"""
BREACH.AI v2 - AWS Escalator Module

AWS IAM privilege escalation.
"""

from breach.modules.base import (
    EscalationModule,
    ModuleConfig,
    ModuleInfo,
    register_module,
)
from breach.core.killchain import (
    BreachPhase,
    ModuleResult,
    EvidenceType,
    AccessLevel,
    Severity,
)


# AWS privilege escalation paths
AWS_PRIVESC_PATHS = [
    {
        "name": "iam:CreatePolicyVersion",
        "description": "Create new policy version with admin privileges",
        "requires": ["iam:CreatePolicyVersion"],
    },
    {
        "name": "iam:SetDefaultPolicyVersion",
        "description": "Set older admin policy as default",
        "requires": ["iam:SetDefaultPolicyVersion"],
    },
    {
        "name": "iam:AttachUserPolicy",
        "description": "Attach AdministratorAccess to user",
        "requires": ["iam:AttachUserPolicy"],
    },
    {
        "name": "iam:AttachRolePolicy",
        "description": "Attach admin policy to assumable role",
        "requires": ["iam:AttachRolePolicy"],
    },
    {
        "name": "iam:CreateAccessKey",
        "description": "Create access keys for privileged user",
        "requires": ["iam:CreateAccessKey"],
    },
    {
        "name": "lambda:UpdateFunctionCode",
        "description": "Inject code into Lambda with privileged role",
        "requires": ["lambda:UpdateFunctionCode"],
    },
    {
        "name": "ec2:RunInstances",
        "description": "Launch EC2 with privileged instance profile",
        "requires": ["ec2:RunInstances", "iam:PassRole"],
    },
    {
        "name": "ssm:SendCommand",
        "description": "Execute commands on privileged EC2 instances",
        "requires": ["ssm:SendCommand"],
    },
]


@register_module
class AWSEscalator(EscalationModule):
    """
    AWS Escalator - IAM privilege escalation.

    Techniques:
    - IAM policy manipulation
    - Role assumption chains
    - Lambda code injection
    - EC2 instance profile abuse
    - SSM command execution
    """

    info = ModuleInfo(
        name="aws_escalator",
        phase=BreachPhase.ESCALATION,
        description="AWS IAM privilege escalation",
        author="BREACH.AI",
        techniques=["T1098", "T1078.004"],  # Account Manipulation, Cloud Accounts
        platforms=["aws", "cloud"],
        requires_access=True,
        required_access_level=AccessLevel.CLOUD_USER,
        provides_access=True,
        max_access_level=AccessLevel.CLOUD_ADMIN,
    )

    async def check(self, config: ModuleConfig) -> bool:
        """Check if we have AWS credentials to escalate."""
        return bool(
            config.chain_data.get("aws_access_key") or
            config.chain_data.get("aws_credentials")
        )

    async def run(self, config: ModuleConfig) -> ModuleResult:
        self._start_execution()

        escalation_paths = []
        achieved_admin = False

        # Get current permissions
        current_perms = await self._enumerate_permissions(config)

        # Check each escalation path
        for path in AWS_PRIVESC_PATHS:
            if self._has_required_perms(current_perms, path["requires"]):
                result = await self._attempt_escalation(path, config)
                if result.get("success"):
                    escalation_paths.append({
                        "path": path["name"],
                        "description": path["description"],
                        "result": result,
                    })
                    if result.get("admin_achieved"):
                        achieved_admin = True
                        break

        # Determine access level
        access_gained = None
        if achieved_admin:
            access_gained = AccessLevel.CLOUD_ADMIN
        elif escalation_paths:
            access_gained = AccessLevel.CLOUD_USER  # Some escalation but not admin

        # Add evidence
        if escalation_paths:
            self._add_evidence(
                evidence_type=EvidenceType.API_RESPONSE,
                description="AWS privilege escalation successful",
                content={
                    "paths": escalation_paths,
                    "admin_achieved": achieved_admin,
                },
                proves="AWS account can be fully compromised",
                severity=Severity.CRITICAL,
            )

        return self._create_result(
            success=len(escalation_paths) > 0,
            action="aws_privilege_escalation",
            details=f"Found {len(escalation_paths)} escalation paths, admin: {achieved_admin}",
            access_gained=access_gained,
            enables_modules=["cloud_storage_raider", "secrets_extractor"],
        )

    async def _enumerate_permissions(self, config: ModuleConfig) -> list[str]:
        """Enumerate current IAM permissions."""
        # This would use boto3 to enumerate actual permissions
        # Simplified for structure
        return config.chain_data.get("aws_permissions", [])

    def _has_required_perms(self, current: list[str], required: list[str]) -> bool:
        """Check if current permissions include required ones."""
        return all(perm in current for perm in required)

    async def _attempt_escalation(self, path: dict, config: ModuleConfig) -> dict:
        """Attempt a specific escalation path."""
        # This would use boto3 to actually attempt escalation
        # Simplified for structure
        return {"success": False, "admin_achieved": False}
