"""Tests for flow.core.config."""

from pathlib import Path

import pytest

from flow.core.config import AppConfig, load_config, load_manifest


def test_load_config_missing_path(tmp_path):
    cfg = load_config(tmp_path / "nonexistent")
    assert isinstance(cfg, AppConfig)
    assert cfg.dotfiles_url == ""
    assert cfg.container_registry == "registry.tomastm.com"


def test_load_config_from_yaml(tmp_path):
    (tmp_path / "config.yaml").write_text(
        "repository:\n"
        "  url: git@github.com:user/dots.git\n"
        "  branch: dev\n"
        "paths:\n"
        "  projects: ~/code\n"
        "defaults:\n"
        "  container-registry: my.registry.com\n"
        "  tmux-session: main\n"
    )
    cfg = load_config(tmp_path)
    assert cfg.dotfiles_url == "git@github.com:user/dots.git"
    assert cfg.dotfiles_branch == "dev"
    assert cfg.projects_dir == "~/code"
    assert cfg.container_registry == "my.registry.com"
    assert cfg.tmux_session == "main"


def test_load_config_parses_targets_shorthand(tmp_path):
    (tmp_path / "config.yaml").write_text(
        "targets:\n"
        "  personal@orb: personal.orb\n"
    )
    cfg = load_config(tmp_path)
    assert len(cfg.targets) == 1
    assert cfg.targets[0].namespace == "personal"
    assert cfg.targets[0].platform == "orb"
    assert cfg.targets[0].host == "personal.orb"


def test_load_config_parses_targets_dict(tmp_path):
    (tmp_path / "config.yaml").write_text(
        "targets:\n"
        "  work@ec2:\n"
        "    host: work.ec2.internal\n"
        "    identity: ~/.ssh/id_work\n"
    )
    cfg = load_config(tmp_path)
    assert len(cfg.targets) == 1
    assert cfg.targets[0].host == "work.ec2.internal"
    assert cfg.targets[0].identity == "~/.ssh/id_work"


def test_load_manifest_returns_dict(tmp_path):
    (tmp_path / "manifest.yaml").write_text(
        "packages:\n"
        "  - name: fd\n"
        "    type: pkg\n"
    )
    data = load_manifest(tmp_path)
    assert isinstance(data, dict)
    assert "packages" in data


def test_load_manifest_merges_files(tmp_path):
    (tmp_path / "01-packages.yaml").write_text("packages:\n  - name: fd\n    type: pkg\n")
    (tmp_path / "02-profiles.yaml").write_text("profiles:\n  work:\n    os: linux\n")
    data = load_manifest(tmp_path)
    assert "packages" in data
    assert "profiles" in data


def test_load_config_merges_local_and_overlay(tmp_path):
    local = tmp_path / "local"
    overlay = tmp_path / "overlay"
    local.mkdir()
    overlay.mkdir()
    (local / "config.yaml").write_text(
        "repository:\n"
        "  url: git@github.com:user/dots.git\n"
        "targets:\n"
        "  personal@orb: personal.orb\n"
    )
    (overlay / "config.yaml").write_text(
        "repository:\n"
        "  branch: dev\n"
        "defaults:\n"
        "  tmux-session: main\n"
    )

    cfg = load_config(local, overlay)
    assert cfg.dotfiles_url == "git@github.com:user/dots.git"
    assert cfg.dotfiles_branch == "dev"
    assert cfg.tmux_session == "main"
    assert cfg.targets[0].host == "personal.orb"


def test_load_config_parses_legacy_targets(tmp_path):
    (tmp_path / "01-targets.yaml").write_text(
        "targets:\n"
        "  personal: orb personal.orb ~/.ssh/id_personal\n"
    )
    (tmp_path / "02-targets.yaml").write_text(
        "targets:\n"
        "  - namespace: work\n"
        "    platform: ec2\n"
        "    host: work.ec2.internal\n"
        "    identity: ~/.ssh/id_work\n"
    )
    cfg = load_config(tmp_path)
    assert len(cfg.targets) == 2
    assert cfg.targets[0].platform == "orb"
    assert cfg.targets[0].identity == "~/.ssh/id_personal"
    assert cfg.targets[1].namespace == "work"


def test_load_manifest_merges_local_and_overlay(tmp_path):
    local = tmp_path / "local"
    overlay = tmp_path / "overlay"
    local.mkdir()
    overlay.mkdir()
    (local / "manifest.yaml").write_text("profiles:\n  local:\n    os: linux\n")
    (overlay / "packages.yaml").write_text("packages:\n  - name: fd\n    type: pkg\n")
    data = load_manifest(local, overlay)
    assert "profiles" in data
    assert "packages" in data