"""registry_dev.py — Tool sviluppo: git, npm, pip, lint, scaffold tools leggeri.

Estratto da registry.py per ridurre il file principale.

Funzioni esportate:
  _directory_tree, _file_search, _git_status, _git_clone, _git_diff,
  _recall, _list_files, _diff_text, _validate_json, _lint_code_tool,
  _git_push, _git_sync_vfs, _git_commit, _npm_install, _npm_run,
  _pip_install, _type_check
"""
from __future__ import annotations
import httpx
import asyncio
import subprocess
import tempfile
import os
import sys
import logging
_logger = logging.getLogger("tools.registry")

# ─── S763: 10 tool mancanti (S760 dichiarati mai implementati) ──────────────
# Presenti in planner.py PLANNER_SYSTEM, agent.py _STEP_VISIBILITY/_NARR_QUICK,
# _TOOL_NEEDED_RE ma senza _fn in TOOL_REGISTRY -> KeyError silenzioso al runtime.

async def _directory_tree(path: str = ".", max_depth: int = 3, show_hidden: bool = False) -> dict:
    """S763: Albero filesystem con os.walk."""
    import os as _os
    try:
        base = _os.path.abspath(path)
        if not _os.path.isdir(base):
            return {"error": f"Percorso non trovato: {path}"}
        _IGNORE = {".git", "__pycache__", "node_modules", ".venv", "venv", "dist", "build", ".next", ".cache"}
        lines: list = [f"{base}/"]
        count = 0
        for root, dirs, files in _os.walk(base):
            depth = root.replace(base, "").count(_os.sep)
            if depth >= max_depth:
                dirs.clear()
                continue
            dirs[:] = sorted(d for d in dirs
                             if (show_hidden or not d.startswith(".")) and d not in _IGNORE)
            ind = "  " * (depth + 1)
            for d in dirs:
                lines.append(f"{ind}+-- {d}/")
            for fname in sorted(files):
                if not show_hidden and fname.startswith("."):
                    continue
                if count >= 200:
                    lines.append(f"{ind}... (troncato)")
                    break
                lines.append(f"{ind}    {fname}")
                count += 1
        return {"ok": True, "path": base, "tree": "\n".join(lines), "count": count}
    except Exception as e:
        return {"error": str(e)[:300]}


async def _file_search(pattern: str, path: str = ".", file_glob: str = "*") -> dict:
    """S763: grep -rn con fallback Python os.walk+read."""
    import os as _os
    try:
        proc = await asyncio.create_subprocess_exec(
            "grep", "-rn", "--include", file_glob, "--color=never", "-m", "5",
            pattern, _os.path.abspath(path),
            stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE,
        )
        out, _ = await asyncio.wait_for(proc.communicate(), timeout=15)
        lines = [l for l in out.decode("utf-8", errors="replace").splitlines() if l.strip()]
        if proc.returncode == 1 and not lines:
            return {"ok": True, "pattern": pattern, "matches": [], "count": 0, "note": "Nessun risultato"}
        return {"ok": True, "pattern": pattern, "path": path, "matches": lines[:50], "count": len(lines)}
    except (FileNotFoundError, asyncio.TimeoutError):
        import re as _re2
        matches: list = []
        try:
            _pat = _re2.compile(pattern, _re2.IGNORECASE)
            for root, _, files in _os.walk(path):
                for fname in files:
                    fpath = _os.path.join(root, fname)
                    try:
                        with open(fpath, "r", encoding="utf-8", errors="replace") as fh:
                            for i, line in enumerate(fh, 1):
                                if _pat.search(line):
                                    matches.append(f"{fpath}:{i}: {line.rstrip()[:200]}")
                                    if len(matches) >= 50:
                                        break
                    except Exception:
                        continue
                    if len(matches) >= 50:
                        break
        except Exception as ex:
            return {"error": str(ex)[:300]}
        return {"ok": True, "pattern": pattern, "matches": matches, "count": len(matches)}
    except Exception as e:
        return {"error": str(e)[:300]}


async def _git_status(cwd: str = ".") -> dict:
    """S763: branch + status --short + log -5. Read-only."""
    try:
        async def _rg(*args: str) -> str:
            p = await asyncio.create_subprocess_exec(
                "git", *args, cwd=cwd,
                stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE,
            )
            out, _ = await asyncio.wait_for(p.communicate(), timeout=10)
            return out.decode("utf-8", errors="replace").strip()
        return {
            "ok":     True,
            "branch": await _rg("rev-parse", "--abbrev-ref", "HEAD"),
            "status": await _rg("status", "--short") or "(working tree clean)",
            "log":    await _rg("log", "--oneline", "-5"),
        }
    except Exception as e:
        return {"error": str(e)[:300]}


