#!/usr/bin/env python3
"""gen_drift_value_truth.py — factory batch 10 truth battery (live oracle)."""

import json
import sys
from pathlib import Path

REPO = Path(__file__).resolve().parent.parent
sys.path.insert(0, str(REPO / "src"))
sys.path.insert(0, str(REPO / "src" / "rune"))

import drift_core as dc  # noqa: E402

NOW = "2026-10-08T00:30:00+00:00"


def main():
    entries = [
        # fresh, low everything
        {"wash_count": 0, "importance": 0.5, "text": "unproven entry", "rock_status": "washable"},
        # high proven, recent access
        {"wash_count": 25, "importance": 0.9, "text": "proven entry", "rock_status": "washable",
         "last_accessed": "2026-10-07T20:00:00+00:00"},
        # proven but stale (30+ days)
        {"wash_count": 30, "importance": 0.8, "text": "stale entry", "rock_status": "washable",
         "last_accessed": "2026-08-01T10:00:00+00:00"},
        # already rock
        {"wash_count": 40, "importance": 0.9, "text": "rocked", "rock_status": "rock"},
        # bad timestamp (degrade path)
        {"wash_count": 22, "importance": 0.7, "text": "bad ts", "rock_status": "washable",
         "last_accessed": "not-a-date"},
        # goal relevance hit
        {"wash_count": 21, "importance": 0.6, "text": "the curator gates memory writes",
         "rock_status": "washable", "last_accessed": "2026-10-06T00:00:00+00:00"},
    ]
    goals = ["curator memory writes", "gate the pipeline"]
    cases = []
    for i, e in enumerate(entries):
        cases.append({
            "fn": "value", "name": f"value_{i}", "input": {"entry": e},
            "expected": {"value": dc._py_compute_value(e, None, NOW)},
        })
        cases.append({
            "fn": "promo", "name": f"promo_{i}", "input": {"entry": e},
            "expected": {"eligible": dc._py_check_promotion_eligibility(e, NOW)[0],
                         "reason": dc._py_check_promotion_eligibility(e, NOW)[1]},
        })
    # goal-relevance path
    cases.append({
        "fn": "value", "name": "with_goals", "input": {"entry": entries[5], "goals": goals},
        "expected": {"value": dc._py_compute_value(entries[5], goals, NOW)},
    })

    out = {"oracle": "drift_core._py_* oracles", "generated": "2026-10-08",
           "frozen_now": NOW, "cases": cases}
    (REPO / "src/go/drift-core" / "truth_value.json").write_text(
        json.dumps(out, indent=1) + "\n")
    print(f"wrote {len(cases)} cases")


if __name__ == "__main__":
    main()