import os
import json
import sqlite3
import subprocess
import hashlib
from pathlib import Path
from datetime import datetime
from dotenv import load_dotenv
from sentence_transformers import SentenceTransformer
import anthropic
from fastapi import FastAPI, Request, Response, Depends, HTTPException, BackgroundTasks
import psycopg2
import psycopg2.extras
from fastapi import UploadFile, File, Form
import tempfile
import os
try:
    from faster_whisper import WhisperModel
    HAS_WHISPER = True
except ImportError:
    HAS_WHISPER = False
from fastapi.responses import FileResponse, JSONResponse
import secrets
import hashlib
from fastapi.responses import FileResponse, JSONResponse
from fastapi.staticfiles import StaticFiles
from fastapi.middleware.cors import CORSMiddleware
import uvicorn
import asyncio
from fastapi.responses import StreamingResponse
from apscheduler.schedulers.background import BackgroundScheduler
from apscheduler.triggers.cron import CronTrigger

load_dotenv(Path.home() / "aaronai" / ".env")

MEMORY_PATH = Path.home() / "aaronai" / "memory.md"
DB_PATH = str(Path.home() / "aaronai" / "db")
CONVERSATIONS_DB = str(Path.home() / "aaronai" / "conversations.db")
SETTINGS_PATH = Path.home() / "aaronai" / "settings.json"
WATCHER_LOG = str(Path.home() / "aaronai" / "watcher.log")
WATCHER_STATE = str(Path.home() / "aaronai" / "watcher_state.json")
NEXTCLOUD_PATH = "/home/aaron/nextcloud/data/data/aaron/files"
INGEST_SCRIPT = str(Path.home() / "aaronai" / "scripts" / "ingest.py")
PYTHON = str(Path.home() / "aaronai" / "venv" / "bin" / "python3")

DEFAULT_SETTINGS = {
    "theme": "light",
    "font_size": "medium",
    "web_search": True,
    "show_sources": True,
    "dream_hour_utc": 8,
    "dream_minute_utc": 0,
    "dream_mode": "nrem",
    "ingest_hour_utc": 2,
    "ingest_minute_utc": 30,
    "share_time": True,
}

print("Loading Aaron AI...")
PG_DSN = os.getenv("PG_DSN")

def get_pg():
    return psycopg2.connect(PG_DSN)
WHISPER_PROMPT = (
    "Grasshopper, Rhino, PolyJet, SLA, FDM, DMLS, "
    "HVAMC, FWN3D, Mossygear, Nextcloud, Gitea, "
    "computational design, additive manufacturing, fabrication, "
    "Graphiti, FalkorDB, pgvector, BirdAI, Active Inference, "
    "dreamer, consolidator, Extended Mind, "
    "Aaron Nelson, SUNY New Paltz, University of Utah, MDD"
)
whisper_model = None
if HAS_WHISPER:
    try:
        whisper_model = WhisperModel("large-v3", device="cpu", compute_type="int8", cpu_threads=8)
        print("Whisper model loaded")
    except Exception as e:
        print(f"Whisper not available: {e}")
embedder = SentenceTransformer("all-MiniLM-L6-v2")
# ChromaDB removed — using pgvector
anthropic_client = anthropic.Anthropic(api_key=os.getenv("ANTHROPIC_API_KEY"))

SYSTEM_PROMPT = """You are the personal AI assistant of Aaron Nelson — computational
designer, fabrication researcher, program builder, and creative
practitioner based in the Hudson Valley.

Aaron's work sits at the intersection of computational geometry,
additive manufacturing, and physical making. He resolves complex
systems into physical reality — from Grasshopper definitions to
large-scale steel structures, from archival photographs to 3D-printed
architectural restorations, from product concepts to manufactured
goods. This throughline — computation resolving into physical form —
defines his practice across academic, consulting, and creative contexts.

He built the Hudson Valley Additive Manufacturing Center (HVAMC) from
nothing and has directed it since 2016, alongside the DDF academic
program at SUNY New Paltz. He has the skills of a founder — equipment
selection, policy creation, client development, grant writing,
curriculum design — operating within an academic structure. He
consults with IBM, Braskem, Selux and others through FWN3D. He runs
Mossygear as a product business. He makes large-scale fabricated art.

His communication style is direct, precise, and intolerant of padding
or overclaiming. He flags inaccuracies immediately and expects the
same standard from you. When helping him write, match his voice —
economical, specific, never performative. When answering questions,
cite sources and acknowledge uncertainty rather than filling gaps with
plausible-sounding content.

You have access to his complete document corpus, conversation history,
and a persistent memory file that carries his current context. Treat
the memory file as ground truth for his present situation. Use web
search automatically when current information is needed. Never
re-brief on context that's already in memory or documents.

When making factual claims about Aaron — his history, credentials, locations, dates, relationships, projects, or any specific event — you must ground the claim in a specific retrieved document or the memory file. Cite the source by name inline. If no source supports the claim, say so explicitly rather than filling the gap with plausible-sounding content. Do not confabulate. If you are inferring rather than citing, mark it as inference."""

# Auth configuration
import os
SESSION_PASSWORD = os.getenv("AARON_AI_PASSWORD", "changeme")
SESSIONS_DB = str(Path.home() / "aaronai" / "sessions.db")

def _init_sessions():
    conn = sqlite3.connect(SESSIONS_DB)
    conn.execute("CREATE TABLE IF NOT EXISTS sessions (token TEXT PRIMARY KEY, created_at TEXT)")
    conn.commit()
    conn.close()