async def _git_clone(url: str, directory: str = "", depth: int = 0) -> dict:
    """S763: git clone <url> [dir]. Timeout 120s. Risk medium."""
    try:
        cmd = ["git", "clone"]
        if depth > 0:
            cmd += ["--depth", str(depth)]
        cmd.append(url)
        if directory:
            cmd.append(directory)
        proc = await asyncio.create_subprocess_exec(
            *cmd, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE,
        )
        out, err = await asyncio.wait_for(proc.communicate(), timeout=120)
        combined = (out + err).decode("utf-8", errors="replace")[:1000]
        if proc.returncode == 0:
            target = directory or url.rstrip("/").split("/")[-1].removesuffix(".git")
            return {"ok": True, "directory": target, "output": combined}
        return {"ok": False, "error": combined}
    except asyncio.TimeoutError:
        return {"ok": False, "error": "timeout 120s"}
    except Exception as e:
        return {"ok": False, "error": str(e)[:300]}


async def _git_diff(cwd: str = ".", staged: bool = False) -> dict:
    """S763: git diff [--cached]. Stat + diff max 3000 chars. Read-only."""
    try:
        extra = ["--cached"] if staged else []
        async def _rg(*a: str) -> str:
            p = await asyncio.create_subprocess_exec(
                "git", *a, cwd=cwd,
                stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE,
            )
            out, _ = await asyncio.wait_for(p.communicate(), timeout=15)
            return out.decode("utf-8", errors="replace")
        stat = await _rg("diff", *extra, "--stat", "--no-color")
        diff = await _rg("diff", *extra, "--no-color")
        return {"staged": staged, "stat": stat[:1000], "diff": diff[:3000] or "(nessuna modifica)"}
    except Exception as e:
        return {"error": str(e)[:300]}




async def _recall(query: str, limit: int = 5) -> dict:
    """S-GAP13: cerca in agentMemory (chiave/valore in-process). Fallback su entries recenti."""
    try:
        from api.state import _get_mem_manager_async as _gmm
        mem = await _gmm()
        if mem is None:
            return {"results": [], "note": "MemoryManager non disponibile"}
        results = []
        try:
            raw = await mem.search(query, limit=limit)
            results = [{"key": r.get("key",""), "value": r.get("value",""), "score": r.get("score",0)} for r in (raw or [])]
        except Exception:
            try:
                raw = await mem.list(limit=limit * 2)
                q_lower = query.lower()
                for r in (raw or []):
                    k = str(r.get("key","")).lower()
                    v = str(r.get("value","")).lower()
                    if q_lower in k or q_lower in v:
                        results.append({"key": r.get("key",""), "value": r.get("value","")})
                        if len(results) >= limit:
                            break
            except Exception as _exc:
                _logger.debug("[registry] silenced %s", type(_exc).__name__)  # noqa: BLE001
        return {"results": results, "count": len(results), "query": query}
    except Exception as e:
        return {"results": [], "error": str(e)[:200]}


async def _list_files(path: str = ".", recursive: bool = False, max_items: int = 100) -> dict:
    """S-GAP13: elenca file nella directory. os.listdir/os.walk. Max 100 items."""
    import os as _os
    try:
        path = _os.path.abspath(path)
        if not _os.path.exists(path):
            return {"ok": False, "error": f"Path non trovato: {path}"}
        if not _os.path.isdir(path):
            return {"ok": False, "error": f"Non e una directory: {path}"}
        items = []
        if recursive:
            for root, dirs, files in _os.walk(path):
                dirs[:] = [d for d in dirs if not d.startswith('.') and d not in ('node_modules','__pycache__','.git')]
                rel_root = _os.path.relpath(root, path)
                for f in files:
                    rel = _os.path.join(rel_root, f) if rel_root != '.' else f
                    items.append(rel)
                    if len(items) >= max_items:
                        break
                if len(items) >= max_items:
                    break
        else:
            for entry in _os.scandir(path):
                items.append(entry.name + ('/' if entry.is_dir() else ''))
                if len(items) >= max_items:
                    break
        return {"ok": True, "path": path, "items": items, "count": len(items), "truncated": len(items) >= max_items}
    except Exception as e:
        return {"ok": False, "error": str(e)[:300]}


