"""Validation helpers for waf/profile - Auto-generated"""

from typing import Any, TypedDict, NotRequired, Literal

# Import common validators from central _helpers module
from hfortix_fortios._helpers import (
    validate_enable_disable,
    validate_integer_range,
    validate_string_length,
    validate_port_number,
    validate_ip_address,
    validate_ipv6_address,
    validate_mac_address,
)

# ============================================================================
# Required Fields Validation
# Auto-generated from schema
# ============================================================================

# ⚠️  IMPORTANT: FortiOS schemas have known issues with required field marking:

# Do NOT use this list for strict validation - test with the actual FortiOS API!

# Fields marked as required (after filtering false positives)
REQUIRED_FIELDS = [
]

# Fields with defaults (optional)
FIELDS_WITH_DEFAULTS = {
    "name": "",
    "external": "disable",
    "extended-log": "disable",
}

# ============================================================================
# Deprecated Fields
# Auto-generated from schema - warns users about deprecated fields
# ============================================================================

# Deprecated fields with migration guidance
DEPRECATED_FIELDS = {
}

# ============================================================================
# Field Metadata (Type Information & Descriptions)
# Auto-generated from schema - use for IDE autocomplete and documentation
# ============================================================================

# Field types mapping
FIELD_TYPES = {
    "name": "string",  # WAF Profile name.
    "external": "option",  # Disable/Enable external HTTP Inspection.
    "extended-log": "option",  # Enable/disable extended logging.
    "signature": "string",  # WAF signatures.
    "constraint": "string",  # WAF HTTP protocol restrictions.
    "method": "string",  # Method restriction.
    "address-list": "string",  # Address block and allow lists.
    "url-access": "string",  # URL access list.
    "comment": "var-string",  # Comment.
}

# Field descriptions (help text from FortiOS API)
FIELD_DESCRIPTIONS = {
    "name": "WAF Profile name.",
    "external": "Disable/Enable external HTTP Inspection.",
    "extended-log": "Enable/disable extended logging.",
    "signature": "WAF signatures.",
    "constraint": "WAF HTTP protocol restrictions.",
    "method": "Method restriction.",
    "address-list": "Address block and allow lists.",
    "url-access": "URL access list.",
    "comment": "Comment.",
}

# Field constraints (string lengths, integer ranges)
FIELD_CONSTRAINTS = {
    "name": {"type": "string", "max_length": 47},
}

