#!/usr/bin/env python3
"""E1 orchestration — fetch source text, run Mistral metadata, submit to Graphiti test group_id."""
import json
import os
import requests
import subprocess
import time
from pathlib import Path
import psycopg2
from dotenv import load_dotenv

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

EXPERIMENTS = Path.home() / "aaronai" / "experiments"
SAMPLE_FILE = EXPERIMENTS / "cascade_reextract_sample.json"
RESULTS_FILE = EXPERIMENTS / "cascade_reextract_results.json"
PG_DSN = os.environ["PG_DSN"]
SIDECAR_URL = "http://localhost:8001"
TEST_GROUP_ID = "aaron_cascade_test"
MAX_DOC_CHARS = 12000  # Same cap as Tier 1 for parity

# Stage 2 metadata prompt — verbatim from stage-2-worker-spec.md
METADATA_PROMPT = """You are a metadata extraction system. Given a document, produce structural and content metadata in strict JSON format.

Do not summarize the content beyond the one-sentence summary field. Do not extract entities or relationships. Do not interpret meaning. Produce only the metadata schema below.

Output JSON only. No prose, no explanation, no markdown code fences.

Schema:
{
  "language": "<ISO 639-1 code>",
  "char_length": <integer>,
  "primary_format": "<prose|slides|code|structured|mixed>",
  "structural_signals": {
    "has_headings": <boolean>,
    "has_bullet_lists": <boolean>,
    "has_numbered_lists": <boolean>,
    "has_tables": <boolean>,
    "has_code_blocks": <boolean>,
    "has_dates": <boolean>
  },
  "content_signals": {
    "has_named_people": <boolean>,
    "has_institutional_language": <boolean>,
    "has_technical_terminology": <boolean>,
    "has_first_person": <boolean>,
    "has_quotations": <boolean>
  },
  "domain_class": "<technical|administrative|educational|personal|conversational>",
  "one_sentence_summary": "<one sentence describing what the document is about>"
}

Document:
"""


def get_pg():
    return psycopg2.connect(PG_DSN)


def fetch_source_text(source):
    """Reassemble the full document from pgvector chunks, mirroring tier1_migration.py logic."""
    conn = get_pg()
    cur = conn.cursor()
    cur.execute("""
        SELECT STRING_AGG(document, E'\n\n' ORDER BY id) AS full_doc
        FROM embeddings WHERE source = %s
    """, (source,))
    row = cur.fetchone()
    conn.close()
    if row is None or row[0] is None:
        return None
    return row[0]


def run_mistral_metadata(text):
    """Call local Mistral via Ollama for base-class metadata."""
    truncated = text[:MAX_DOC_CHARS]
    prompt = METADATA_PROMPT + truncated
    response = requests.post(
        "http://localhost:11434/api/generate",
        json={"model": "mistral:latest", "prompt": prompt, "stream": False, "format": "json"},
        timeout=180,
    )
    response.raise_for_status()
    raw = response.json()["response"]
    try:
        metadata = json.loads(raw)
        # Override char_length with python-computed value (per stage-2-worker-spec)
        metadata["char_length"] = len(truncated)
        return metadata
    except json.JSONDecodeError:
        return {"error": "JSON parse failed", "raw": raw[:500]}


def format_metadata_as_orientation(metadata):
    """Format the base-class metadata as a source_description for Graphiti, with orient-not-bound framing."""
    if "error" in metadata:
        return f"tier1_cascade_test (metadata generation failed: {metadata['error']})"
    summary = metadata.get("one_sentence_summary", "")
    domain = metadata.get("domain_class", "unknown")
    fmt = metadata.get("primary_format", "unknown")
    return (
        f"This is a {domain} document in {fmt} format. "
        f"Summary: {summary} "
        f"This metadata is provided to orient your extraction, not to constrain it. "
        f"Extract entities and relationships freely from the document text itself; "
        f"the metadata is descriptive context, not a checklist."
    )


def submit_episode(name, content, source_description):
    """Submit episode to Graphiti sidecar at the test group_id."""
    payload = {
        "episodes": [{
            "name": name,
            "content": content[:MAX_DOC_CHARS],
            "source_description": source_description,
            "timestamp": "2026-04-28T00:00:00",
        }],
        "group_id": TEST_GROUP_ID,
    }
    response = requests.post(f"{SIDECAR_URL}/episodes/bulk", json=payload, timeout=300)
    response.raise_for_status()
    return response.json()


def main():
    with open(SAMPLE_FILE) as f:
        sample = json.load(f)
    selected = sample["selected"]
    print(f"E1 cascade re-extraction starting — {len(selected)} episodes to test group_id={TEST_GROUP_ID}\n")

    results = []
    for i, ep in enumerate(selected, 1):
        name = ep["name"]
        bucket = ep["bucket"]
        print(f"[{i}/{len(selected)}] [{bucket}] {name}")
        record = {"name": name, "bucket": bucket, "tier1_entities": ep["entities"]}

        # Fetch text
        print(f"  Fetching source text...", end=" ", flush=True)
        text = fetch_source_text(name)
        if text is None:
            print("FAILED — no chunks in pgvector")
            record["error"] = "no source text"
            results.append(record)
            continue
        record["doc_chars"] = len(text)
        print(f"{len(text)} chars")

        # Mistral metadata
        print(f"  Generating Mistral metadata...", end=" ", flush=True)
        t0 = time.time()
        metadata = run_mistral_metadata(text)
        elapsed = time.time() - t0
        record["metadata"] = metadata
        record["metadata_elapsed_s"] = round(elapsed, 1)
        if "error" in metadata:
            print(f"FAILED in {elapsed:.1f}s")
        else:
            print(f"{elapsed:.1f}s — domain={metadata.get('domain_class')}, format={metadata.get('primary_format')}")

        # Submit to Graphiti
        source_desc = format_metadata_as_orientation(metadata)
        record["source_description"] = source_desc
        print(f"  Submitting to Graphiti test group...", end=" ", flush=True)
        t0 = time.time()
        try:
            result = submit_episode(name, text, source_desc)
            elapsed = time.time() - t0
            print(f"{elapsed:.1f}s — OK")
            record["submit_elapsed_s"] = round(elapsed, 1)
            record["submit_result"] = result
        except Exception as e:
            elapsed = time.time() - t0
            print(f"{elapsed:.1f}s — FAILED: {e}")
            record["submit_error"] = str(e)

        results.append(record)
        # Save intermediate state after each episode
        with open(RESULTS_FILE, "w") as f:
            json.dump({"results": results}, f, indent=2, default=str)
        print()

    print(f"\nDone. Results saved to {RESULTS_FILE}")


if __name__ == "__main__":
    main()