"""Tests for the tool manifest Pydantic models."""

from __future__ import annotations

import pytest
from pydantic import ValidationError

from app.tools.models import (
    ExecutableConfig,
    HealthCheckConfig,
    MountConfig,
    PortConfig,
    ResourceLimits,
    SecretRef,
    ToolManifest,
    TraefikConfig,
)

# ---------------------------------------------------------------------------
# Helpers
# ---------------------------------------------------------------------------

def _minimal_manifest(**overrides: object) -> ToolManifest:
    defaults: dict[str, object] = {
        "id": "test-tool",
        "name": "Test Tool",
        "image": "test:latest",
        "ports": [PortConfig(container_port=8080, primary=True)],
        "traefik": TraefikConfig(enabled=False),
    }
    defaults.update(overrides)
    return ToolManifest.model_validate(defaults)


# ---------------------------------------------------------------------------
# Valid construction
# ---------------------------------------------------------------------------

def test_valid_runfusion_shape() -> None:
    manifest = ToolManifest(
        id="runfusion",
        name="RunFusion",
        description="Executable Node.js environment.",
        image="node:22-slim",
        runtime_working_dir="/workspace",
        ports=[PortConfig(container_port=8080, name="http", primary=True)],
        workspace_mounts=[
            MountConfig(source_pattern="{project_repo}", target="/workspace")
        ],
        config_mounts=[
            MountConfig(
                source_pattern="{user_config}/runfusion", target="/home/node/.config"
            )
        ],
        env={"NODE_ENV": "development"},
        health_check=HealthCheckConfig(
            type="http", path="/", port=8080, start_period_seconds=10
        ),
        resource_limits=ResourceLimits(cpus=2.0, memory_mb=2048),
        executable=ExecutableConfig(node_version="22", package_manager="npm"),
        traefik=TraefikConfig(
            enabled=True, subdomain_prefix="runfusion", port=8080
        ),
    )
    assert manifest.id == "runfusion"
    assert manifest.ports[0].primary is True
    assert manifest.traefik is not None
    assert manifest.traefik.enabled is True


def test_valid_code_server_shape() -> None:
    manifest = ToolManifest(
        id="code-server",
        name="code-server",
        description="VS Code in the browser.",
        image="codercom/code-server:latest",
        runtime_working_dir="/workspace",
        ports=[PortConfig(container_port=8080, name="http", primary=True)],
        workspace_mounts=[
            MountConfig(source_pattern="{project_repo}", target="/workspace")
        ],
        config_mounts=[
            MountConfig(
                source_pattern="{user_config}/code-server",
                target="/home/coder/.config/code-server",
            )
        ],
        health_check=HealthCheckConfig(type="http", path="/healthz", port=8080),
        resource_limits=ResourceLimits(cpus=2.0, memory_mb=4096),
        traefik=TraefikConfig(enabled=True, subdomain_prefix="code", port=8080),
        secrets=[
            SecretRef(name="code-server-password", env_var="PASSWORD", required=False)
        ],
    )
    assert manifest.id == "code-server"
    assert manifest.secrets[0].env_var == "PASSWORD"


# ---------------------------------------------------------------------------
# Invalid id values
# ---------------------------------------------------------------------------

def test_invalid_id_uppercase() -> None:
    with pytest.raises(ValidationError) as exc_info:
        _minimal_manifest(id="RunFusion")
    assert "id" in str(exc_info.value)


def test_invalid_id_spaces() -> None:
    with pytest.raises(ValidationError) as exc_info:
        _minimal_manifest(id="run fusion")
    assert "id" in str(exc_info.value)


def test_invalid_id_empty_string() -> None:
    with pytest.raises(ValidationError) as exc_info:
        _minimal_manifest(id="")
    assert "id" in str(exc_info.value)


# ---------------------------------------------------------------------------
# Port validation
# ---------------------------------------------------------------------------

def test_invalid_container_port_zero() -> None:
    with pytest.raises(ValidationError) as exc_info:
        PortConfig(container_port=0)
    assert "container_port" in str(exc_info.value)


def test_invalid_container_port_too_high() -> None:
    with pytest.raises(ValidationError) as exc_info:
        PortConfig(container_port=70000)
    assert "container_port" in str(exc_info.value)


# ---------------------------------------------------------------------------
# Mount target validation
# ---------------------------------------------------------------------------

def test_mount_target_not_absolute() -> None:
    with pytest.raises(ValidationError) as exc_info:
        MountConfig(source_pattern="{project_repo}", target="workspace")
    assert "absolute" in str(exc_info.value).lower()


# ---------------------------------------------------------------------------
# HealthCheck validation
# ---------------------------------------------------------------------------

def test_health_check_http_missing_path() -> None:
    with pytest.raises(ValidationError) as exc_info:
        HealthCheckConfig(type="http")
    assert "path" in str(exc_info.value)


def test_health_check_command_missing_command() -> None:
    with pytest.raises(ValidationError) as exc_info:
        HealthCheckConfig(type="command")
    assert "command" in str(exc_info.value)


def test_health_check_tcp_allows_missing_path() -> None:
    hc = HealthCheckConfig(type="tcp")
    assert hc.type == "tcp"


# ---------------------------------------------------------------------------
# Traefik + primary port validation
# ---------------------------------------------------------------------------

def test_missing_primary_port_when_traefik_enabled() -> None:
    with pytest.raises(ValidationError) as exc_info:
        ToolManifest(
            id="bad-tool",
            name="Bad Tool",
            image="test:latest",
            ports=[PortConfig(container_port=8080, primary=False)],
            traefik=TraefikConfig(enabled=True),
        )
    assert "primary" in str(exc_info.value).lower()


def test_traefik_disabled_allows_no_primary_port() -> None:
    manifest = ToolManifest(
        id="no-route",
        name="No Route",
        image="test:latest",
        ports=[PortConfig(container_port=8080, primary=False)],
        traefik=TraefikConfig(enabled=False),
    )
    assert manifest.traefik is not None
    assert manifest.traefik.enabled is False


def test_no_traefik_allows_no_primary_port() -> None:
    manifest = ToolManifest(
        id="no-route",
        name="No Route",
        image="test:latest",
        ports=[PortConfig(container_port=8080, primary=False)],
    )
    assert manifest.traefik is None


# ---------------------------------------------------------------------------
# Resource limits validation
# ---------------------------------------------------------------------------

def test_resource_limits_cpus_too_low() -> None:
    with pytest.raises(ValidationError) as exc_info:
        ResourceLimits(cpus=0.001)
    assert "cpus" in str(exc_info.value)


def test_resource_limits_memory_mb_too_low() -> None:
    with pytest.raises(ValidationError) as exc_info:
        ResourceLimits(memory_mb=8)
    assert "memory_mb" in str(exc_info.value)


def test_resource_limits_memory_swap_negative_one_ok() -> None:
    rl = ResourceLimits(memory_swap_mb=-1)
    assert rl.memory_swap_mb == -1


# ---------------------------------------------------------------------------
# Serialization round-trip
# ---------------------------------------------------------------------------

def test_serialization_roundtrip() -> None:
    original = _minimal_manifest(
        id="roundtrip",
        name="Roundtrip Tool",
        ports=[PortConfig(container_port=3000, name="http", primary=True)],
        traefik=TraefikConfig(enabled=True, subdomain_prefix="rt"),
    )
    dumped = original.model_dump(mode="json")
    restored = ToolManifest.model_validate(dumped)
    assert restored.id == original.id
    assert restored.ports[0].container_port == original.ports[0].container_port
    assert restored.traefik is not None
    assert restored.traefik.subdomain_prefix == "rt"