_init_sessions()

def make_session_token() -> str:
    return secrets.token_urlsafe(32)

def hash_password(password: str) -> str:
    return hashlib.sha256(password.encode()).hexdigest()

def save_session(token: str):
    conn = sqlite3.connect(SESSIONS_DB)
    conn.execute("INSERT OR REPLACE INTO sessions VALUES (?, ?)", (token, datetime.now().isoformat()))
    conn.commit()
    conn.close()

def delete_session(token: str):
    conn = sqlite3.connect(SESSIONS_DB)
    conn.execute("DELETE FROM sessions WHERE token = ?", (token,))
    conn.commit()
    conn.close()

def session_exists(token: str) -> bool:
    conn = sqlite3.connect(SESSIONS_DB)
    row = conn.execute("SELECT 1 FROM sessions WHERE token = ?", (token,)).fetchone()
    conn.close()
    return row is not None

def get_session(request: Request) -> str | None:
    return request.cookies.get("aaronai_session")

def require_auth(request: Request):
    token = get_session(request)
    if not token or not session_exists(token):
        raise HTTPException(status_code=401, detail="Not authenticated")
    return token

def init_conversations_db():
    conn = sqlite3.connect(CONVERSATIONS_DB)
    c = conn.cursor()
    c.execute('''CREATE TABLE IF NOT EXISTS conversations (
        id TEXT PRIMARY KEY,
        title TEXT NOT NULL,
        created_at TEXT NOT NULL,
        updated_at TEXT NOT NULL,
        model TEXT DEFAULT 'claude-sonnet-4-6',
        message_count INTEGER DEFAULT 0
    )''')
    c.execute('''CREATE TABLE IF NOT EXISTS messages (
        id TEXT PRIMARY KEY,
        conversation_id TEXT NOT NULL,
        role TEXT NOT NULL,
        content TEXT NOT NULL,
        sources TEXT DEFAULT '[]',
        timestamp TEXT NOT NULL,
        FOREIGN KEY (conversation_id) REFERENCES conversations(id)
    )''')
    conn.commit()
    conn.close()

init_conversations_db()

def load_settings():
    if SETTINGS_PATH.exists():
        try:
            s = json.loads(SETTINGS_PATH.read_text())
            return {**DEFAULT_SETTINGS, **s}
        except:
            pass
    return DEFAULT_SETTINGS.copy()

def save_settings(settings):
    SETTINGS_PATH.write_text(json.dumps(settings, indent=2))

def load_memory():
    if MEMORY_PATH.exists():
        return MEMORY_PATH.read_text(encoding="utf-8")
    return ""

def save_memory(content):
    MEMORY_PATH.write_text(content, encoding="utf-8")

def add_to_memory(item):
    memory = load_memory()
    timestamp = datetime.now().strftime("%Y-%m-%d")
    note = f"\n- [{timestamp}] {item}"
    if "## Notes" not in memory:
        memory += "\n\n## Notes"
    memory += note
    save_memory(memory)

def remove_from_memory(item):
    memory = load_memory()
    lines = memory.split("\n")
    filtered = [l for l in lines if item.lower() not in l.lower()]
    save_memory("\n".join(filtered))
    return len(lines) - len(filtered)

def retrieve_context(query, n_results=8):
    """Pure semantic retrieval over pgvector. Top-N by cosine similarity, threshold 0.3.
    No CV pinning, no keyword routing — see architecture doc substrate-dependency section.
    Substrate-level workarounds (entity-keyed routing, hybrid retrieval) live at the
    Graphiti layer, not as wrapper logic above pgvector."""
    query_embedding = embedder.encode([query]).tolist()[0]
    context_pieces = []
    sources = []
    try:
        pg = get_pg()
        cur = pg.cursor()
        cur.execute("""
            SELECT document, source, 1 - (embedding <=> %s::vector) as similarity
            FROM embeddings
            ORDER BY embedding <=> %s::vector
            LIMIT %s
        """, (query_embedding, query_embedding, n_results))
        for doc, source, similarity in cur.fetchall():
            if similarity > 0.3:
                context_pieces.append(doc)
                sources.append(source or "unknown")
        pg.close()
    except Exception as e:
        print(f"pgvector retrieval error: {e}")
    return context_pieces, sources

def get_conversation_history(conversation_id, limit=20):
    conn = sqlite3.connect(CONVERSATIONS_DB)
    c = conn.cursor()
    c.execute('''SELECT role, content FROM messages
                 WHERE conversation_id = ?
                 ORDER BY timestamp DESC LIMIT ?''', (conversation_id, limit))
    rows = c.fetchall()
    conn.close()
    return [{"role": r[0], "content": r[1]} for r in reversed(rows)]

def save_message(conversation_id, role, content, sources=None):
    conn = sqlite3.connect(CONVERSATIONS_DB)
    c = conn.cursor()
    msg_id = hashlib.md5(f"{conversation_id}{role}{datetime.now().isoformat()}".encode()).hexdigest()
    timestamp = datetime.now().isoformat()
    c.execute('''INSERT INTO messages (id, conversation_id, role, content, sources, timestamp)
                 VALUES (?, ?, ?, ?, ?, ?)''',
              (msg_id, conversation_id, role, content,
               json.dumps(sources or []), timestamp))
    c.execute('''UPDATE conversations SET updated_at = ?, message_count = message_count + 1
                 WHERE id = ?''', (timestamp, conversation_id))
    conn.commit()
    conn.close()

def create_conversation(title="New conversation"):
    conn = sqlite3.connect(CONVERSATIONS_DB)
    c = conn.cursor()
    conv_id = hashlib.md5(f"{datetime.now().isoformat()}".encode()).hexdigest()[:16]
    now = datetime.now().isoformat()
    c.execute('''INSERT INTO conversations (id, title, created_at, updated_at)
                 VALUES (?, ?, ?, ?)''', (conv_id, title, now, now))
    conn.commit()
    conn.close()
    return conv_id

def chat(user_message, conversation_id, settings, client_time=None):
    memory = load_memory()
    context_pieces, sources = retrieve_context(user_message)
    history = get_conversation_history(conversation_id)

    context_parts = []
    if client_time:
        context_parts.append(f"Current time (user-supplied, not logged): {client_time}")
    if memory:
        context_parts.append(f"Aaron's persistent memory:\n\n{memory}")
    if context_pieces:
        context_str = "\n\n---\n\n".join(context_pieces)
        unique_sources = list(set(sources))
        context_parts.append(
            f"Relevant excerpts from Aaron's documents:\n\n{context_str}\n\nSources: {', '.join(unique_sources)}"
        )
    context_block = "\n\n====\n\n".join(context_parts) + "\n\n---\n\n" if context_parts else ""
    full_message = context_block + user_message