# Nested schemas (for table/list fields with children)
NESTED_SCHEMAS = {
    "signature": {
        "main-class": {
            "type": "string",
            "help": "Main signature class.",
        },
        "disabled-sub-class": {
            "type": "string",
            "help": "Disabled signature subclasses.",
        },
        "disabled-signature": {
            "type": "string",
            "help": "Disabled signatures.",
        },
        "credit-card-detection-threshold": {
            "type": "integer",
            "help": "The minimum number of Credit cards to detect violation.",
            "default": 3,
            "min_value": 0,
            "max_value": 128,
        },
        "custom-signature": {
            "type": "string",
            "help": "Custom signature.",
        },
    },
    "constraint": {
        "header-length": {
            "type": "string",
            "help": "HTTP header length in request.",
        },
        "content-length": {
            "type": "string",
            "help": "HTTP content length in request.",
        },
        "param-length": {
            "type": "string",
            "help": "Maximum length of parameter in URL, HTTP POST request or HTTP body.",
        },
        "line-length": {
            "type": "string",
            "help": "HTTP line length in request.",
        },
        "url-param-length": {
            "type": "string",
            "help": "Maximum length of parameter in URL.",
        },
        "version": {
            "type": "string",
            "help": "Enable/disable HTTP version check.",
        },
        "method": {
            "type": "string",
            "help": "Enable/disable HTTP method check.",
        },
        "hostname": {
            "type": "string",
            "help": "Enable/disable hostname check.",
        },
        "malformed": {
            "type": "string",
            "help": "Enable/disable malformed HTTP request check.",
        },
        "max-cookie": {
            "type": "string",
            "help": "Maximum number of cookies in HTTP request.",
        },
        "max-header-line": {
            "type": "string",
            "help": "Maximum number of HTTP header line.",
        },
        "max-url-param": {
            "type": "string",
            "help": "Maximum number of parameters in URL.",
        },
        "max-range-segment": {
            "type": "string",
            "help": "Maximum number of range segments in HTTP range line.",
        },
        "exception": {
            "type": "string",
            "help": "HTTP constraint exception.",
        },
    },
    "method": {
        "status": {
            "type": "option",
            "help": "Status.",
            "default": "disable",
            "options": [{"help": "Enable setting.", "label": "Enable", "name": "enable"}, {"help": "Disable setting.", "label": "Disable", "name": "disable"}],
        },
        "log": {
            "type": "option",
            "help": "Enable/disable logging.",
            "default": "disable",
            "options": [{"help": "Enable setting.", "label": "Enable", "name": "enable"}, {"help": "Disable setting.", "label": "Disable", "name": "disable"}],
        },
        "severity": {
            "type": "option",
            "help": "Severity.",
            "default": "medium",
            "options": [{"help": "High severity", "label": "High", "name": "high"}, {"help": "medium severity", "label": "Medium", "name": "medium"}, {"help": "low severity", "label": "Low", "name": "low"}],
        },
        "default-allowed-methods": {
            "type": "option",
            "help": "Methods.",
            "default": "",
            "options": [{"help": "HTTP GET method.", "label": "Get", "name": "get"}, {"help": "HTTP POST method.", "label": "Post", "name": "post"}, {"help": "HTTP PUT method.", "label": "Put", "name": "put"}, {"help": "HTTP HEAD method.", "label": "Head", "name": "head"}, {"help": "HTTP CONNECT method.", "label": "Connect", "name": "connect"}, {"help": "HTTP TRACE method.", "label": "Trace", "name": "trace"}, {"help": "HTTP OPTIONS method.", "label": "Options", "name": "options"}, {"help": "HTTP DELETE method.", "label": "Delete", "name": "delete"}, {"help": "Other HTTP methods.", "label": "Others", "name": "others"}],
        },
        "method-policy": {
            "type": "string",
            "help": "HTTP method policy.",
        },
    },
    "address-list": {
        "status": {
            "type": "option",
            "help": "Status.",
            "default": "disable",
            "options": [{"help": "Enable setting.", "label": "Enable", "name": "enable"}, {"help": "Disable setting.", "label": "Disable", "name": "disable"}],
        },
        "blocked-log": {
            "type": "option",
            "help": "Enable/disable logging on blocked addresses.",
            "default": "disable",
            "options": [{"help": "Enable setting.", "label": "Enable", "name": "enable"}, {"help": "Disable setting.", "label": "Disable", "name": "disable"}],
        },
        "severity": {
            "type": "option",
            "help": "Severity.",
            "default": "medium",
            "options": [{"help": "High severity.", "label": "High", "name": "high"}, {"help": "Medium severity.", "label": "Medium", "name": "medium"}, {"help": "Low severity.", "label": "Low", "name": "low"}],
        },
        "trusted-address": {
            "type": "string",
            "help": "Trusted address.",
        },
        "blocked-address": {
            "type": "string",
            "help": "Blocked address.",
        },
    },
    "url-access": {
        "id": {
            "type": "integer",
            "help": "URL access ID.",
            "default": 0,
            "min_value": 0,
            "max_value": 4294967295,
        },
        "address": {
            "type": "string",
            "help": "Host address.",
            "required": True,
            "default": "",
            "max_length": 79,
        },
        "action": {
            "type": "option",
            "help": "Action.",
            "default": "permit",
            "options": [{"help": "Allow the HTTP request, also bypass further WAF scanning.", "label": "Bypass", "name": "bypass"}, {"help": "Allow the HTTP request, and continue further WAF scanning.", "label": "Permit", "name": "permit"}, {"help": "Block HTTP request.", "label": "Block", "name": "block"}],
        },
        "log": {
            "type": "option",
            "help": "Enable/disable logging.",
            "default": "disable",
            "options": [{"help": "Enable setting.", "label": "Enable", "name": "enable"}, {"help": "Disable setting.", "label": "Disable", "name": "disable"}],
        },
        "severity": {
            "type": "option",
            "help": "Severity.",
            "default": "medium",
            "options": [{"help": "High severity.", "label": "High", "name": "high"}, {"help": "Medium severity.", "label": "Medium", "name": "medium"}, {"help": "Low severity.", "label": "Low", "name": "low"}],
        },
        "access-pattern": {
            "type": "string",
            "help": "URL access pattern.",
        },
    },
}


