# Copyright 2026 Guildhouse Dev
# SPDX-License-Identifier: Apache-2.0

"""Tests for the template system — manifest, policy, loader, registry."""

import os
import pytest
from pathlib import Path

from gsap_broker.templates.manifest import TemplateManifest
from gsap_broker.templates.policy import CompliancePolicy
from gsap_broker.templates.loader import TemplateLoader, LoadResult
from gsap_broker.templates.registry import AccordRegistry, PolicyRegistry

FIXTURE_DIR = Path(__file__).parent / "fixtures" / "sample-template"


# ── Manifest parsing ─────────────────────────────────────────────

def test_parse_full_manifest():
    """TEST 2: Full bastion.toml parsed correctly."""
    m = TemplateManifest.from_toml(FIXTURE_DIR / "bastion.toml")
    assert m.template.name == "test-baseline"
    assert m.template.version == "0.1.0"
    assert m.template.vertical == "testing"
    assert "test-framework" in m.template.compliance_frameworks
    assert m.compatibility.bastion_min == "0.3.0"
    assert "intune" in m.compatibility.connectors_required
    assert "org_name" in m.variables
    assert m.variables["org_name"].required is True
    assert m.variables["api_key"].sensitive is True


def test_parse_minimal_manifest(tmp_path):
    """TEST 3: Minimal bastion.toml with only required fields."""
    toml = tmp_path / "bastion.toml"
    toml.write_text('[template]\nname = "minimal"\nversion = "0.1.0"\n')
    m = TemplateManifest.from_toml(toml)
    assert m.template.name == "minimal"
    assert m.compatibility.bastion_min == "0.5.0"  # default
    assert m.contents.policies == "policies/"  # default


def test_validate_variables_missing_required():
    """TEST 4: Missing required variable produces error."""
    m = TemplateManifest.from_toml(FIXTURE_DIR / "bastion.toml")
    errors = m.validate_variables({})  # org_name missing
    assert any("org_name" in e for e in errors)


def test_validate_variables_all_provided():
    """TEST 5: All required variables provided — no errors."""
    m = TemplateManifest.from_toml(FIXTURE_DIR / "bastion.toml")
    errors = m.validate_variables({"org_name": "TestCorp"})
    assert errors == []


# ── Policy parsing ───────────────────────────────────────────────

def test_parse_policy():
    """TEST 6: Multi-condition policy parsed correctly."""
    p = CompliancePolicy.from_toml(FIXTURE_DIR / "policies" / "test-workstation.toml")
    assert p.name == "test-workstation-policy"
    assert p.framework == "test-framework"
    assert len(p.conditions) == 2
    assert p.conditions[0].id == "disk-encryption"
    assert p.conditions[0].severity == "critical"
    assert p.breach_response.critical == "suspend_access"
    assert p.schedule.interval_seconds == 300


def test_policy_platform_filtering():
    """TEST 7: conditions_for_platform filters correctly."""
    p = CompliancePolicy.from_toml(FIXTURE_DIR / "policies" / "test-workstation.toml")
    linux_conds = p.conditions_for_platform("linux")
    windows_conds = p.conditions_for_platform("windows")

    # disk-encryption has linux check, antivirus doesn't
    assert len(linux_conds) == 1
    assert linux_conds[0].id == "disk-encryption"

    # Both conditions have windows checks
    assert len(windows_conds) == 2


# ── Template loader ──────────────────────────────────────────────

def test_template_loader_full():
    """TEST 8: Full template load — policies and accords registered."""
    policies = PolicyRegistry()
    accords = AccordRegistry()
    loader = TemplateLoader(policies, accords)

    result = loader.load(FIXTURE_DIR, {"org_name": "TestCorp"})

    assert result.success
    assert "test-workstation-policy" in result.policies_loaded
    assert "standard-operations" in result.accords_loaded
    assert policies.get("test-workstation-policy") is not None
    assert accords.get("standard-operations") is not None


def test_variable_substitution_bastion_files_only():
    """TEST 9: Variable substitution applies to Bastion files, not Ansible files."""
    policies = PolicyRegistry()
    accords = AccordRegistry()
    loader = TemplateLoader(policies, accords)

    loader.load(FIXTURE_DIR, {"org_name": "AcmeCorp"})

    # Policy file should have substitution applied
    policy = policies.get("test-workstation-policy")
    assert policy is not None
    assert "AcmeCorp" in policy.description

    # Ansible playbook should be UNTOUCHED
    playbook_path = FIXTURE_DIR / "ansible" / "playbooks" / "test-playbook.yml"
    content = playbook_path.read_text()
    assert "${org_name}" in content  # NOT substituted


def test_variable_substitution_sensitive_not_logged(caplog):
    """TEST 10: Sensitive variable values not in log output."""
    import logging
    policies = PolicyRegistry()
    accords = AccordRegistry()
    loader = TemplateLoader(policies, accords)

    with caplog.at_level(logging.DEBUG):
        loader.load(FIXTURE_DIR, {"org_name": "TestCorp", "api_key": "SECRET_VALUE_123"})

    # The sensitive value should not appear in logs
    assert "SECRET_VALUE_123" not in caplog.text
    # Non-sensitive org_name value DOES appear (confirms substitution ran)
    assert "TestCorp" in caplog.text


def test_missing_bastion_toml(tmp_path):
    """Missing bastion.toml produces error, not crash."""
    policies = PolicyRegistry()
    accords = AccordRegistry()
    loader = TemplateLoader(policies, accords)

    result = loader.load(tmp_path, {})
    assert not result.success
    assert any("bastion.toml" in e for e in result.errors)


# ── Registries ───────────────────────────────────────────────────

def test_accord_registry_builtin_fallback():
    """TEST 11: AccordRegistry falls back to builtins for known accords."""
    reg = AccordRegistry()
    # shell-exec is a builtin
    assert reg.get("shell-exec") is not None
    assert reg.get("shell-exec")["capability_ceiling"] == "CAP_MUTATE"
    # unknown returns None
    assert reg.get("nonexistent") is None


def test_accord_registry_template_overrides_builtin():
    """Template-loaded accord overrides builtin with same name."""
    reg = AccordRegistry()
    reg.register("shell-exec", {"name": "shell-exec", "custom": True})
    assert reg.get("shell-exec")["custom"] is True


def test_policy_registry_by_framework():
    """PolicyRegistry.for_framework filters correctly."""
    reg = PolicyRegistry()
    p1 = CompliancePolicy(name="p1", framework="hipaa")
    p2 = CompliancePolicy(name="p2", framework="pci")
    p3 = CompliancePolicy(name="p3", framework="hipaa")
    reg.register(p1)
    reg.register(p2)
    reg.register(p3)

    hipaa = reg.for_framework("hipaa")
    assert len(hipaa) == 2
    assert all(p.framework == "hipaa" for p in hipaa)