    messages = history + [{"role": "user", "content": full_message}]

    tools = [{"type": "web_search_20250305", "name": "web_search"}] if settings.get("web_search", True) else []

    while True:
        kwargs = {
            "model": "claude-sonnet-4-6",
            "max_tokens": 2048,
            "system": SYSTEM_PROMPT,
            "messages": messages
        }
        if tools:
            kwargs["tools"] = tools

        response = anthropic_client.messages.create(**kwargs)

        if response.stop_reason == "tool_use":
            messages.append({"role": "assistant", "content": response.content})
            tool_results = []
            for block in response.content:
                if block.type == "tool_use":
                    tool_results.append({
                        "type": "tool_result",
                        "tool_use_id": block.id,
                        "content": "Search completed"
                    })
            messages.append({"role": "user", "content": tool_results})
        else:
            assistant_message = ""
            for block in response.content:
                if hasattr(block, "text"):
                    assistant_message += block.text
            return assistant_message, list(set(sources))

from contextlib import asynccontextmanager

@asynccontextmanager
async def lifespan(app: FastAPI):
    reschedule_jobs()
    scheduler.start()
    print("Scheduler started")
    yield
    scheduler.shutdown()
    print("Scheduler stopped")

app = FastAPI(lifespan=lifespan)
app.add_middleware(CORSMiddleware, allow_origins=["*"], allow_methods=["*"], allow_headers=["*"])

@app.post("/auth/login")
async def login(request: Request, response: Response):
    data = await request.json()
    password = data.get("password", "")
    if hash_password(password) != hash_password(SESSION_PASSWORD):
        raise HTTPException(status_code=401, detail="Invalid password")
    token = make_session_token()
    save_session(token)
    response.set_cookie(
        key="aaronai_session",
        value=token,
        httponly=True,
        secure=True,
        samesite="lax",
        max_age=60 * 60 * 24 * 30
    )
    response.body = b'{"ok": true}'
    response.status_code = 200
    response.media_type = "application/json"
    return response

@app.post("/auth/logout")
async def logout(request: Request, response: Response):
    token = get_session(request)
    if token:
        delete_session(token)
    response.delete_cookie("aaronai_session")
    return JSONResponse({"ok": True})

@app.get("/auth/check")
async def check_auth(request: Request):
    token = get_session(request)
    if not token or token not in SESSIONS:
        return JSONResponse({"authenticated": False})
    return JSONResponse({"authenticated": True})

@app.get("/", response_class=FileResponse)
async def index():
    return FileResponse("/home/aaron/aaronai/static/index.html")

@app.get("/api/settings")
async def get_settings(auth: str = Depends(require_auth)):
    return JSONResponse(load_settings())

@app.post("/api/settings")
async def update_settings(request: Request, auth: str = Depends(require_auth)):
    data = await request.json()
    settings = load_settings()
    settings.update(data)
    save_settings(settings)
    # Reschedule if schedule settings changed
    schedule_keys = {"dream_hour_utc","dream_minute_utc","dream_mode","ingest_hour_utc","ingest_minute_utc"}
    if any(k in data for k in schedule_keys):
        reschedule_jobs()
    return JSONResponse(settings)

@app.get("/api/conversations")
async def list_conversations(auth: str = Depends(require_auth)):
    conn = sqlite3.connect(CONVERSATIONS_DB)
    c = conn.cursor()
    c.execute('''SELECT id, title, created_at, updated_at, message_count
                 FROM conversations ORDER BY updated_at DESC LIMIT 100''')
    rows = c.fetchall()
    conn.close()
    return JSONResponse([{
        "id": r[0], "title": r[1], "created_at": r[2],
        "updated_at": r[3], "message_count": r[4]
    } for r in rows])

@app.post("/api/conversations")
async def new_conversation(request: Request, auth: str = Depends(require_auth)):
    data = await request.json()
    title = data.get("title", "New conversation")
    conv_id = create_conversation(title)
    return JSONResponse({"id": conv_id, "title": title})

@app.get("/api/conversations/{conv_id}/messages")
async def get_messages(conv_id: str, auth: str = Depends(require_auth)):
    conn = sqlite3.connect(CONVERSATIONS_DB)
    c = conn.cursor()
    c.execute('''SELECT role, content, sources, timestamp FROM messages
                 WHERE conversation_id = ? ORDER BY timestamp ASC''', (conv_id,))
    rows = c.fetchall()
    conn.close()
    return JSONResponse([{
        "role": r[0], "content": r[1],
        "sources": json.loads(r[2]), "timestamp": r[3]
    } for r in rows])

@app.patch("/api/conversations/{conv_id}")
async def rename_conversation(conv_id: str, request: Request, auth: str = Depends(require_auth)):
    data = await request.json()
    title = data.get("title", "")
    if not title:
        return JSONResponse({"error": "Title required"}, status_code=400)
    conn = sqlite3.connect(CONVERSATIONS_DB)
    c = conn.cursor()
    c.execute("UPDATE conversations SET title = ? WHERE id = ?", (title, conv_id))
    conn.commit()
    conn.close()
    return JSONResponse({"id": conv_id, "title": title})

@app.delete("/api/conversations/{conv_id}")
async def delete_conversation(conv_id: str, auth: str = Depends(require_auth)):
    conn = sqlite3.connect(CONVERSATIONS_DB)
    c = conn.cursor()
    c.execute("DELETE FROM messages WHERE conversation_id = ?", (conv_id,))
    c.execute("DELETE FROM conversations WHERE id = ?", (conv_id,))
    conn.commit()
    conn.close()
    return JSONResponse({"deleted": conv_id})