# Valid enum values from API documentation
VALID_BODY_EXTERNAL = [
    "disable",  # Disable external inspection.
    "enable",  # Enable external inspection.
]
VALID_BODY_EXTENDED_LOG = [
    "enable",  # Enable setting.
    "disable",  # Disable setting.
]
VALID_QUERY_ACTION = ["default", "schema"]

# ============================================================================
# GET Validation
# ============================================================================


def validate_waf_profile_get(
    attr: str | None = None,
    filters: dict[str, Any] | None = None,
    **params: Any,
) -> tuple[bool, str | None]:
    """Validate GET request parameters for waf/profile."""
    # Validate query parameters if present
    if "action" in params:
        value = params.get("action")
        if value and value not in VALID_QUERY_ACTION:
            return (
                False,
                f"Invalid query parameter 'action'='{value}'. Must be one of: {', '.join(VALID_QUERY_ACTION)}",
            )

    return (True, None)


# ============================================================================
# POST Validation
# ============================================================================


def validate_required_fields(payload: dict) -> tuple[bool, str | None]:
    """Validate required fields for waf/profile."""
    # Check always-required fields
    missing_fields = []
    for field in REQUIRED_FIELDS:
        if field not in payload:
            missing_fields.append(field)
    
    if missing_fields:
        # Build enhanced error message
        error_parts = [f"Missing required field(s): {', '.join(missing_fields)}"]
        
        # Add descriptions for first few missing fields
        for field in missing_fields[:3]:
            desc = FIELD_DESCRIPTIONS.get(field)
            if desc:
                error_parts.append(f"  • {field}: {desc}")
        
        if len(missing_fields) > 3:
            error_parts.append(f"  ... and {len(missing_fields) - 3} more")
        
        return (False, "\n".join(error_parts))

    return (True, None)


def validate_waf_profile_post(
    payload: dict,
    **params: Any,
) -> tuple[bool, str | None]:
    """Validate POST request to create new waf/profile object."""
    # Step 1: Validate required fields
    is_valid, error = validate_required_fields(payload)
    if not is_valid:
        return (False, error)

    # Step 2: Validate enum values
    if "external" in payload:
        value = payload["external"]
        if value not in VALID_BODY_EXTERNAL:
            desc = FIELD_DESCRIPTIONS.get("external", "")
            error_msg = f"Invalid value for 'external': '{value}'"
            if desc:
                error_msg += f"\n  → Description: {desc}"
            error_msg += f"\n  → Valid options: {', '.join(repr(v) for v in VALID_BODY_EXTERNAL)}"
            error_msg += f"\n  → Example: external='{{ VALID_BODY_EXTERNAL[0] }}'"
            return (False, error_msg)
    if "extended-log" in payload:
        value = payload["extended-log"]
        if value not in VALID_BODY_EXTENDED_LOG:
            desc = FIELD_DESCRIPTIONS.get("extended-log", "")
            error_msg = f"Invalid value for 'extended-log': '{value}'"
            if desc:
                error_msg += f"\n  → Description: {desc}"
            error_msg += f"\n  → Valid options: {', '.join(repr(v) for v in VALID_BODY_EXTENDED_LOG)}"
            error_msg += f"\n  → Example: extended-log='{{ VALID_BODY_EXTENDED_LOG[0] }}'"
            return (False, error_msg)

    return (True, None)


