"""End-to-end smoke test for piece relocation (drag & drop via IPC)."""
import sys
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parents[2]))

from tools.automation.harness import Harness


def main():
    with Harness.launch(run_name="relocate") as h:
        h.load_mission("campaign_01", 0)
        h.place("Pawn", (0, 0), (0, 1))
        h.screenshot("01_placed")

        s = h.state()
        pid = s['pieces'][0]['id']
        assert s['pieces'][0]['start'] == [0, 0]
        assert s['pieces'][0]['end'] == [0, 1]

        # Relocate pawn to (1,0)→(1,1) — vector preserved
        r = h.relocate(pid, (1, 0), (1, 1))
        print(f"[relocate] {r}")
        assert r['relocated'], r
        h.screenshot("02_relocated")

        s = h.state()
        assert s['pieces'][0]['start'] == [1, 0]
        assert s['pieces'][0]['end'] == [1, 1]

        print("OK — relocation works")


if __name__ == "__main__":
    main()