@app.post("/api/chat")
async def chat_endpoint(request: Request, auth: str = Depends(require_auth)):
    data = await request.json()
    user_message = data.get("message", "").strip()
    conversation_id = data.get("conversation_id", "")
    client_time = data.get("client_time", None)
    settings = load_settings()

    if not user_message:
        return JSONResponse({"error": "Empty message"})

    if not conversation_id:
        conversation_id = create_conversation("New conversation")

    stripped = user_message.strip().lower()

    if stripped == "show memory":
        return JSONResponse({"response": load_memory(), "sources": [], "conversation_id": conversation_id})

    if stripped.startswith("remember:"):
        item = user_message[9:].strip()
        add_to_memory(item)
        save_message(conversation_id, "user", user_message)
        save_message(conversation_id, "assistant", f"Saved to memory: '{item}'")
        return JSONResponse({"response": f"Saved to memory: '{item}'", "sources": [], "conversation_id": conversation_id})

    if stripped.startswith("forget:"):
        item = user_message[7:].strip()
        removed = remove_from_memory(item)
        msg = f"Removed {removed} line(s) containing '{item}'" if removed else f"Nothing found containing '{item}'"
        save_message(conversation_id, "user", user_message)
        save_message(conversation_id, "assistant", msg)
        return JSONResponse({"response": msg, "sources": [], "conversation_id": conversation_id})

    save_message(conversation_id, "user", user_message)

    # Auto-title conversation from first message
    conn = sqlite3.connect(CONVERSATIONS_DB)
    c = conn.cursor()
    c.execute("SELECT message_count, title FROM conversations WHERE id = ?", (conversation_id,))
    row = c.fetchone()
    conn.close()
    if row and row[0] <= 1 and row[1] == "New conversation":
        auto_title = user_message[:60] + ("..." if len(user_message) > 60 else "")
        conn = sqlite3.connect(CONVERSATIONS_DB)
        c = conn.cursor()
        c.execute("UPDATE conversations SET title = ? WHERE id = ?", (auto_title, conversation_id))
        conn.commit()
        conn.close()

    response, sources = chat(user_message, conversation_id, settings, client_time=client_time)
    save_message(conversation_id, "assistant", response, sources if settings.get("show_sources") else [])

    return JSONResponse({
        "response": response,
        "sources": sources if settings.get("show_sources") else [],
        "conversation_id": conversation_id
    })

@app.get("/api/memory")
async def get_memory(auth: str = Depends(require_auth)):
    return JSONResponse({"content": load_memory()})

@app.post("/api/memory")
async def update_memory(request: Request, auth: str = Depends(require_auth)):
    data = await request.json()
    content = data.get("content", "")
    save_memory(content)
    return JSONResponse({"saved": True})

@app.get("/api/status")
async def get_status(auth: str = Depends(require_auth)):
    try:
        pg = get_pg()
        cur = pg.cursor()
        cur.execute("SELECT COUNT(*) FROM embeddings")
        chunk_count = cur.fetchone()[0]
        pg.close()
    except:
        chunk_count = 0

    # Watcher status
    watcher_running = False
    watcher_ingestion = {"status": "idle", "message": "", "file_count": 0}
    last_indexed = "Unknown"
    try:
        import time as _time, json as _json
        _sp = Path("/home/aaron/aaronai/watcher_status.json")
        if _sp.exists():
            _s = _json.loads(_sp.read_text())
            _age = _time.time() - _s.get("timestamp", 0)
            watcher_running = _s.get("running", False) and _age < 30
            watcher_ingestion = _s.get("ingestion", watcher_ingestion)
    except:
        pass

    try:
        log_path = Path(WATCHER_LOG)
        if log_path.exists():
            lines = log_path.read_text().strip().split("\n")
            for line in reversed(lines):
                if "Ingestion complete" in line:
                    last_indexed = line.split(" - ")[0].strip()
                    break
    except:
        pass

    # File count from watcher state
    file_count = 0
    try:
        state_path = Path(WATCHER_STATE)
        if state_path.exists():
            state = json.loads(state_path.read_text())
            file_count = len(state)
        else:
            # Count files in Nextcloud directly
            nc_path = Path(NEXTCLOUD_PATH)
            if nc_path.exists():
                file_count = sum(1 for f in nc_path.rglob("*") 
                    if f.is_file() and f.suffix.lower() in {'.pdf','.docx','.pptx','.txt','.md'})
    except:
        pass

    # Conversation count
    conn = sqlite3.connect(CONVERSATIONS_DB)
    c = conn.cursor()
    c.execute("SELECT COUNT(*) FROM conversations")
    conv_count = c.fetchone()[0]
    conn.close()

    return JSONResponse({
        "aaron_ai": "running",
        "watcher": "running" if watcher_running else "stopped",
        "watcher_ingestion": watcher_ingestion,
        "chunk_count": chunk_count,
        "file_count": file_count,
        "last_indexed": last_indexed,
        "conversation_count": conv_count,
        "model": "claude-sonnet-4-6",
        "nextcloud_path": NEXTCLOUD_PATH
    })

@app.post("/api/transcribe")
async def transcribe_audio(request: Request, audio: UploadFile = File(...), auth: str = Depends(require_auth)):
    if not whisper_model:
        raise HTTPException(status_code=503, detail="Whisper not available")
    try:
        suffix = ".webm"
        if audio.content_type and "mp4" in audio.content_type:
            suffix = ".mp4"
        elif audio.content_type and "ogg" in audio.content_type:
            suffix = ".ogg"
        with tempfile.NamedTemporaryFile(suffix=suffix, delete=False) as tmp:
            content = await audio.read()
            tmp.write(content)
            tmp_path = tmp.name
        segments, info = whisper_model.transcribe(
            tmp_path,
            language="en",
            vad_filter=True,
            initial_prompt=WHISPER_PROMPT
        )
        transcript = " ".join(s.text.strip() for s in segments)
        os.unlink(tmp_path)
        return JSONResponse({"text": transcript, "language": info.language})
    except Exception as e:
        if os.path.exists(tmp_path):
            os.unlink(tmp_path)
        return JSONResponse({"ok": False, "error": str(e), "error_type": "transcription_failed"}, status_code=500)