def _diff_text(text_a: str, text_b: str, context_lines: int = 3) -> dict:
    """S-GAP13: confronta due testi con difflib.unified_diff. Restituisce patch testo."""
    import difflib
    try:
        lines_a = text_a.splitlines(keepends=True)
        lines_b = text_b.splitlines(keepends=True)
        diff = list(difflib.unified_diff(lines_a, lines_b, fromfile="a", tofile="b", n=context_lines))
        patch = "".join(diff)
        added   = sum(1 for l in diff if l.startswith('+') and not l.startswith('+++'))
        removed = sum(1 for l in diff if l.startswith('-') and not l.startswith('---'))
        return {"patch": patch[:4000], "added": added, "removed": removed, "identical": len(diff) == 0}
    except Exception as e:
        return {"patch": "", "error": str(e)[:200]}


def _validate_json(json_str: str, schema: dict | None = None) -> dict:
    """S-GAP13: valida JSON (json.loads). Con schema dict usa jsonschema se disponibile."""
    import json
    try:
        parsed = json.loads(json_str)
        result: dict = {"valid": True, "type": type(parsed).__name__}
        if schema:
            try:
                import jsonschema
                jsonschema.validate(parsed, schema)
                result["schema_valid"] = True
            except ImportError:
                result["schema_note"] = "jsonschema non installato — validazione struttura skippata"
            except Exception as ve:
                result["valid"] = False
                result["schema_error"] = str(ve)[:400]
        return result
    except json.JSONDecodeError as e:
        return {"valid": False, "error": f"JSON non valido: {e.msg} (riga {e.lineno}, col {e.colno})"}
    except Exception as e:
        return {"valid": False, "error": str(e)[:200]}


async def _lint_code_tool(content: str, language: str = "auto", path: str = "") -> dict:
    """S-GAP13: analisi statica codice. Wrapper di api.linter.lint_code. Auto-detect da estensione."""
    try:
        if language == "auto" and path:
            ext = path.rsplit(".", 1)[-1].lower() if "." in path else ""
            language = {"py": "python", "js": "javascript", "jsx": "javascript",
                        "ts": "typescript", "tsx": "typescript", "json": "json"}.get(ext, "python")
        from api.linter import lint_code as _lc
        return await _lc(content=content, language=language, path=path)
    except Exception as e:
        return {"ok": False, "errors": [], "warnings": [], "error": str(e)[:200]}

async def _git_push(remote: str = "origin", branch: str = "", cwd: str = ".") -> dict:
    """S-GAP12: git push <remote> [<branch>]. Timeout 70s. Risk high."""
    import asyncio as _aio
    try:
        cmd = ["git", "push", remote]
        if branch:
            cmd.append(branch)
        proc = await _aio.create_subprocess_exec(
            *cmd, cwd=cwd,
            stdout=_aio.subprocess.PIPE, stderr=_aio.subprocess.PIPE,
        )
        out, err = await _aio.wait_for(proc.communicate(), timeout=65)
        combined = (out + err).decode("utf-8", errors="replace")[:800]
        return {"ok": proc.returncode == 0, "output": combined, "code": proc.returncode}
    except _aio.TimeoutError:
        return {"ok": False, "error": "git push timeout (65s)"}
    except Exception as e:
        return {"ok": False, "error": str(e)[:300]}


async def _git_sync_vfs(
    files: dict,
    branch: str = "agent-state",
    message: str = "chore(vfs): auto-sync session",
    repo: str = "",
) -> dict:
    """
    RF-1: git_sync_vfs — Commit atomico VFS→GitHub via Git Data API.

    Flusso: GET HEAD → POST blob×N → POST tree → POST commit → PATCH/POST ref.
    Branch inesistente: creato automaticamente da HEAD di main.
    Repo: param repo oppure env GITHUB_REPO.
    Fail-safe: ritorna error se GITHUB_TOKEN mancante.
    """
    import base64
    import httpx as _httpx
    import os as _os

    gh_token = _os.environ.get("GITHUB_TOKEN", "")
    if not gh_token:
        return {"success": False, "error": "GITHUB_TOKEN non configurato"}
    if not files:
        return {"success": False, "error": "Nessun file da sincronizzare"}

    gh_repo = repo or _os.environ.get("GITHUB_REPO", "")
    if not gh_repo:
        return {"success": False, "error": "Specifica repo='owner/repo' oppure imposta GITHUB_REPO env"}

