"""Agents NAS workspace — alle agent-data op //10.4.7.11/share/Agents."""
from __future__ import annotations

import json
import os
import re
from datetime import datetime, timezone
from pathlib import Path
from typing import Any

AGENTS_NAS_ROOT = Path(os.getenv("NAS_AGENTS_ROOT", "/data/nas-share/Agents"))
AGENTS_NAS_UNC = os.getenv("NAS_AGENTS_UNC", "//10.4.7.11/share/Agents")
AGENTS_NAS_SMB = os.getenv("NAS_AGENTS_SMB", "//10.4.7.11/share/Agents")

AGENT_SUBDIRS = ("notes", "exports", "memory", "inbox", "outbox")


def slugify(name: str, max_len: int = 40) -> str:
    s = re.sub(r"[^a-zA-Z0-9._-]+", "-", (name or "file").strip()).strip("-._")
    return (s[:max_len] or "file")


def root() -> Path:
    return AGENTS_NAS_ROOT


def unc() -> str:
    return AGENTS_NAS_UNC


def smb() -> str:
    return AGENTS_NAS_SMB


def ensure_root() -> Path:
    AGENTS_NAS_ROOT.mkdir(parents=True, exist_ok=True)
    sys_dir = AGENTS_NAS_ROOT / "_system"
    sys_dir.mkdir(parents=True, exist_ok=True)
    readme = sys_dir / "README.txt"
    if not readme.exists():
        readme.write_text(
            "Foodlinkk Agents NAS workspace\n"
            f"Pad: {AGENTS_NAS_SMB}\n"
            "Elke agent schrijft ALLEEN in Agents/<agent_key>/...\n"
            "Submappen: notes, exports, memory, inbox, outbox\n",
            encoding="utf-8",
        )
    meta = {
        "unc": AGENTS_NAS_UNC,
        "smb": AGENTS_NAS_SMB,
        "container_path": str(AGENTS_NAS_ROOT),
        "updated_at": datetime.now(timezone.utc).isoformat(),
    }
    (sys_dir / "workspace.json").write_text(
        json.dumps(meta, indent=2, ensure_ascii=False), encoding="utf-8"
    )
    return AGENTS_NAS_ROOT


def ensure_agent_folder(agent_key: str) -> Path:
    ensure_root()
    key = slugify(agent_key or "unknown", 32).lower()
    base = AGENTS_NAS_ROOT / key
    for sub in AGENT_SUBDIRS:
        (base / sub).mkdir(parents=True, exist_ok=True)
    meta = {
        "agent_key": key,
        "path": str(base),
        "smb": f"{AGENTS_NAS_SMB}/{key}",
        "subdirs": list(AGENT_SUBDIRS),
    }
    (base / "agent.json").write_text(json.dumps(meta, indent=2, ensure_ascii=False), encoding="utf-8")
    return base


def bootstrap_all(agent_keys: list[str] | None = None) -> dict[str, Any]:
    ensure_root()
    keys = agent_keys or []
    created = []
    for k in keys:
        p = ensure_agent_folder(str(k))
        created.append(str(p))
    return {
        "ok": True,
        "root": str(AGENTS_NAS_ROOT),
        "smb": AGENTS_NAS_SMB,
        "agents": created,
        "count": len(created),
    }


def memory_rule_text() -> str:
    return (
        "NAS DATA (HARDCODED — VERPLICHT):\n"
        "- Alle bestanden/data die jij creëert schrijf je naar de Agents-map op de FL-nas.\n"
        f"- Pad: {AGENTS_NAS_SMB}/<jouw_agent_key>/\n"
        f"- Server/container pad: {AGENTS_NAS_ROOT}/<jouw_agent_key>/\n"
        "- Submappen: notes/ (notities), exports/ (rapporten), memory/ (lange-termijn), "
        "inbox/ (inkomend), outbox/ (uitgaand).\n"
        "- NOOIT alleen in /tmp laten staan — altijd op deze NAS-map opslaan.\n"
        "- Noem in je antwoord het NAS-pad als je iets hebt opgeslagen.\n"
    )


def write_text(agent_key: str, relative_path: str, content: str, *, subdir: str = "notes") -> dict[str, Any]:
    base = ensure_agent_folder(agent_key)
    sub = subdir if subdir in AGENT_SUBDIRS else "notes"
    rel = relative_path.lstrip("/\\").replace("..", "")
    if not rel:
        rel = f"note-{datetime.now(timezone.utc).strftime('%Y%m%d-%H%M%S')}.txt"
    target = (base / sub / rel).resolve()
    if not str(target).startswith(str(base.resolve())):
        raise ValueError("Pad buiten agent-map niet toegestaan")
    target.parent.mkdir(parents=True, exist_ok=True)
    target.write_text(content if content.endswith("\n") else content + "\n", encoding="utf-8")
    key = slugify(agent_key).lower()
    return {
        "ok": True,
        "path": str(target),
        "smb": f"{AGENTS_NAS_SMB}/{key}/{sub}/{rel}",
    }


def write_json(agent_key: str, relative_path: str, data: Any, *, subdir: str = "exports") -> dict[str, Any]:
    name = relative_path if relative_path.endswith(".json") else relative_path + ".json"
    return write_text(
        agent_key,
        name,
        json.dumps(data, indent=2, ensure_ascii=False, default=str),
        subdir=subdir,
    )


def agent_paths(agent_key: str) -> dict[str, str]:
    key = slugify(agent_key or "unknown", 32).lower()
    return {
        "root": str(AGENTS_NAS_ROOT / key),
        "smb": f"{AGENTS_NAS_SMB}/{key}",
    }