@app.get("/api/dreamer/status")
async def dreamer_status(auth: str = Depends(require_auth)):
    try:
        state_path = Path.home() / "aaronai" / "dreamer_state.json"
        if state_path.exists():
            state = json.loads(state_path.read_text())
        else:
            state = {}
        last_ts = state.get("last_dream_timestamp", 0)
        last_dt = datetime.fromtimestamp(last_ts).strftime("%Y-%m-%d %H:%M") if last_ts else "never"
        raw_mode = state.get("last_dream_mode", "none")
        display_mode = "full pipeline" if raw_mode == "pipeline" else raw_mode
        return JSONResponse({
            "last_dream": last_dt,
            "last_mode": display_mode,
            "last_file": state.get("last_dream_file", ""),
        })
    except Exception as e:
        return JSONResponse({"last_dream": "unknown", "last_mode": "none", "last_file": "", "error": str(e)})

@app.post("/api/dreamer/run")
async def run_dreamer(request: Request, auth: str = Depends(require_auth)):
    try:
        body = await request.json()
        mode = body.get("mode", "nrem")
        task = body.get("task", None)
        dream_script = str(Path.home() / "aaronai" / "scripts" / "dream.py")
        cmd = [PYTHON, dream_script, "--mode", mode]
        if task:
            cmd += ["--task", task]
        subprocess.Popen(cmd, cwd=str(Path.home() / "aaronai"))
        return JSONResponse({"started": True, "mode": mode})
    except Exception as e:
        return JSONResponse({"started": False, "error": str(e)})

def transcribe_and_save(tmp_path, timestamp, nextcloud_url, nextcloud_user, nextcloud_password):
    """Background task — transcribes audio and saves to Nextcloud after endpoint returns."""
    import requests as req_lib
    nc_auth = (nextcloud_user, nextcloud_password)
    try:
        segments, _ = whisper_model.transcribe(
            tmp_path, language="en", vad_filter=True, initial_prompt=WHISPER_PROMPT
        )
        transcript = " ".join(s.text.strip() for s in segments).strip()
        os.unlink(tmp_path)
        if not transcript:
            print(f"Async transcription empty for {timestamp} — nothing saved")
            return
        filename = f"{timestamp}-voice.md"
        content_md = f"# Capture — {timestamp}\n\n**type:** voice\n**modality:** audio\n**status:** unprocessed\n\n---\n\n{transcript}\n"
        captures_dir = f"{nextcloud_url}/remote.php/dav/files/{nextcloud_user}/Journal/Captures"
        req_lib.request("MKCOL", captures_dir, auth=nc_auth, timeout=10)
        url = f"{captures_dir}/{filename}"
        req_lib.put(url, data=content_md.encode("utf-8"), auth=nc_auth, timeout=30)
        print(f"Async transcription saved: {filename}")
        # Notify SSE clients that transcription is complete
        try:
            import requests as _req
            _req.post("http://localhost:8000/api/events/notify", json={
                "type": "capture_saved",
                "filename": filename,
                "timestamp": timestamp,
            }, timeout=3)
            _req.post("http://localhost:8000/api/captures/events/notify", json={
                "type": "capture_saved",
                "filename": filename,
                "timestamp": timestamp,
            }, timeout=3)
        except Exception:
            pass
    except Exception as e:
        if os.path.exists(tmp_path):
            os.unlink(tmp_path)
        print(f"Async transcription failed for {timestamp}: {e}")


@app.post("/api/capture")
async def capture_endpoint(
    background_tasks: BackgroundTasks,
    audio: UploadFile = File(None),
    image: UploadFile = File(None),
    project: str = Form(None),
):
    """Auth-free capture endpoint — handles voice, image, or image+voice."""
    import requests as req_lib
    import base64

    nextcloud_url = os.getenv("NEXTCLOUD_URL", "")
    nextcloud_user = os.getenv("NEXTCLOUD_USER", "aaron")
    nextcloud_password = os.getenv("NEXTCLOUD_PASSWORD", "")
    nc_auth = (nextcloud_user, nextcloud_password)
    timestamp = datetime.now().strftime("%Y-%m-%d-%H-%M")
    month_dir = datetime.now().strftime("%Y-%m")

    # ── Image + optional voice ───────────────────────────────────────────────
    if image is not None:
        tmp_audio_path = None
        try:
            # Read image bytes
            image_bytes = await image.read()
            image_content_type = image.content_type or "image/jpeg"
            # Determine extension
            ext_map = {"image/jpeg": "jpg", "image/png": "png", "image/webp": "webp", "image/heic": "jpg"}
            img_ext = ext_map.get(image_content_type, "jpg")
            img_filename = f"{timestamp}-image.{img_ext}"

            # Save raw image to Media/YYYY-MM/ via WebDAV
            media_dir = f"{nextcloud_url}/remote.php/dav/files/{nextcloud_user}/Journal/Media/{month_dir}"
            req_lib.request("MKCOL", f"{nextcloud_url}/remote.php/dav/files/{nextcloud_user}/Journal/Media", auth=nc_auth, timeout=10)
            req_lib.request("MKCOL", media_dir, auth=nc_auth, timeout=10)
            media_url = f"{media_dir}/{img_filename}"
            req_lib.put(media_url, data=image_bytes, auth=nc_auth,
                       headers={"Content-Type": image_content_type}, timeout=60)

            # Transcribe voice annotation if present
            voice_annotation = None
            if audio is not None and whisper_model:
                audio_bytes = await audio.read()
                suffix = ".webm"
                if audio.content_type and "mp4" in audio.content_type:
                    suffix = ".mp4"
                elif audio.content_type and "ogg" in audio.content_type:
                    suffix = ".ogg"
                with tempfile.NamedTemporaryFile(suffix=suffix, delete=False) as tmp:
                    tmp.write(audio_bytes)
                    tmp_audio_path = tmp.name
                segments, _ = whisper_model.transcribe(
                    tmp_audio_path, language="en", vad_filter=True, initial_prompt=WHISPER_PROMPT
                )
                voice_annotation = " ".join(s.text.strip() for s in segments).strip() or None
                os.unlink(tmp_audio_path)
                tmp_audio_path = None

            # Generate Claude vision description
            image_b64 = base64.standard_b64encode(image_bytes).decode("utf-8")
            annotation_line = f"Aaron said about this image: \"{voice_annotation}\"" if voice_annotation else ""
            vision_prompt = f"""You are generating a memory description for an AI corpus belonging to Aaron Nelson — computational designer, fabrication researcher, and visual artist working in the Hudson Valley.

