"""领域模型(dataclass) ↔ Output DTO(Pydantic) 转换 + 集中脱敏。

规范 §6.1/§7.3：
- persistence 返回领域模型 dataclass，service 返回 Output DTO
- 脱敏集中在 mapper（调 crypto_service.mask_sensitive_fields）
- use_cases 层不调用 encrypt / decrypt

脱敏策略：
- dict 型敏感字段（``connection_config`` / ``auth_config`` / ``secret_refs`` /
  ``adapter_config``）调用 ``crypto_service.mask_sensitive_fields`` 递归脱敏
- 字符串型敏感字段（``access_token`` / ``refresh_token`` / ``secret``）
  非空时替换为 ``"***"``

审计字段（``created_by`` / ``updated_by``）由 service 在调用 mapper 前补充，
mapper 仅做字段映射。
"""

from __future__ import annotations

from yuxi.external_systems.core.models import (
    AdapterAsset,
    Alert,
    AuditLog,
    Environment,
    Execution,
    ExecutionTrace,
    ExternalSystem,
    ExternalTool,
    NotificationChannel,
    QuotaUsage,
    SecretRotationPolicy,
    SystemToken,
    ToolAccessRule,
    ToolTestCase,
    WebhookEvent,
    WebhookSubscription,
)
from yuxi.external_systems.framework.runtime import crypto_service
from yuxi.external_systems.use_cases.dto.access_rule import AccessRuleOutput
from yuxi.external_systems.use_cases.dto.alert import AlertOutput
from yuxi.external_systems.use_cases.dto.asset import AssetOutput
from yuxi.external_systems.use_cases.dto.audit_log import AuditLogOutput
from yuxi.external_systems.use_cases.dto.environment import EnvironmentOutput
from yuxi.external_systems.use_cases.dto.execution import (
    ExecutionDetailOutput,
    ExecutionOutput,
    ExecutionTraceOutput,
)
from yuxi.external_systems.use_cases.dto.notification_channel import (
    NotificationChannelOutput,
)
from yuxi.external_systems.use_cases.dto.quota import QuotaOutput
from yuxi.external_systems.use_cases.dto.secret_rotation import (
    SecretRotationPolicyOutput,
)
from yuxi.external_systems.use_cases.dto.system import (
    GovernanceConfigOutput,
    SystemOutput,
)
from yuxi.external_systems.use_cases.dto.test_case import TestCaseOutput
from yuxi.external_systems.use_cases.dto.token import TokenOutput
from yuxi.external_systems.use_cases.dto.tool import ToolOutput
from yuxi.external_systems.use_cases.dto.webhook import (
    WebhookEventOutput,
    WebhookSubscriptionOutput,
)

# 敏感字符串字段的统一脱敏占位符
_MASKED_VALUE = "***"


# ═══════════════════════════════════════════════════════════════════════════
# 含敏感字段的子域（mask: bool = True）
# ═══════════════════════════════════════════════════════════════════════════


def to_system_output(system: ExternalSystem, *, mask: bool = True) -> SystemOutput:
    """ExternalSystem dataclass → SystemOutput DTO（含脱敏）。

    dict 型敏感字段：``connection_config`` / ``auth_config`` / ``secret_refs``。
    """
    connection_config = system.connection_config
    auth_config = system.auth_config
    secret_refs = system.secret_refs
    if mask:
        connection_config = crypto_service.mask_sensitive_fields(connection_config)
        auth_config = crypto_service.mask_sensitive_fields(auth_config)
        secret_refs = crypto_service.mask_sensitive_fields(secret_refs)
    return SystemOutput(
        id=system.id,
        slug=system.slug,
        name=system.name,
        description=system.description,
        category=system.category,
        adapter_type=system.adapter_type,
        source_type=system.source_type,
        enabled=system.enabled,
        connection_config=connection_config,
        auth_type=system.auth_type,
        auth_config=auth_config,
        secret_refs=secret_refs,
        rate_limit=system.rate_limit,
        circuit_breaker=system.circuit_breaker,
        pool_config=system.pool_config,
        observability=system.observability,
        timeout=system.timeout,
        retry_policy=system.retry_policy,
        created_by=system.created_by,
        updated_by=system.updated_by,
        env_count=system.env_count,
    )


