#!/usr/bin/env python3
"""Diff old vs new sorter plans by source path -> target."""
import json
import sys

changed = 0
same = 0
examples = []
for n in (1, 2, 3):
    old = {p["source"]: p for p in json.load(open(f"/tmp/plan{n}.json"))}
    new = {p["source"]: p for p in json.load(open(f"/tmp/plan{n}b.json"))}
    for src, np in new.items():
        op = old.get(src)
        if not op:
            continue
        if op["target"] != np["target"] or op["kind"] != np["kind"]:
            changed += 1
            if len(examples) < 40:
                examples.append((n, op, np))
        else:
            same += 1
print(f"same: {same}  changed: {changed}")
for n, op, np in examples:
    print(f"\n[{n}] {op['name']}  (score {op['score']} -> {np['score']})")
    print(f"  old: {op['target']}")
    print(f"  new: {np['target']}")