from __future__ import annotations

import json
from pathlib import Path

import yaml

from enroll import manifest


def _write_state(bundle: Path, state: dict) -> None:
    bundle.mkdir(parents=True, exist_ok=True)
    (bundle / "state.json").write_text(json.dumps(state, indent=2), encoding="utf-8")


def _sample_state() -> dict:
    return {
        "schema_version": 3,
        "host": {"hostname": "test", "os": "debian", "pkg_backend": "dpkg"},
        "inventory": {
            "packages": {"foo": {"section": "net"}, "curl": {"section": "net"}}
        },
        "roles": {
            "users": {
                "role_name": "users",
                "users": [
                    {
                        "name": "alice",
                        "uid": 1000,
                        "gid": 1000,
                        "gecos": "Alice Example",
                        "home": "/home/alice",
                        "shell": "/bin/bash",
                        "primary_group": "alice",
                        "supplementary_groups": ["docker"],
                    }
                ],
                "managed_dirs": [],
                "managed_files": [],
                "managed_links": [],
                "excluded": [],
                "notes": [],
            },
            "services": [
                {
                    "unit": "foo.service",
                    "role_name": "foo",
                    "packages": ["foo"],
                    "active_state": "active",
                    "unit_file_state": "enabled",
                    "managed_dirs": [
                        {
                            "path": "/etc/foo",
                            "owner": "root",
                            "group": "root",
                            "mode": "0755",
                        }
                    ],
                    "managed_files": [
                        {
                            "path": "/etc/foo/foo.conf",
                            "src_rel": "etc/foo.conf",
                            "owner": "root",
                            "group": "root",
                            "mode": "0644",
                        }
                    ],
                    "managed_links": [
                        {"path": "/etc/foo/enabled.conf", "target": "/etc/foo/foo.conf"}
                    ],
                    "excluded": [],
                    "notes": [],
                }
            ],
            "packages": [
                {
                    "package": "curl",
                    "role_name": "curl",
                    "section": "net",
                    "managed_dirs": [],
                    "managed_files": [],
                    "managed_links": [],
                    "excluded": [],
                    "notes": [],
                }
            ],
            "apt_config": {
                "role_name": "apt_config",
                "managed_dirs": [],
                "managed_files": [],
                "managed_links": [],
            },
            "dnf_config": {
                "role_name": "dnf_config",
                "managed_dirs": [],
                "managed_files": [],
                "managed_links": [],
            },
            "sysctl": {
                "role_name": "sysctl",
                "managed_dirs": [],
                "managed_files": [
                    {
                        "path": "/etc/sysctl.d/99-enroll.conf",
                        "src_rel": "sysctl/99-enroll.conf",
                        "owner": "root",
                        "group": "root",
                        "mode": "0644",
                    }
                ],
                "managed_links": [],
                "parameters": {"net.ipv4.ip_forward": "1"},
                "notes": [],
            },
            "firewall_runtime": {"role_name": "firewall_runtime", "packages": []},
            "etc_custom": {
                "role_name": "etc_custom",
                "managed_dirs": [],
                "managed_files": [],
                "managed_links": [],
            },
            "usr_local_custom": {
                "role_name": "usr_local_custom",
                "managed_dirs": [],
                "managed_files": [],
                "managed_links": [],
            },
            "extra_paths": {
                "role_name": "extra_paths",
                "managed_dirs": [],
                "managed_files": [],
                "managed_links": [],
            },
        },
    }


def _write_sample_artifacts(bundle: Path) -> None:
    artifact = bundle / "artifacts" / "foo" / "etc" / "foo.conf"
    artifact.parent.mkdir(parents=True, exist_ok=True)
    artifact.write_text("setting = true\n", encoding="utf-8")
    sysctl_artifact = bundle / "artifacts" / "sysctl" / "sysctl" / "99-enroll.conf"
    sysctl_artifact.parent.mkdir(parents=True, exist_ok=True)
    sysctl_artifact.write_text("net.ipv4.ip_forward = 1\n", encoding="utf-8")


