"""Generate original synthetic lab text. Not a foundation-model corpus."""
from pathlib import Path
import json


def main():
    rows = []
    facts = [
        ("code", "A reliable program checks its inputs, handles errors, and returns a well-defined result."),
        ("code", "Python functions use indentation for blocks. A return statement supplies the result to the caller."),
        ("systems", "A database transaction groups changes. A rollback restores the state before an unsuccessful transaction."),
        ("systems", "A queue stores pending work. A bounded queue limits memory use when producers outpace consumers."),
        ("reasoning", "A hypothesis is a proposed explanation. Evidence can support it or reveal a contradiction."),
        ("math", "An even integer is divisible by two. The sum of two even integers is even."),
        ("tools", "A tool receipt records the observed result. A successful request is different from a verified task outcome."),
        ("privacy", "Personal memory should record its source and confidence. Records must support correction and deletion."),
        ("hindi", "यह एक छोटा प्रशिक्षण उदाहरण है। सही उत्तर देने से पहले उपलब्ध प्रमाण की जाँच करें।"),
        ("hinglish", "Code ko run karke output check karo. Agar test fail ho to error samjho aur phir repair karo."),
    ]
    for i, (domain, text) in enumerate(facts):
        rows.append({"id": f"original-{i}", "text": text, "domain": domain, "source": "nexora-original-synthetic-v1", "license": "owner-authored", "split": "train"})
    for i in range(80):
        rows.append({"id": f"function-{i}", "text": f"def offset_{i}(value):\n    \"\"\"Add the integer {i} to the input value.\"\"\"\n    return value + {i}\n\nThe function offset_{i} maps 3 to {i+3}.", "domain": "code", "source": "nexora-original-synthetic-v1", "license": "owner-authored", "split": "train"})
    for i, text in enumerate([
        "Validation examples are separate from training examples. Their loss estimates next-token prediction on this small artificial domain only.",
        "A software test compares observed behavior with an expected result. Failed assertions identify differences that require investigation.",
        "def multiply(left, right):\n    return left * right\n\nThe product of three and seven is twenty-one. Unicode round trips must preserve original input.",
    ]):
        rows.append({"id": f"validation-{i}", "text": text, "domain": "validation", "source": "nexora-original-synthetic-v1", "license": "owner-authored", "split": "validation"})
    path = Path("examples/corpus.jsonl")
    path.parent.mkdir(exist_ok=True)
    path.write_text("".join(json.dumps(r, ensure_ascii=False)+"\n" for r in rows), encoding="utf-8")


if __name__ == "__main__":
    main()