import subprocess
import sys
import tempfile
import unittest
from pathlib import Path

ROOT = Path(__file__).resolve().parents[1]
SCRIPT = ROOT / "scripts" / "plan_progress.py"


def run_cli(*args, cwd=None):
    return subprocess.run(
        [sys.executable, str(SCRIPT), *args],
        capture_output=True,
        text=True,
        cwd=cwd,
    )


class PlanProgressCliTests(unittest.TestCase):
    def test_select_prefers_in_progress(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            root = Path(tmp_dir)
            plans_dir = root / "docs" / "plans"
            plans_dir.mkdir(parents=True)
            (plans_dir / "2026-01-01-old.md").write_text("old", encoding="utf-8")
            (plans_dir / "2026-01-02-new.md").write_text("new", encoding="utf-8")

            progress = root / "memory-bank" / "progress.md"
            progress.parent.mkdir(parents=True)
            progress.write_text(
                "[PLAN] docs/plans/2026-01-01-old.md | status=in-progress | date=2026-01-03\n",
                encoding="utf-8",
            )

            result = run_cli(
                "select",
                "-plans",
                "docs/plans",
                "-progress",
                "memory-bank/progress.md",
                cwd=root,
            )

            self.assertEqual(result.returncode, 0)
            self.assertEqual(result.stdout.strip(), "docs/plans/2026-01-01-old.md")

    def test_select_skips_done_and_blocked(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            root = Path(tmp_dir)
            plans_dir = root / "docs" / "plans"
            plans_dir.mkdir(parents=True)
            (plans_dir / "2026-01-01-a.md").write_text("a", encoding="utf-8")
            (plans_dir / "2026-01-02-b.md").write_text("b", encoding="utf-8")

            progress = root / "memory-bank" / "progress.md"
            progress.parent.mkdir(parents=True)
            progress.write_text(
                "\n".join(
                    [
                        "[PLAN] docs/plans/2026-01-02-b.md | status=done | date=2026-01-03",
                        "[PLAN] docs/plans/2026-01-01-a.md | status=blocked | date=2026-01-03",
                        "",
                    ]
                ),
                encoding="utf-8",
            )

            result = run_cli(
                "select",
                "-plans",
                "docs/plans",
                "-progress",
                "memory-bank/progress.md",
                cwd=root,
            )

            self.assertNotEqual(result.returncode, 0)
            self.assertIn("no pending plans", (result.stdout + result.stderr).lower())

    def test_record_creates_section(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            root = Path(tmp_dir)
            progress = root / "memory-bank" / "progress.md"

            result = run_cli(
                "record",
                "-plan",
                "docs/plans/2026-01-03-demo.md",
                "-status",
                "done",
                "-progress",
                "memory-bank/progress.md",
                "-note",
                "done",
                cwd=root,
            )

            self.assertEqual(result.returncode, 0)
            text = progress.read_text(encoding="utf-8")
            self.assertIn("## Plan 状态记录", text)
            self.assertIn("status=done", text)


if __name__ == "__main__":
    unittest.main()