def to_tool_output(tool: ExternalTool, *, mask: bool = True) -> ToolOutput:
    """ExternalTool dataclass → ToolOutput DTO（含脱敏）。

    dict 型敏感字段：``adapter_config`` / ``auth_config``。
    """
    adapter_config = tool.adapter_config
    auth_config = tool.auth_config
    if mask:
        adapter_config = crypto_service.mask_sensitive_fields(adapter_config)
        auth_config = crypto_service.mask_sensitive_fields(auth_config)
    return ToolOutput(
        id=tool.id,
        slug=tool.slug,
        name=tool.name,
        description=tool.description,
        category=tool.category,
        adapter_type=tool.adapter_type,
        auth_type=tool.auth_type,
        adapter_config=adapter_config,
        auth_config=auth_config,
        timeout=tool.timeout,
        retry_policy=tool.retry_policy,
        enabled=tool.enabled,
        system_id=tool.system_id,
        created_by=tool.created_by,
        updated_by=tool.updated_by,
    )


def to_environment_output(env: Environment, *, mask: bool = True) -> EnvironmentOutput:
    """Environment dataclass → EnvironmentOutput DTO（含脱敏）。

    dict 型敏感字段：``connection_config`` / ``auth_config``。
    整合旧 ``environment_service._mask_secrets`` 的脱敏职责（非 decrypt 部分）。
    """
    connection_config = env.connection_config
    auth_config = env.auth_config
    if mask:
        connection_config = crypto_service.mask_sensitive_fields(connection_config)
        auth_config = crypto_service.mask_sensitive_fields(auth_config)
    return EnvironmentOutput(
        id=env.id,
        system_id=env.system_id,
        env_key=env.env_key,
        name=env.name,
        connection_config=connection_config,
        auth_config=auth_config,
        is_default=env.is_default,
        enabled=env.enabled,
    )


def to_token_output(token: SystemToken, *, mask: bool = True) -> TokenOutput:
    """SystemToken dataclass → TokenOutput DTO（含脱敏）。

    字符串型敏感字段：``access_token`` / ``refresh_token``，非空时替换为 ``"***"``。
    """
    access_token = token.access_token
    refresh_token = token.refresh_token
    if mask:
        access_token = _MASKED_VALUE if access_token else access_token
        refresh_token = _MASKED_VALUE if refresh_token else refresh_token
    return TokenOutput(
        id=token.id,
        system_id=token.system_id,
        env_key=token.env_key,
        token_type=token.token_type,
        access_token=access_token,
        refresh_token=refresh_token,
        expires_at=token.expires_at,
        extra=token.extra,
        is_invalidated=token.is_invalidated,
    )


def to_webhook_subscription_output(
    subscription: WebhookSubscription,
    *,
    mask: bool = True,
) -> WebhookSubscriptionOutput:
    """WebhookSubscription dataclass → WebhookSubscriptionOutput DTO（含脱敏）。

    字符串型敏感字段：``secret``，非空时替换为 ``"***"``。
    """
    secret = subscription.secret
    if mask:
        secret = _MASKED_VALUE if secret else secret
    return WebhookSubscriptionOutput(
        id=subscription.id,
        slug=subscription.slug,
        name=subscription.name,
        system_id=subscription.system_id,
        source_event_type=subscription.source_event_type,
        target_handler_type=subscription.target_handler_type,
        callback_path=subscription.callback_path,
        description=subscription.description,
        env_key=subscription.env_key,
        subscription_id=subscription.subscription_id,
        target_handler_id=subscription.target_handler_id,
        secret=secret,
        secret_algorithm=subscription.secret_algorithm,
        filter_rules=subscription.filter_rules,
        transform_rules=subscription.transform_rules,
        status=subscription.status,
        enabled=subscription.enabled,
        expires_at=subscription.expires_at,
        auto_renew=subscription.auto_renew,
        last_renewed_at=subscription.last_renewed_at,
        last_renew_error=subscription.last_renew_error,
        renewal_attempts=subscription.renewal_attempts,
        last_received_at=subscription.last_received_at,
        received_count=subscription.received_count,
        retention_days=subscription.retention_days,
        created_by=subscription.created_by,
        updated_by=subscription.updated_by,
    )