def test_manifest_salt_writes_single_site_state_tree(tmp_path: Path):
    bundle = tmp_path / "bundle"
    out = tmp_path / "salt"
    _write_sample_artifacts(bundle)
    _write_state(bundle, _sample_state())

    manifest.manifest(str(bundle), str(out), target="salt")

    top = yaml.safe_load((out / "states" / "top.sls").read_text(encoding="utf-8"))
    assert top["base"]["*"] == ["roles.net", "roles.users", "roles.sysctl"]

    net_sls = (out / "states" / "roles" / "net" / "init.sls").read_text(
        encoding="utf-8"
    )
    assert "pkg.installed:" in net_sls
    assert '- name: "curl"' in net_sls
    assert '- name: "foo"' in net_sls
    assert '"/etc/foo/foo.conf":' in net_sls
    assert 'source: "salt://roles/net/files/etc/foo.conf"' in net_sls
    assert "file.symlink:" in net_sls
    assert "service.running:" in net_sls
    assert (out / "states" / "roles" / "net" / "files" / "etc" / "foo.conf").exists()

    users_sls = (out / "states" / "roles" / "users" / "init.sls").read_text(
        encoding="utf-8"
    )
    assert "group.present:" in users_sls
    assert "user.present:" in users_sls
    assert "Alice Example" in users_sls
    assert "optional_groups" not in users_sls
    assert "- remove_groups: false" in users_sls

    sysctl_sls = (out / "states" / "roles" / "sysctl" / "init.sls").read_text(
        encoding="utf-8"
    )
    assert "cmd.run:" in sysctl_sls
    assert "sysctl -e -p /etc/sysctl.d/99-enroll.conf || true" in sysctl_sls
    assert (out / "README.md").exists()
    assert (out / "config" / "master.d" / "enroll.conf").exists()


def test_manifest_salt_fqdn_mode_uses_pillar_and_accumulates_nodes(tmp_path: Path):
    out = tmp_path / "salt"

    def write_bundle(name: str, content: str) -> Path:
        bundle = tmp_path / name
        _write_sample_artifacts(bundle)
        (bundle / "artifacts" / "foo" / "etc" / "foo.conf").write_text(
            content, encoding="utf-8"
        )
        state = _sample_state()
        state["host"]["hostname"] = name
        _write_state(bundle, state)
        return bundle

    first = write_bundle("first", "first=true\n")
    second = write_bundle("second", "second=true\n")

    manifest.manifest(str(first), str(out), target="salt", fqdn="first.example")
    manifest.manifest(str(second), str(out), target="salt", fqdn="second.example")

    state_top = yaml.safe_load((out / "states" / "top.sls").read_text(encoding="utf-8"))
    assert state_top["base"]["first.example"] == [
        "roles.curl",
        "roles.foo",
        "roles.users",
        "roles.sysctl",
    ]
    assert state_top["base"]["second.example"] == [
        "roles.curl",
        "roles.foo",
        "roles.users",
        "roles.sysctl",
    ]

    pillar_top = yaml.safe_load(
        (out / "pillar" / "top.sls").read_text(encoding="utf-8")
    )
    assert set(pillar_top["base"]) == {"first.example", "second.example"}
    first_pillar_sls = pillar_top["base"]["first.example"][0]
    first_node = out / "pillar" / Path(*first_pillar_sls.split("."))
    first_data = yaml.safe_load(
        first_node.with_suffix(".sls").read_text(encoding="utf-8")
    )
    assert first_data["enroll"]["classes"] == [
        "roles.curl",
        "roles.foo",
        "roles.users",
        "roles.sysctl",
    ]
    assert first_data["enroll"]["roles"]["foo"]["packages"] == ["foo"]
    assert first_data["enroll"]["roles"]["foo"]["files"]["/etc/foo/foo.conf"][
        "source"
    ] == ("salt://roles/foo/files/nodes/first.example/etc/foo.conf")