# ============================================================================
# PUT Validation
# ============================================================================


def validate_waf_profile_put(
    payload: dict,
    **params: Any,
) -> tuple[bool, str | None]:
    """Validate PUT request to update waf/profile."""
    # Step 1: Validate enum values
    if "external" in payload:
        value = payload["external"]
        if value not in VALID_BODY_EXTERNAL:
            return (
                False,
                f"Invalid value for 'external'='{value}'. Must be one of: {', '.join(VALID_BODY_EXTERNAL)}",
            )
    if "extended-log" in payload:
        value = payload["extended-log"]
        if value not in VALID_BODY_EXTENDED_LOG:
            return (
                False,
                f"Invalid value for 'extended-log'='{value}'. Must be one of: {', '.join(VALID_BODY_EXTENDED_LOG)}",
            )

    return (True, None)


# ============================================================================
# Metadata Access Functions
# Imported from central module to avoid duplication across 1,062 files
# ============================================================================

from hfortix_fortios._helpers.metadata import (
    get_field_description as _get_field_description,
    get_field_type as _get_field_type,
    get_field_constraints as _get_field_constraints,
    get_field_default as _get_field_default,
    get_field_options as _get_field_options,
    get_nested_schema as _get_nested_schema,
    get_all_fields as _get_all_fields,
    get_field_metadata as _get_field_metadata,
    validate_field_value as _validate_field_value,
)

# Wrapper functions that bind module-specific data to central functions
def get_field_description(field_name: str) -> str | None:
    """Get description/help text for a field."""
    return _get_field_description(FIELD_DESCRIPTIONS, field_name)

def get_field_type(field_name: str) -> str | None:
    """Get the type of a field."""
    return _get_field_type(FIELD_TYPES, field_name)

def get_field_constraints(field_name: str) -> dict[str, Any] | None:
    """Get constraints for a field (min/max values, string length)."""
    return _get_field_constraints(FIELD_CONSTRAINTS, field_name)

def get_field_default(field_name: str) -> Any | None:
    """Get default value for a field."""
    return _get_field_default(FIELDS_WITH_DEFAULTS, field_name)

def get_field_options(field_name: str) -> list[str] | None:
    """Get valid enum options for a field."""
    return _get_field_options(globals(), field_name)

def get_nested_schema(field_name: str) -> dict[str, Any] | None:
    """Get schema for nested table/list fields."""
    return _get_nested_schema(NESTED_SCHEMAS, field_name)

def get_all_fields() -> list[str]:
    """Get list of all field names."""
    return _get_all_fields(FIELD_TYPES)

def get_field_metadata(field_name: str) -> dict[str, Any] | None:
    """Get complete metadata for a field (type, description, constraints, defaults, options)."""
    return _get_field_metadata(
        FIELD_TYPES, FIELD_DESCRIPTIONS, FIELD_CONSTRAINTS,
        FIELDS_WITH_DEFAULTS, REQUIRED_FIELDS, NESTED_SCHEMAS,
        globals(), field_name
    )

def validate_field_value(field_name: str, value: Any) -> tuple[bool, str | None]:
    """Validate a single field value against its constraints."""
    return _validate_field_value(
        FIELD_TYPES, FIELD_DESCRIPTIONS, FIELD_CONSTRAINTS,
        globals(), field_name, value
    )


# ============================================================================
# Schema Information
# Metadata about this endpoint schema
# ============================================================================

SCHEMA_INFO = {
    "endpoint": "waf/profile",
    "category": "cmdb",
    "api_path": "waf/profile",
    "mkey": "name",
    "mkey_type": "string",
    "help": "Configure Web application firewall configuration.",
    "total_fields": 9,
    "required_fields_count": 0,
    "fields_with_defaults_count": 3,
}


def get_schema_info() -> dict[str, Any]:
    """Get information about this endpoint schema."""
    return SCHEMA_INFO.copy()