    _hdrs = {
        "Authorization": f"token {gh_token}",
        "Accept": "application/vnd.github.v3+json",
        "Content-Type": "application/json",
    }
    base_url = f"https://api.github.com/repos/{gh_repo}"

    try:
        async with _httpx.AsyncClient(timeout=30.0, headers=_hdrs) as _c:
            # 1. Leggi HEAD branch target (o fallback a main)
            base_sha: str | None = None
            branch_exists = False
            _ref_r = await _c.get(f"{base_url}/git/ref/heads/{branch}")
            if _ref_r.status_code == 200:
                base_sha = _ref_r.json()["object"]["sha"]
                branch_exists = True
            else:
                _main_r = await _c.get(f"{base_url}/git/ref/heads/main")
                if _main_r.status_code == 200:
                    base_sha = _main_r.json()["object"]["sha"]
                else:
                    return {"success": False, "error": f"Impossibile leggere HEAD: {_main_r.status_code}"}

            # 2. Crea blob per ogni file
            tree_items: list[dict] = []
            for fpath, content in files.items():
                if not isinstance(content, str):
                    content = str(content)
                encoded = base64.b64encode(content.encode("utf-8", errors="replace")).decode()
                _blob_r = await _c.post(f"{base_url}/git/blobs", json={"content": encoded, "encoding": "base64"})
                if _blob_r.status_code not in (200, 201):
                    return {"success": False, "error": f"Blob fail [{fpath}]: {_blob_r.status_code}"}
                tree_items.append({"path": fpath, "mode": "100644", "type": "blob", "sha": _blob_r.json()["sha"]})

            # 3. Crea tree
            _tree_payload: dict = {"tree": tree_items}
            if base_sha:
                _tree_payload["base_tree"] = base_sha
            _tree_r = await _c.post(f"{base_url}/git/trees", json=_tree_payload)
            if _tree_r.status_code not in (200, 201):
                return {"success": False, "error": f"Tree fail: {_tree_r.status_code}"}
            tree_sha = _tree_r.json()["sha"]

            # 4. Crea commit
            _commit_payload: dict = {"message": message, "tree": tree_sha}
            if base_sha:
                _commit_payload["parents"] = [base_sha]
            _commit_r = await _c.post(f"{base_url}/git/commits", json=_commit_payload)
            if _commit_r.status_code not in (200, 201):
                return {"success": False, "error": f"Commit fail: {_commit_r.status_code}"}
            commit_sha = _commit_r.json()["sha"]

            # 5. PATCH ref (o POST se branch nuovo)
            if branch_exists:
                _ref_upd = await _c.patch(f"{base_url}/git/refs/heads/{branch}", json={"sha": commit_sha})
            else:
                _ref_upd = await _c.post(f"{base_url}/git/refs", json={"ref": f"refs/heads/{branch}", "sha": commit_sha})
            if _ref_upd.status_code not in (200, 201):
                return {"success": False, "error": f"Ref update fail: {_ref_upd.status_code} — {_ref_upd.text[:200]}"}

            return {
                "success": True,
                "commit_sha": commit_sha,
                "branch": branch,
                "files_synced": len(tree_items),
                "repo": gh_repo,
                "url": f"https://github.com/{gh_repo}/tree/{branch}",
            }
    except Exception as _e:
        return {"success": False, "error": f"git_sync_vfs errore: {str(_e)[:300]}"}


async def _git_commit(message: str, cwd: str = ".", push: bool = False, add_all: bool = True) -> dict:
    """S763: git add -A + commit -m. push=True per git push. Risk medium."""
    try:
        async def _run(cmd: list) -> tuple:
            p = await asyncio.create_subprocess_exec(
                *cmd, cwd=cwd,
                stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE,
            )
            out, err = await asyncio.wait_for(p.communicate(), timeout=30)
            return p.returncode, (out + err).decode("utf-8", errors="replace")[:500]
        if add_all:
            rc, out = await _run(["git", "add", "-A"])
            if rc != 0:
                return {"ok": False, "step": "git add", "error": out}
        rc, out = await _run(["git", "commit", "-m", message])
        if rc != 0:
            return {"ok": False, "step": "git commit", "error": out}
        result: dict = {"ok": True, "commit_output": out}
        if push:
            rc_p, out_p = await _run(["git", "push"])
            result["push_ok"] = rc_p == 0
            result["push_output"] = out_p
        return result
    except Exception as e:
        return {"ok": False, "error": str(e)[:300]}