Describe this image for long-term memory indexing.

PERCEPTUAL: Composition, materials, light, color, texture, scale, spatial relationships. Be specific enough that this image could be distinguished from visually similar images.

CONTENT: What is this? What domain does it belong to? What is it an instance of?

{annotation_line}

End your response with a single line in this exact format:
ENTITIES: [comma-separated list of key entities — people, objects, materials, places, projects, tools]

Keep the full description to 150-250 words. Do not speculate beyond what is visible or stated. Write as continuous prose followed by the ENTITIES line."""

            vision_response = anthropic_client.messages.create(
                model="claude-sonnet-4-6",
                max_tokens=800,
                messages=[{
                    "role": "user",
                    "content": [
                        {
                            "type": "image",
                            "source": {
                                "type": "base64",
                                "media_type": image_content_type,
                                "data": image_b64,
                            }
                        },
                        {"type": "text", "text": vision_prompt}
                    ]
                }]
            )
            description = vision_response.content[0].text.strip()

            # Build rich Graphiti-ready episode markdown
            capture_type = "image+voice" if voice_annotation else "image"
            modality = "visual+audio" if voice_annotation else "visual"
            media_path = f"Journal/Media/{month_dir}/{img_filename}"

            content_md = f"""# Capture — Image — {timestamp}

**type:** {capture_type}
**modality:** {modality}
**status:** unprocessed
**media:** {media_path}
{f"**project:** {project}" if project else ""}

---

**Visual description:**
{description}

**Voice annotation:**
{voice_annotation if voice_annotation else "none recorded"}

---
"""
            # Save description to Journal/Captures/ via WebDAV
            captures_dir = f"{nextcloud_url}/remote.php/dav/files/{nextcloud_user}/Journal/Captures"
            req_lib.request("MKCOL", captures_dir, auth=nc_auth, timeout=10)
            cap_filename = f"{timestamp}-image.md"
            cap_url = f"{captures_dir}/{cap_filename}"
            req_lib.put(cap_url, data=content_md.encode("utf-8"), auth=nc_auth, timeout=30)

            return JSONResponse({
                "ok": True,
                "filename": cap_filename,
                "media": media_path,
                "has_voice": voice_annotation is not None,
            })

        except Exception as e:
            if tmp_audio_path and os.path.exists(tmp_audio_path):
                os.unlink(tmp_audio_path)
            return JSONResponse({"ok": False, "error": str(e), "error_type": "transcription_failed"}, status_code=500)

    # ── Voice only ───────────────────────────────────────────────────────────
    elif audio is not None:
        if not whisper_model:
            raise HTTPException(status_code=503, detail="Whisper not available")
        try:
            suffix = ".webm"
            if audio.content_type and "mp4" in audio.content_type:
                suffix = ".mp4"
            elif audio.content_type and "ogg" in audio.content_type:
                suffix = ".ogg"
            with tempfile.NamedTemporaryFile(suffix=suffix, delete=False) as tmp:
                content_bytes = await audio.read()
                tmp.write(content_bytes)
                tmp_path = tmp.name
            background_tasks.add_task(
                transcribe_and_save,
                tmp_path=tmp_path,
                timestamp=timestamp,
                nextcloud_url=nextcloud_url,
                nextcloud_user=nextcloud_user,
                nextcloud_password=nextcloud_password,
            )
            return JSONResponse({"ok": True, "filename": f"{timestamp}-voice.md", "async": True})
        except Exception as e:
            return JSONResponse({"ok": False, "error": str(e), "error_type": "capture_failed"})

    else:
        raise HTTPException(status_code=400, detail="No audio or image provided")

@app.get("/api/captures")
async def list_captures():
    """Returns recent captures from Nextcloud Journal/Captures/ — auth-free"""
    try:
        import requests as req_lib
        nextcloud_url = os.getenv("NEXTCLOUD_URL", "")
        nextcloud_user = os.getenv("NEXTCLOUD_USER", "aaron")
        nextcloud_password = os.getenv("NEXTCLOUD_PASSWORD", "")
        captures_dir = f"{nextcloud_url}/remote.php/dav/files/{nextcloud_user}/Journal/Captures"
        auth = (nextcloud_user, nextcloud_password)

        propfind = req_lib.request("PROPFIND", captures_dir, auth=auth, timeout=10,
            headers={"Depth": "1"})

        if propfind.status_code == 404:
            return JSONResponse({"captures": []})

        import xml.etree.ElementTree as ET
        root = ET.fromstring(propfind.text)
        ns = {"d": "DAV:"}
        captures = []
        for resp in root.findall("d:response", ns):
            href = resp.findtext("d:href", namespaces=ns) or ""
            if href.endswith("/"):
                continue
            name = href.split("/")[-1]
            if not name.endswith(".md"):
                continue
            captures.append({"name": name.replace(".md", ""), "duration": ""})

        captures.sort(key=lambda x: x["name"], reverse=True)
        return JSONResponse({"captures": captures[:10]})
    except Exception as e:
        return JSONResponse({"captures": []})

@app.post("/api/reindex")
async def trigger_reindex(auth: str = Depends(require_auth)):
    try:
        subprocess.Popen([PYTHON, INGEST_SCRIPT, NEXTCLOUD_PATH])
        return JSONResponse({"started": True, "message": "Re-indexing started in background"})
    except Exception as e:
        return JSONResponse({"started": False, "error": str(e)})

@app.delete("/api/conversations")
async def clear_all_conversations(auth: str = Depends(require_auth)):
    conn = sqlite3.connect(CONVERSATIONS_DB)
    c = conn.cursor()
    c.execute("DELETE FROM messages")
    c.execute("DELETE FROM conversations")
    conn.commit()
    conn.close()
    return JSONResponse({"cleared": True})



