import contextlib
import io
import tempfile
import unittest
from pathlib import Path

from ampg.cli import main
from ampg.config import load_config
from ampg.health import blocked_health_checks, health_plan


def _write_config(root: Path, protocol_block: str) -> Path:
    source = root / "site"
    source.mkdir()
    (source / "index.html").write_text("<h1>Hello</h1>", encoding="utf-8")
    config_path = root / "gateway.toml"
    config_path.write_text(
        f"""
[profiles.mobile-i2p]
protocols = ["i2p"]

[[site]]
id = "example"
domain = "example.test"

[site.source]
kind = "static-html"
path = "./site"
canonical_url = "https://example.test"

[site.outputs]
root = "./out"
plan_root = "./plan"

{protocol_block}
""",
        encoding="utf-8",
    )
    return config_path


def _mark_output(root: Path, protocol: str) -> None:
    output = root / f"out/{protocol}"
    output.mkdir(parents=True)
    (output / ".ampg-output").write_text("generated by AMPG\n", encoding="utf-8")


class HealthPlanTest(unittest.TestCase):
    def test_published_health_plan_reviews_placeholder_i2p_address(self):
        with tempfile.TemporaryDirectory() as tmp:
            root = Path(tmp)
            config = load_config(
                _write_config(
                    root,
                    """
[site.protocols.i2p]
enabled = true
renderer = "privacy-html"
daemon = "i2pd"
daemon_policy = "auto"
""",
                )
            )
            _mark_output(root, "i2p")

            checks = health_plan(config)

        self.assertEqual(1, len(checks))
        self.assertEqual([], blocked_health_checks(checks))
        self.assertEqual("review", checks[0].status)
        self.assertEqual("configure-address", checks[0].action)
        self.assertEqual("placeholder", checks[0].address_status)
        self.assertIn("127.0.0.1:4444", checks[0].command)

    def test_configured_i2p_health_plan_is_planned(self):
        with tempfile.TemporaryDirectory() as tmp:
            root = Path(tmp)
            config = load_config(
                _write_config(
                    root,
                    """
[site.protocols.i2p]
enabled = true
renderer = "privacy-html"
i2p_url = "site.i2p"
""",
                )
            )
            _mark_output(root, "i2p")

            checks = health_plan(config)

        self.assertEqual("planned", checks[0].status)
        self.assertEqual("configured", checks[0].address_status)
        self.assertEqual("http://site.i2p/", checks[0].url)

    def test_missing_output_blocks_health_plan(self):
        with tempfile.TemporaryDirectory() as tmp:
            config = load_config(
                _write_config(
                    Path(tmp),
                    """
[site.protocols.tor]
enabled = true
renderer = "privacy-html"
""",
                )
            )

            checks = health_plan(config)

        self.assertEqual(1, len(blocked_health_checks(checks)))
        self.assertEqual("build-output", checks[0].action)

    def test_preview_health_plan_uses_loopback_urls(self):
        with tempfile.TemporaryDirectory() as tmp:
            root = Path(tmp)
            config = load_config(
                _write_config(
                    root,
                    """
[site.protocols.tor]
enabled = true
renderer = "privacy-html"
""",
                )
            )
            _mark_output(root, "tor")

            checks = health_plan(config, mode="preview", base_port=19900)

        self.assertEqual(1, len(checks))
        self.assertEqual("planned", checks[0].status)
        self.assertEqual("preview", checks[0].address_status)
        self.assertEqual("http://127.0.0.1:19900/", checks[0].url)
        self.assertEqual("clearnet", checks[0].transport)

    def test_health_plan_cli_uses_profile_scope(self):
        with tempfile.TemporaryDirectory() as tmp:
            root = Path(tmp)
            config_path = _write_config(
                root,
                """
[site.protocols.clearnet]
enabled = true
renderer = "clearnet"

[site.protocols.i2p]
enabled = true
renderer = "privacy-html"
i2p_url = "site.i2p"
""",
            )
            _mark_output(root, "i2p")

            stdout = io.StringIO()
            with contextlib.redirect_stdout(stdout):
                status = main(
                    [
                        "--config",
                        str(config_path),
                        "health-plan",
                        "--profile",
                        "mobile-i2p",
                    ]
                )

            output = stdout.getvalue()

        self.assertEqual(0, status)
        self.assertIn("protocol=i2p", output)
        self.assertIn("planned=1", output)
        self.assertNotIn("protocol=clearnet", output)

    def test_health_plan_cli_blocks_missing_output(self):
        with tempfile.TemporaryDirectory() as tmp:
            config_path = _write_config(
                Path(tmp),
                """
[site.protocols.i2p]
enabled = true
renderer = "privacy-html"
""",
            )

            stdout = io.StringIO()
            with contextlib.redirect_stdout(stdout):
                status = main(["--config", str(config_path), "health-plan"])

            output = stdout.getvalue()

        self.assertEqual(1, status)
        self.assertIn("blocked=1", output)


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