    foo_sls = (out / "states" / "roles" / "foo" / "init.sls").read_text(
        encoding="utf-8"
    )
    assert "salt['pillar.get']('enroll:roles:foo'" in foo_sls
    assert "pkg.installed:" in foo_sls
    assert "file.managed:" in foo_sls
    assert (
        out
        / "states"
        / "roles"
        / "foo"
        / "files"
        / "nodes"
        / "first.example"
        / "etc"
        / "foo.conf"
    ).exists()
    assert (
        out
        / "states"
        / "roles"
        / "foo"
        / "files"
        / "nodes"
        / "second.example"
        / "etc"
        / "foo.conf"
    ).exists()


def test_manifest_salt_user_gecos_and_groups_are_salt_safe(tmp_path: Path):
    bundle = tmp_path / "bundle"
    out = tmp_path / "salt"
    state = _sample_state()
    state["roles"]["users"]["users"][0]["name"] = "node"
    state["roles"]["users"]["users"][0]["primary_group"] = "node"
    state["roles"]["users"]["users"][0]["gid"] = 1000
    state["roles"]["users"]["users"][0]["gecos"] = "Node,,,"
    _write_sample_artifacts(bundle)
    _write_state(bundle, state)

    manifest.manifest(str(bundle), str(out), target="salt")

    users_sls = (out / "states" / "roles" / "users" / "init.sls").read_text(
        encoding="utf-8"
    )
    assert '- fullname: "Node"' in users_sls
    assert "Node,,," not in users_sls
    assert "optional_groups" not in users_sls
    assert "- remove_groups: false" in users_sls


def test_manifest_salt_fqdn_user_pillar_gecos_and_groups_are_salt_safe(tmp_path: Path):
    bundle = tmp_path / "bundle"
    out = tmp_path / "salt"
    state = _sample_state()
    state["roles"]["users"]["users"][0]["gecos"] = "Node,,,"
    _write_sample_artifacts(bundle)
    _write_state(bundle, state)

    manifest.manifest(str(bundle), str(out), target="salt", fqdn="node.example")

    pillar_top = yaml.safe_load(
        (out / "pillar" / "top.sls").read_text(encoding="utf-8")
    )
    node_sls = pillar_top["base"]["node.example"][0]
    pillar_path = out / "pillar" / Path(*node_sls.split("."))
    data = yaml.safe_load(pillar_path.with_suffix(".sls").read_text(encoding="utf-8"))
    alice = data["enroll"]["roles"]["users"]["users"]["alice"]
    assert alice["fullname"] == "Node"
    assert "Node,,," not in pillar_path.with_suffix(".sls").read_text(encoding="utf-8")
    assert alice["remove_groups"] is False
    assert "optional_groups" not in pillar_path.with_suffix(".sls").read_text(
        encoding="utf-8"
    )

    users_sls = (out / "states" / "roles" / "users" / "init.sls").read_text(
        encoding="utf-8"
    )
    assert "optional_groups" not in users_sls
    assert "remove_groups" in users_sls


def test_cli_manifest_target_salt_is_forwarded(monkeypatch, tmp_path):
    import sys

    import enroll.cli as cli

    called = {}

    def fake_manifest(harvest_dir: str, out_dir: str, **kwargs):
        called["harvest"] = harvest_dir
        called["out"] = out_dir
        called["target"] = kwargs.get("target")

    monkeypatch.setattr(cli, "manifest", fake_manifest)
    monkeypatch.setattr(
        sys,
        "argv",
        [
            "enroll",
            "manifest",
            "--harvest",
            str(tmp_path / "bundle"),
            "--out",
            str(tmp_path / "salt"),
            "--target",
            "salt",
        ],
    )

    cli.main()
    assert called["harvest"] == str(tmp_path / "bundle")
    assert called["out"] == str(tmp_path / "salt")
    assert called["target"] == "salt"