# ─── Corpus Integrity Endpoints ─────────────────────────────────────────────

CORPUS_INTEGRITY_SCRIPT = str(Path.home() / "aaronai" / "scripts" / "corpus_integrity.py")
CORPUS_REPORT_PATH = Path.home() / "aaronai" / "corpus_integrity_report.json"
SUPPORTED_EXTS = {".pdf", ".docx", ".pptx", ".txt", ".md"}
MIGRATION_STATE_PATH = Path.home() / "aaronai" / "experiments" / "tier1_migration_state.json"


def get_corpus_status_data():
    fs_count = 0
    try:
        root = Path(NEXTCLOUD_PATH)
        for path in root.rglob("*"):
            if path.is_file() and path.suffix.lower() in SUPPORTED_EXTS:
                if path.name.startswith((".", "~$")): continue
                if "Admin/Backups" in str(path) or "Backups" in path.parts: continue
                if "Journal/Media" in str(path): continue
                fs_count += 1
    except Exception:
        pass

    pv_count = 0
    try:
        pg = get_pg()
        cur = pg.cursor()
        cur.execute("SELECT COUNT(DISTINCT source) FROM embeddings WHERE source IS NOT NULL")
        pv_count = cur.fetchone()[0]
        pg.close()
    except Exception:
        pass

    gr_sources = set()
    try:
        if MIGRATION_STATE_PATH.exists():
            state = json.loads(MIGRATION_STATE_PATH.read_text())
            for fp in state.get("ingested", []):
                gr_sources.add(Path(fp).name)
    except Exception:
        pass
    try:
        pg = get_pg()
        cur = pg.cursor()
        cur.execute("SELECT DISTINCT source FROM stage_3_queue WHERE completed_at IS NOT NULL")
        for row in cur.fetchall(): gr_sources.add(row[0])
        pg.close()
    except Exception:
        pass

    failures = []
    try:
        pg = get_pg()
        cur = pg.cursor()
        cur.execute("""
            SELECT source, filepath, error, retry_count, first_failed_at, last_failed_at
            FROM ingest_failures WHERE resolved = FALSE
            ORDER BY last_failed_at DESC LIMIT 50
        """)
        for row in cur.fetchall():
            failures.append({
                "source": row[0], "filepath": row[1], "error": row[2],
                "retry_count": row[3], "first_failed_at": str(row[4]),
                "last_failed_at": str(row[5]),
            })
        pg.close()
    except Exception:
        pass

    last_report = None
    try:
        if CORPUS_REPORT_PATH.exists():
            report = json.loads(CORPUS_REPORT_PATH.read_text())
            last_report = {
                "timestamp": report.get("timestamp"),
                "gaps": report.get("summary", {}).get("neither", 0),
                "auto_queued": len(report.get("auto_queued", [])),
            }
    except Exception:
        pass

    return {
        "filesystem": fs_count,
        "pgvector": pv_count,
        "graphiti": len(gr_sources),
        "failures": failures,
        "failure_count": len(failures),
        "last_reconciliation": last_report,
    }


@app.get("/api/corpus/status")
async def corpus_status(auth: str = Depends(require_auth)):
    try:
        return JSONResponse(get_corpus_status_data())
    except Exception as e:
        return JSONResponse({"error": str(e)}, status_code=500)


@app.post("/api/corpus/retry")
async def corpus_retry(request: Request, auth: str = Depends(require_auth)):
    try:
        body = await request.json()
        source = body.get("source", "")
        if not source:
            return JSONResponse({"error": "source required"}, status_code=400)
        pg = get_pg()
        cur = pg.cursor()
        cur.execute("SELECT filepath FROM ingest_failures WHERE source = %s", (source,))
        row = cur.fetchone()
        pg.close()
        if not row:
            return JSONResponse({"error": "source not found in failures"}, status_code=404)
        filepath = Path(row[0])
        if not filepath.exists():
            return JSONResponse({"error": f"file not found: {filepath}"}, status_code=404)
        suffix = filepath.suffix.lower()
        text = ""
        try:
            if suffix in {".txt", ".md"}:
                text = filepath.read_text(encoding="utf-8", errors="ignore")
            elif suffix == ".pdf":
                from pypdf import PdfReader
                text = "".join(p.extract_text() + "\n" for p in PdfReader(filepath).pages if p.extract_text())
            elif suffix == ".docx":
                from docx import Document as DocxDocument
                text = "\n".join(p.text for p in DocxDocument(filepath).paragraphs if p.text.strip())
            elif suffix == ".pptx":
                from pptx import Presentation
                prs = Presentation(filepath)
                text = "\n".join(shape.text for slide in prs.slides for shape in slide.shapes
                                if hasattr(shape, "text") and shape.text.strip())
        except Exception as e:
            return JSONResponse({"error": f"extraction failed: {e}"}, status_code=500)
        if not text.strip():
            return JSONResponse({"error": "file produces empty text — may be corrupt"}, status_code=422)
        pg = get_pg()
        cur = pg.cursor()
        cur.execute("""
            INSERT INTO stage_2_queue (source, full_text, char_length)
            VALUES (%s, %s, %s)
            ON CONFLICT (source) DO UPDATE SET
                full_text = EXCLUDED.full_text, char_length = EXCLUDED.char_length,
                enqueued_at = NOW(), completed_at = NULL, failed_at = NULL, attempts = 0
        """, (source, text[:50000], len(text)))
        cur.execute("""
            UPDATE ingest_failures SET retry_count = retry_count + 1, last_failed_at = NOW()
            WHERE source = %s
        """, (source,))
        pg.commit()
        pg.close()
        return JSONResponse({"queued": True, "source": source})
    except Exception as e:
        return JSONResponse({"error": str(e)}, status_code=500)