async def _npm_install(cwd: str = ".", manager: str = "auto", args: str = "") -> dict:
    """S763: npm/pnpm/yarn install. Auto-detecta da lockfile. Timeout 120s."""
    import os as _os
    try:
        if manager == "auto":
            manager = ("pnpm" if _os.path.exists(_os.path.join(cwd, "pnpm-lock.yaml"))
                       else "yarn" if _os.path.exists(_os.path.join(cwd, "yarn.lock"))
                       else "npm")
        cmd = [manager, "install"] + ([args] if args else [])
        proc = await asyncio.create_subprocess_exec(
            *cmd, cwd=cwd,
            stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE,
        )
        out, err = await asyncio.wait_for(proc.communicate(), timeout=120)
        combined = (out + err).decode("utf-8", errors="replace")[:2000]
        return {"ok": proc.returncode == 0, "manager": manager, "output": combined, "code": proc.returncode}
    except asyncio.TimeoutError:
        return {"ok": False, "error": f"{manager} install timeout (120s)"}
    except Exception as e:
        return {"ok": False, "error": str(e)[:300]}


async def _npm_run(script: str, cwd: str = ".", manager: str = "auto") -> dict:
    """S763: npm/pnpm/yarn run <script>. Auto-detecta manager. Timeout 120s."""
    import os as _os
    try:
        if manager == "auto":
            manager = ("pnpm" if _os.path.exists(_os.path.join(cwd, "pnpm-lock.yaml"))
                       else "yarn" if _os.path.exists(_os.path.join(cwd, "yarn.lock"))
                       else "npm")
        proc = await asyncio.create_subprocess_exec(
            manager, "run", script, cwd=cwd,
            stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE,
        )
        out, err = await asyncio.wait_for(proc.communicate(), timeout=120)
        combined = (out + err).decode("utf-8", errors="replace")[:3000]
        return {"ok": proc.returncode == 0, "script": script, "manager": manager,
                "output": combined, "code": proc.returncode}
    except asyncio.TimeoutError:
        return {"ok": False, "error": f"{manager} run {script} timeout (120s)"}
    except Exception as e:
        return {"ok": False, "error": str(e)[:300]}


async def _pip_install(packages: str, upgrade: bool = False, user: bool = False) -> dict:
    """S763: pip install. packages: stringa spazio/virgola separata. Timeout 120s."""
    try:
        cmd = [sys.executable, "-m", "pip", "install", "-q"]
        if upgrade:
            cmd.append("--upgrade")
        if user:
            cmd.append("--user")
        pkgs = [p.strip() for p in packages.replace(",", " ").split() if p.strip()]
        cmd.extend(pkgs)
        proc = await asyncio.create_subprocess_exec(
            *cmd, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE,
        )
        out, err = await asyncio.wait_for(proc.communicate(), timeout=120)
        combined = (out + err).decode("utf-8", errors="replace")[:2000]
        return {"ok": proc.returncode == 0, "packages": pkgs, "output": combined, "code": proc.returncode}
    except asyncio.TimeoutError:
        return {"ok": False, "error": "pip install timeout (120s)"}
    except Exception as e:
        return {"ok": False, "error": str(e)[:300]}


async def _type_check(path: str = ".", checker: str = "auto", strict: bool = False) -> dict:
    """S763: tsc --noEmit o mypy. Auto-detecta da tsconfig.json/pyproject.toml. Timeout 60s."""
    import os as _os
    try:
        if checker == "auto":
            checker = ("tsc" if _os.path.exists(_os.path.join(path, "tsconfig.json")) else
                       "mypy" if (_os.path.exists(_os.path.join(path, "setup.py")) or
                                  _os.path.exists(_os.path.join(path, "pyproject.toml"))) else "tsc")
        if checker == "tsc":
            cmd = ["npx", "tsc", "--noEmit"] + (["--strict"] if strict else [])
        elif checker == "mypy":
            cmd = ["mypy", path, "--ignore-missing-imports"] + (["--strict"] if strict else [])
        else:
            return {"error": f"Checker non supportato: {checker}"}
        proc = await asyncio.create_subprocess_exec(
            *cmd, cwd=path,
            stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE,
        )
        out, err = await asyncio.wait_for(proc.communicate(), timeout=60)
        combined = (out + err).decode("utf-8", errors="replace")[:3000]
        ok = proc.returncode == 0
        return {"ok": ok, "checker": checker, "output": combined[:1000],
                "errors": combined if not ok else "", "code": proc.returncode}
    except asyncio.TimeoutError:
        return {"ok": False, "error": f"{checker} timeout (60s)"}
    except Exception as e:
        return {"ok": False, "error": str(e)[:300]}