
    """
    allowed = getattr(skill, "_tool_allowed", None)
    denied = getattr(skill, "_tool_denied", set())

    if allowed is None:
        return None

    effective = allowed - denied
    return effective


def filter_toolkit_by_skill(
    toolkit: Any,
    skill_name: str,
) -> Set[str]:
    """Return the set of tool names that are accessible for a given skill.

    Args:
        toolkit: The agentscope Toolkit instance.
        skill_name: Name of the skill to query.

    Returns:
        Set of allowed tool names, or all registered tool names if unrestricted.
    """
    if not hasattr(toolkit, "agent_skills"):
        return set()

    for skill in toolkit.agent_skills:
        name = getattr(skill, "name", "") or ""
        if name != skill_name:
            continue
        effective = get_skill_effective_tools(skill)
        if effective is None:
            return set()
        return effective

    return set()