import os
from datetime import date, timedelta
from pathlib import Path

from beaver_gateway.agents.base import BaseAgent, ExposedMcp
from beaver_gateway.agents.claude import ClaudeAgent, ClaudeOptions
from beaver_gateway.agents.raycast import RaycastAgent, RemoteTool, UserPreferences
from beaver_gateway.core.conversations import ConversationTexts, SeedContext
from beaver_gateway.core.prompt import assemble
from beaver_gateway.core.registry import Gateway
from beaver_gateway.core.turn_record import slugify
from beaver_gateway.frontends.admin import AdminFrontend
from beaver_gateway.frontends.anthropic import AnthropicMessagesFrontend
from beaver_gateway.frontends.api import ApiFrontend
from beaver_gateway.frontends.base import Frontend
from beaver_gateway.frontends.markdown import MarkdownFrontend
from beaver_gateway.frontends.mcp_server import McpServerFrontend
from beaver_gateway.mcp.types import HttpMcp, McpServer, McpServerT

VAULT = Path("/vault")
CHATS_DIR = VAULT / "💬 чаты"
BEAVER = VAULT / "мета" / "бобер"
PROMPTS = BEAVER / "промпты"
GRANULES = PROMPTS / "гранулы"
SKILLS = BEAVER / "скиллы"

# Гранулы - чистый markdown; xml-теги, в которые они заворачиваются,
# живут здесь. Голос - папка, файл на тег, в этом порядке.
VOICE = tuple(
    (tag, GRANULES / "голос" / f"{tag}.md")
    for tag in (
        "role",
        "philosophy",
        "user_profile",
        "operating_modes",
        "how_you_operate",
        "interaction_guidelines",
    )
)
PROFILE = ("profile", PROMPTS / "профиль.md")
CORRECTIONS = ("corrections", PROMPTS / "поправки.md")
VAULT_MAP = ("vault_map", GRANULES / "карта-vault.md")


def environment(kind: str) -> tuple[str, Path]:
    return ("environment", GRANULES / "окружения" / f"{kind}.md")


def overlay(tag: str, name: str) -> tuple[str, Path]:
    return (tag, GRANULES / f"{name}.md")


# §4.2: сборки промптов. Окружение kind'а - константная гранула, экземплярное
# (файл, топик) едет первым сообщением. Диспетчер/дистиллятор/триаж - M1b+.
DEEP_PROMPT = (
    *VOICE,
    PROFILE,
    CORRECTIONS,
    VAULT_MAP,
    environment("глубокий"),
    overlay("deep", "глубокий"),
)
QUICK_PROMPT = assemble((*VOICE, PROFILE, overlay("quick", "быстрый")))

# Диспетчер: тот же голос, окружение по kind (§3.12), оверлей по роли.
# Форк ветки (слив) думает как дистиллятор в окружении джоба.
_DISPATCHER_BASE = (*VOICE, PROFILE, CORRECTIONS, VAULT_MAP)
DISPATCHER_PROMPTS = {
    "master": (
        *_DISPATCHER_BASE,
        environment("мастер"),
        overlay("dispatcher", "диспетчер"),
    ),
    "branch": (*_DISPATCHER_BASE, environment("ветка"), overlay("branch", "ветка")),
    "fork": (
        *_DISPATCHER_BASE,
        environment("джоб"),
        overlay("distiller", "дистиллятор"),
    ),
    "job": (
        *_DISPATCHER_BASE,
        environment("джоб"),
        overlay("distiller", "дистиллятор"),
    ),
}

# §4.3: наборы скиллов = папки = плагины. Глубокие грузят общие + vault.
DEEP_SKILLS = (SKILLS / "общие", SKILLS / "vault")
DISPATCHER_SKILLS = (SKILLS / "общие", SKILLS / "диспетчер", SKILLS / "vault")


def chat_path(title: str, agent: str, vault: Path) -> Path:  # noqa: ARG001
    """Новый файл чата в `💬 чаты/`: помесячная папка, дата и тема."""
    today = date.today()
    return (
        vault / f"{today:%Y-%m}" / f"{today:%Y-%m-%d} - {slugify(title, maxlen=60)}.md"
    )


def _calendar_mcps() -> list[HttpMcp]:
    raw = os.environ.get("CALENDAR_MCPS", "").strip()
    servers: list[HttpMcp] = []
    for raw_entry in raw.split(","):
        entry = raw_entry.strip()
        if not entry:
            continue
        name, sep, url = entry.partition("=")
        if not sep or not url.strip():
            msg = f"CALENDAR_MCPS entry must be `name=url`, got: {entry!r}"
            raise ValueError(msg)
        servers.append(McpServer.http(name=f"calendar-{name.strip()}", url=url.strip()))
    return servers


calendar_mcps = _calendar_mcps()
calendar_exposed = tuple(ExposedMcp(name=m.name) for m in calendar_mcps)

# Секреты MCP - только через env подпроцесса (mcp stdio даёт ему белый список
# + это), никогда argv: процесс модели видит `ps` всего контейнера.
mcps: list[McpServerT] = [
    McpServer.stdio(
        name="obsidian-fs",
        command=["bunx", "-y", "@modelcontextprotocol/server-filesystem", "/vault"],
        lenient=True,
    ),
    McpServer.stdio(
        name="firefly",
        command=["bunx", "-y", "@firefly-iii-mcp/local", "--preset", "default"],
        env={
            "FIREFLY_III_PAT": os.environ["FIREFLY_PAT"],
            "FIREFLY_III_BASE_URL": os.environ["FIREFLY_BASE_URL"],
        },
        lenient=True,
    ),
    McpServer.http(name="telegram", url=os.environ["BEAVERGRAM_MCP"]),
    *calendar_mcps,
]

