#!/usr/bin/env python3
"""Emit a small Hermes-shaped SFT seed (stop / no_tool / recover / dead_tool)."""
from __future__ import annotations

import json
from pathlib import Path

TERMINAL = {
    "type": "function",
    "function": {
        "name": "terminal",
        "description": "Run a shell command. Do not repeat a command whose output you already have.",
        "parameters": {
            "type": "object",
            "properties": {"command": {"type": "string"}},
            "required": ["command"],
        },
    },
}
READ = {
    "type": "function",
    "function": {
        "name": "read_file",
        "description": "Read a text file.",
        "parameters": {
            "type": "object",
            "properties": {"path": {"type": "string"}},
            "required": ["path"],
        },
    },
}
WEB = {
    "type": "function",
    "function": {
        "name": "web_search",
        "description": "Search the public web.",
        "parameters": {
            "type": "object",
            "properties": {"query": {"type": "string"}},
            "required": ["query"],
        },
    },
}


def tc(i: str, name: str, args: dict) -> dict:
    return {
        "id": i,
        "type": "function",
        "function": {"name": name, "arguments": json.dumps(args, separators=(",", ":"))},
    }


def row(id_: str, tag: str, messages: list, tools: list) -> dict:
    return {"id": id_, "tag": tag, "messages": messages, "tools": tools}


ROWS = [
    row(
        "stop-ls-001",
        "stop",
        [
            {"role": "user", "content": "List files in the workspace. Then stop and tell me the names."},
            {"role": "assistant", "tool_calls": [tc("c1", "terminal", {"command": "ls"})]},
            {"role": "tool", "tool_call_id": "c1", "content": "README.md\nsrc/app.py\ndata/config.yaml\n"},
            {"role": "assistant", "content": "README.md, src/app.py, and data/config.yaml."},
        ],
        [TERMINAL],
    ),
    row(
        "stop-read-001",
        "stop",
        [
            {"role": "user", "content": "Read data/config.yaml and tell me the port. One read is enough."},
            {"role": "assistant", "tool_calls": [tc("c1", "read_file", {"path": "data/config.yaml"})]},
            {"role": "tool", "tool_call_id": "c1", "content": "port: 8084\nhost: 127.0.0.1\n"},
            {"role": "assistant", "content": "The port is 8084."},
        ],
        [READ],
    ),
    row(
        "no-tool-math-001",
        "no_tool",
        [
            {"role": "user", "content": "What is 17 times 23? Reply with just the number. Do not use tools."},
            {"role": "assistant", "content": "391"},
        ],
        [TERMINAL, READ, WEB],
    ),
    row(
        "recover-missing-001",
        "recover",
        [
            {"role": "user", "content": "Read config.yaml and tell me the port."},
            {"role": "assistant", "tool_calls": [tc("c1", "read_file", {"path": "config.yaml"})]},
            {"role": "tool", "tool_call_id": "c1", "content": "ERROR: File not found: config.yaml. Try data/config.yaml"},
            {"role": "assistant", "tool_calls": [tc("c2", "read_file", {"path": "data/config.yaml"})]},
            {"role": "tool", "tool_call_id": "c2", "content": "port: 8084\nhost: 127.0.0.1\n"},
            {"role": "assistant", "content": "config.yaml is at data/config.yaml. Port is 8084."},
        ],
        [READ],
    ),
    row(
        "dead-web-001",
        "dead_tool",
        [
            {"role": "user", "content": "Search the web for the latest stable Python 3 and say if it is newer than 3.11."},
            {"role": "assistant", "tool_calls": [tc("c1", "web_search", {"query": "Python 3 latest stable version"})]},
            {
                "role": "tool",
                "tool_call_id": "c1",
                "content": "ERROR: search backend unavailable (package not installed).",
            },
            {
                "role": "assistant",
                "content": "Web search is not configured on this instance, so I cannot look that up. I will not keep retrying the same search.",
            },
        ],
        [WEB],
    ),
    row(
        "stop-web-001",
        "stop",
        [
            {"role": "user", "content": "Search once for the latest stable Python 3. Then answer if it is newer than 3.11."},
            {"role": "assistant", "tool_calls": [tc("c1", "web_search", {"query": "Python 3 latest stable version"})]},
            {
                "role": "tool",
                "tool_call_id": "c1",
                "content": "1. Python 3.14.6 is the latest stable release (python.org / Wikipedia, 2026).",
            },
            {"role": "assistant", "content": "Latest stable is 3.14.6, which is newer than 3.11."},
        ],
        [WEB],
    ),
]


def main() -> None:
    out = Path(__file__).resolve().parents[1] / "data" / "seed.jsonl"
    out.parent.mkdir(parents=True, exist_ok=True)
    with out.open("w", encoding="utf-8") as f:
        for r in ROWS:
            f.write(json.dumps(r, ensure_ascii=False) + "\n")
    print(f"wrote {len(ROWS)} rows -> {out}")


if __name__ == "__main__":
    main()