#!/usr/bin/env python3
"""Analyze FT-sourced clusters in the live DB.
Run: docker exec -it news-mcp python3 /app/scripts/analyze_ft.py
"""
import sqlite3, json

DB = "./data/news.sqlite"
conn = sqlite3.connect(DB)

print("=== FT clusters in DB ===")
rows = conn.execute("""
    SELECT cluster_id, 
           json_array_length(payload, '$.articles'), 
           json_extract(payload, '$.headline'),
           json_extract(payload, '$.sources'),
           json_extract(payload, '$.timestamp')
    FROM clusters 
    WHERE payload LIKE '%ft.com%' 
    ORDER BY json_array_length(payload, '$.articles') DESC 
    LIMIT 30
""").fetchall()
print("FT clusters (top 30 by article count):")
for r in rows:
    src = (r[3] or "")[:30]
    ts = (r[4] or "")[:16]
    hl = (r[2] or "")[:55]
    print(f"  {r[0][:12]}  arts={r[1]}  {hl}  src={src}  ts={ts}")

total = conn.execute("SELECT count(*) FROM clusters WHERE payload LIKE '%ft.com%'").fetchone()[0]
singletons = conn.execute("SELECT count(*) FROM clusters WHERE payload LIKE '%ft.com%' AND json_array_length(payload, '$.articles') = 1").fetchone()[0]
print(f"\nTotal FT clusters: {total}, singletons: {singletons}, multi-article: {total - singletons}")

# Duplicate headlines
print("\n=== Potential duplicates (same headline in multiple clusters) ===")
dupe_rows = conn.execute("""
    SELECT json_extract(payload, '$.headline'), count(*) as cnt, group_concat(substr(cluster_id,1,12))
    FROM clusters 
    WHERE payload LIKE '%ft.com%'
    GROUP BY json_extract(payload, '$.headline')
    HAVING cnt > 1
    ORDER BY cnt DESC
    LIMIT 10
""").fetchall()
if dupe_rows:
    for r in dupe_rows:
        print(f'  "{(r[0] or "")[:60]}" appears in {r[1]} clusters: {r[2]}')
else:
    print("  No duplicates found")

# BreakingTheNews comparison
print("\n=== BreakingTheNews clusters (for comparison) ===")
bt_total = conn.execute("SELECT count(*) FROM clusters WHERE payload LIKE '%breakingthenews%'").fetchone()[0]
bt_singletons = conn.execute("SELECT count(*) FROM clusters WHERE payload LIKE '%breakingthenews%' AND json_array_length(payload, '$.articles') = 1").fetchone()[0]
print(f"Total BT clusters: {bt_total}, singletons: {bt_singletons}, multi-article: {bt_total - bt_singletons}")

# Cross-feed clusters
print("\n=== Cross-feed clusters (FT + BT merged) ===")
cross = conn.execute("SELECT count(*) FROM clusters WHERE payload LIKE '%ft.com%' AND payload LIKE '%breakingthenews%'").fetchone()[0]
print(f"Cross-feed clusters: {cross}")

# FoxNews clusters
print("\n=== FoxNews clusters ===")
fox_total = conn.execute("SELECT count(*) FROM clusters WHERE payload LIKE '%foxnews%'").fetchone()[0]
fox_singletons = conn.execute("SELECT count(*) FROM clusters WHERE payload LIKE '%foxnews%' AND json_array_length(payload, '$.articles') = 1").fetchone()[0]
print(f"Total FoxNews clusters: {fox_total}, singletons: {fox_singletons}, multi-article: {fox_total - fox_singletons}")

# All clusters summary
print("\n=== All clusters summary ===")
all_total = conn.execute("SELECT count(*) FROM clusters").fetchone()[0]
all_singletons = conn.execute("SELECT count(*) FROM clusters WHERE json_array_length(payload, '$.articles') = 1").fetchone()[0]
print(f"Total clusters: {all_total}, singletons: {all_singletons}, multi-article: {all_total - all_singletons}")

# Feed state
print("\n=== Feed state (active feeds) ===")
feeds = conn.execute("SELECT feed_key, last_hash, last_item_count, enabled, updated_at FROM feed_state WHERE last_hash != ''").fetchall()
for f in feeds:
    print(f"  {f[0][:55]}  items={f[2]}  enabled={f[3]}  updated={f[4][:19]}")

# Check for clusters covering same story from different feeds (by title similarity)
print("\n=== Clusters with similar headlines across feeds (sample) ===")
all_clusters = conn.execute("""
    SELECT cluster_id, json_extract(payload, '$.headline'), json_extract(payload, '$.sources')
    FROM clusters
    ORDER BY cluster_id
    LIMIT 200
""").fetchall()
# Quick check: any FT headline that contains words also in BT headlines
ft_headlines = [(cid, hl, src) for cid, hl, src in all_clusters if "ft.com" in (src or "")]
bt_headlines = [(cid, hl, src) for cid, hl, src in all_clusters if "breakingthenews" in (src or "")]
if ft_headlines and bt_headlines:
    from difflib import SequenceMatcher
    def norm(t):
        import re
        t = t.lower().strip()
        t = re.sub(r"[^a-z0-9\s]", " ", t)
        return re.sub(r"\s+", " ", t).strip()
    matches = []
    for fc, fh, fs in ft_headlines[:20]:
        for bc, bh, bs in bt_headlines[:20]:
            sim = SequenceMatcher(None, norm(fh or ""), norm(bh or "")).ratio()
            if sim >= 0.50:
                matches.append((sim, fh[:50], bh[:50], fc[:8], bc[:8]))
    matches.sort(reverse=True)
    for sim, fh, bh, fc, bc in matches[:8]:
        print(f"  sim={sim:.2f}  FT[{fc}]: {fh}")
        print(f"           BT[{bc}]: {bh}")
    if not matches:
        print("  No cross-feed headline matches >= 0.50 found")

conn.close()