# Руки глубокого (§4.4): firefly без delete_*, obsidian-fs не даётся - свои
# файловые тулзы есть, vault смонтирован в /vault.
CLAUDE_MCPS = (
    ExposedMcp(name="firefly", deny=("delete_*",)),
    ExposedMcp(name="telegram"),
    *calendar_exposed,
)


UserPrefsRu = lambda: UserPreferences(  # noqa: E731
    locale="ru-RU", timezone="Europe/Warsaw", current_date=date.today().isoformat()
)


def dispatcher(name: str, model: str, effort: str | None = None) -> ClaudeAgent:
    return ClaudeAgent(
        name=name,
        model=model,
        cwd=VAULT,
        prompt_sources=DISPATCHER_PROMPTS["master"],
        prompt_sources_by_kind=DISPATCHER_PROMPTS,
        skill_sets=DISPATCHER_SKILLS,
        gateway_tools=("read_conversation", "spawn", "say", "schedule"),
        options=ClaudeOptions(
            effort=effort,
            # §3.7: у диспетчера AskUserQuestion остаётся, планов и ноутбуков нет.
            disallowed_tools=("ExitPlanMode", "EnterPlanMode", "NotebookEdit"),
        ),
        expose_mcps=CLAUDE_MCPS,
    )


def deep(name: str, model: str, effort: str | None = None) -> ClaudeAgent:
    return ClaudeAgent(
        name=name,
        model=model,
        cwd=VAULT,
        prompt_sources=DEEP_PROMPT,
        skill_sets=DEEP_SKILLS,
        options=ClaudeOptions(
            effort=effort,
            # §3.7: у глубоких вопросы текстом, планов и сабагентов нет.
            disallowed_tools=(
                "AskUserQuestion",
                "ExitPlanMode",
                "EnterPlanMode",
                "NotebookEdit",
                "Task",
            ),
        ),
        expose_mcps=CLAUDE_MCPS,
    )


def raycast(name: str, model: str, reasoning_effort: str | None = None) -> RaycastAgent:
    return RaycastAgent(
        name=name,
        model=model,
        system_prompt=QUICK_PROMPT,
        reasoning_effort=reasoning_effort,
        available_native_tools=(RemoteTool.WEB_SEARCH, RemoteTool.READ_PAGE),
        user_preferences=UserPrefsRu,
        expose_mcps=(
            ExposedMcp(name="obsidian-fs"),
            ExposedMcp(name="firefly", deny=("delete_*",)),
            ExposedMcp(name="telegram"),
            *calendar_exposed,
        ),
    )


agents: list[BaseAgent] = [
    # §12.D4: диспетчер на medium; high - по руке или в ветке.
    dispatcher("beaver-dispatcher", "claude-opus-5", effort="medium"),
    deep("beaver-opus-high", "claude-opus-5", effort="high"),
    raycast("beaver-gemini-pro-high", "google-gemini-3.1-pro", reasoning_effort="high"),
    deep("beaver-fable-high", "claude-fable-5", effort="high"),
    deep("beaver-opus-medium", "claude-opus-5", effort="medium"),
    deep("beaver-fable-medium", "claude-fable-5", effort="medium"),
    deep("beaver-opus-xhigh", "claude-opus-5", effort="xhigh"),
    raycast("beaver-gemini-pro-low", "google-gemini-3.1-pro", reasoning_effort="low"),
    raycast(
        "beaver-gemini-flash-high", "google-gemini-3.5-flash", reasoning_effort="high"
    ),
    raycast(
        "beaver-gemini-flash-low", "google-gemini-3.5-flash", reasoning_effort="low"
    ),
]

PUBLIC_BASE_URL = os.environ.get("PUBLIC_BASE_URL", "").rstrip("/")


def _public(suffix: str) -> str | None:
    return f"{PUBLIC_BASE_URL}{suffix}" if PUBLIC_BASE_URL else None


frontends: list[Frontend] = [
    AnthropicMessagesFrontend(
        host="0.0.0.0", port=62990, public_base_url=_public("/anthropic")
    ),
    McpServerFrontend(host="0.0.0.0", port=62991, public_base_url=_public("/mcp")),
    AdminFrontend(host="0.0.0.0", port=62992, public_base_url=_public("/admin")),
    # §3.9: /api показывает всё; домашний фронтенд мастера/ветки до S5 - он же,
    # поэтому дефолтный агент на master/branch живёт здесь, deep - у markdown.
    ApiFrontend(
        host="0.0.0.0",
        port=62994,
        public_base_url=_public("/api"),
        default_agents={"master": "beaver-dispatcher", "branch": "beaver-dispatcher"},
    ),
    MarkdownFrontend(
        host="0.0.0.0",
        port=62993,
        vault_path=CHATS_DIR,
        default_agent="beaver-opus-high",
        log_all_chats=True,
        chat_path=chat_path,
        public_base_url=_public("/md"),
    ),
]


def _read(path: Path) -> str | None:
    return path.read_text(encoding="utf-8").strip() if path.exists() else None


def seed_body(ctx: SeedContext) -> str | None:
    """§8.2: утренний сид - вчерашний хендаут из `дни/`; остальные сиды - gateway."""
    if ctx.seed != "morning":
        return None
    yesterday = date.today() - timedelta(days=1)
    handout = _read(BEAVER / "дни" / f"{yesterday:%Y-%m-%d}.md")
    return handout or "Хендаут за вчера не приехал."


texts = ConversationTexts(
    merge_prompt=_read(GRANULES / "слив.md") or ConversationTexts().merge_prompt,
    seed=seed_body,
)

gateway = Gateway(agents=agents, mcps=mcps, frontends=frontends, texts=texts)