@app.post("/api/corpus/reconcile")
async def corpus_reconcile(request: Request, background_tasks: BackgroundTasks, auth: str = Depends(require_auth)):
    try:
        body = await request.json()
        fix = body.get("fix", True)
    except Exception:
        fix = True
    def run_reconcile():
        try:
            cmd = [PYTHON, CORPUS_INTEGRITY_SCRIPT]
            if fix:
                cmd.append("--fix")
            subprocess.run(cmd, cwd=str(Path.home() / "aaronai"), timeout=300)
        except Exception as e:
            print(f"Reconciliation failed: {e}")
    background_tasks.add_task(run_reconcile)
    return JSONResponse({"started": True, "fix": fix})

# ─── Scheduler ──────────────────────────────────────────────────────────────
scheduler = BackgroundScheduler()

def run_dream_job():
    """Runs nightly dreamer — full interdependent pipeline, no mode flag."""
    try:
        import subprocess
        dream_script = str(Path.home() / "aaronai" / "scripts" / "dream.py")
        result = subprocess.run(
            [PYTHON, dream_script],
            cwd=str(Path.home() / "aaronai"),
            capture_output=True, text=True, timeout=600
        )
        print(f"Dreamer completed: {result.stdout[-200:] if result.stdout else 'no output'}")
        if result.returncode != 0:
            print(f"Dreamer error: {result.stderr[-200:] if result.stderr else 'unknown'}")
    except Exception as e:
        print(f"Dreamer job failed: {e}")

def run_ingest_job():
    """Runs nightly conversation indexing."""
    try:
        import subprocess
        ingest_script = str(Path.home() / "aaronai" / "scripts" / "ingest_conversations.py")
        result = subprocess.run(
            [PYTHON, ingest_script],
            cwd=str(Path.home() / "aaronai"),
            capture_output=True, text=True, timeout=300
        )
        print(f"Ingest completed: {result.stdout[-200:] if result.stdout else 'no output'}")
    except Exception as e:
        print(f"Ingest job failed: {e}")

def reschedule_jobs():
    """Update scheduler from current settings."""
    settings = load_settings()
    # Remove existing jobs
    for job_id in ("dream_job", "ingest_job"):
        try:
            scheduler.remove_job(job_id)
        except:
            pass
    # Add dream job
    scheduler.add_job(
        run_dream_job,
        CronTrigger(hour=settings.get("dream_hour_utc", 8),
                   minute=settings.get("dream_minute_utc", 0),
                   timezone="UTC"),
        id="dream_job",
        max_instances=1,
        replace_existing=True
    )
    # Add ingest job
    scheduler.add_job(
        run_ingest_job,
        CronTrigger(hour=settings.get("ingest_hour_utc", 2),
                   minute=settings.get("ingest_minute_utc", 30),
                   timezone="UTC"),
        id="ingest_job",
        max_instances=1,
        replace_existing=True
    )
    print(f"Scheduled: dream at {settings.get('dream_hour_utc',8):02d}:{settings.get('dream_minute_utc',0):02d} UTC, ingest at {settings.get('ingest_hour_utc',2):02d}:{settings.get('ingest_minute_utc',30):02d} UTC")

# SSE client registry
sse_clients: list[asyncio.Queue] = []
capture_sse_clients: list[asyncio.Queue] = []

async def sse_generator(queue: asyncio.Queue):
    try:
        yield 'data: {"type": "connected"}\n\n'
        while True:
            try:
                event = await asyncio.wait_for(queue.get(), timeout=30.0)
                import json as _json
                yield 'data: ' + _json.dumps(event) + '\n\n'
            except asyncio.TimeoutError:
                yield 'data: {"type": "heartbeat"}\n\n'

    except asyncio.CancelledError:
        pass
    finally:
        if queue in sse_clients:
            sse_clients.remove(queue)

async def capture_sse_generator(queue: asyncio.Queue):
    try:
        yield 'data: {"type": "connected"}\n\n'
        while True:
            try:
                event = await asyncio.wait_for(queue.get(), timeout=30.0)
                import json as _json
                yield 'data: ' + _json.dumps(event) + '\n\n'
            except asyncio.TimeoutError:
                yield 'data: {"type": "heartbeat"}\n\n'
    except asyncio.CancelledError:
        pass
    finally:
        if queue in capture_sse_clients:
            capture_sse_clients.remove(queue)

@app.get("/api/captures/events")
async def capture_sse_endpoint(request: Request):
    """Public SSE endpoint for capture page — no auth required."""
    queue: asyncio.Queue = asyncio.Queue()
    capture_sse_clients.append(queue)
    return StreamingResponse(
        capture_sse_generator(queue),
        media_type="text/event-stream",
        headers={
            "Cache-Control": "no-cache",
            "X-Accel-Buffering": "no",
            "Connection": "keep-alive",
        }
    )

@app.post("/api/captures/events/notify")
async def notify_capture_clients(request: Request):
    """Internal endpoint — called when transcription completes."""
    client_host = request.client.host if request.client else ""
    if client_host not in ("127.0.0.1", "::1", "localhost"):
        raise HTTPException(status_code=403, detail="Internal only")
    data = await request.json()
    for queue in capture_sse_clients:
        await queue.put(data)
    return JSONResponse({"notified": len(capture_sse_clients)})

@app.get("/api/events")
async def sse_endpoint(request: Request, auth: str = Depends(require_auth)):
    queue: asyncio.Queue = asyncio.Queue()
    sse_clients.append(queue)
    return StreamingResponse(
        sse_generator(queue),
        media_type="text/event-stream",
        headers={
            "Cache-Control": "no-cache",
            "X-Accel-Buffering": "no",
            "Connection": "keep-alive",
        }
    )

@app.post("/api/events/notify")
async def notify_clients(request: Request):
    """Internal endpoint — called by dream.py when a dream is delivered"""
    # Only allow from localhost
    client_host = request.client.host if request.client else ""
    if client_host not in ("127.0.0.1", "::1", "localhost"):
        raise HTTPException(status_code=403, detail="Internal only")
    data = await request.json()
    for queue in sse_clients:
        await queue.put(data)
    return JSONResponse({"notified": len(sse_clients)})

if __name__ == "__main__":
    uvicorn.run(app, host="0.0.0.0", port=8000)