# ═══════════════════════════════════════════════════════════════════════════
# 无敏感字段的子域（直接字段映射）
# ═══════════════════════════════════════════════════════════════════════════


def to_webhook_event_output(event: WebhookEvent) -> WebhookEventOutput:
    """将 WebhookEvent dataclass 转换为 WebhookEventOutput DTO。"""
    return WebhookEventOutput(
        id=event.id,
        subscription_id=event.subscription_id,
        subscription_slug=event.subscription_slug,
        external_event_id=event.external_event_id,
        event_type=event.event_type,
        payload=event.payload,
        payload_hash=event.payload_hash,
        headers=event.headers,
        signature=event.signature,
        signature_verified=event.signature_verified,
        received_at=event.received_at,
        source_ip=event.source_ip,
        processing_status=event.processing_status,
        processing_attempts=event.processing_attempts,
        last_processed_at=event.last_processed_at,
        processing_error=event.processing_error,
        correlation_id=event.correlation_id,
        triggered_handler_type=event.triggered_handler_type,
        triggered_handler_id=event.triggered_handler_id,
        triggered_execution_id=event.triggered_execution_id,
    )


def to_execution_output(execution: Execution) -> ExecutionOutput:
    """Execution dataclass → ExecutionOutput DTO（无敏感字段，直接映射）。"""
    return ExecutionOutput(
        id=execution.id,
        execution_id=execution.execution_id,
        trace_id=execution.trace_id,
        system_id=execution.system_id,
        env_key=execution.env_key,
        tool_slug=execution.tool_slug,
        caller=execution.caller,
        caller_id=execution.caller_id,
        status=execution.status,
        started_at=execution.started_at,
        operation=execution.operation,
        request_summary=execution.request_summary,
        response_summary=execution.response_summary,
        error=execution.error,
        ended_at=execution.ended_at,
        duration_ms=execution.duration_ms,
        correlation_id=execution.correlation_id,
        retry_of=execution.retry_of,
        retry_count=execution.retry_count,
        tags=execution.tags,
    )


def to_execution_detail_output(
    execution: Execution,
    traces: list[ExecutionTrace],
) -> ExecutionDetailOutput:
    """Execution + traces → ExecutionDetailOutput DTO。

    注意：当前 ``ExecutionDetailOutput`` 未包含 traces 字段，``traces`` 参数
    预留用于后续扩展（service 层可单独调用 ``to_execution_trace_output``
    处理 traces）。``system_slug`` / ``system_name`` 由 service 层补充。
    """
    _ = traces  # 预留参数，当前 DTO 未包含 traces 字段
    return ExecutionDetailOutput(
        execution=to_execution_output(execution),
    )


def to_execution_trace_output(trace: ExecutionTrace) -> ExecutionTraceOutput:
    """ExecutionTrace dataclass → ExecutionTraceOutput DTO（无敏感字段，直接映射）。"""
    return ExecutionTraceOutput(
        id=trace.id,
        execution_id=trace.execution_id,
        trace_id=trace.trace_id,
        spans=trace.spans,
        total_duration_ms=trace.total_duration_ms,
    )


def to_audit_log_output(audit_log: AuditLog) -> AuditLogOutput:
    """AuditLog dataclass → AuditLogOutput DTO（无敏感字段，直接映射）。"""
    return AuditLogOutput(
        id=audit_log.id,
        system_id=audit_log.system_id,
        env_key=audit_log.env_key,
        event_type=audit_log.event_type,
        action_type=audit_log.action_type,
        resource=audit_log.resource,
        user=audit_log.user,
        detail=audit_log.detail,
        snapshot_before=audit_log.snapshot_before,
        snapshot_after=audit_log.snapshot_after,
        description=audit_log.description,
        created_at=audit_log.created_at,
    )


def to_asset_output(asset: AdapterAsset) -> AssetOutput:
    """AdapterAsset dataclass → AssetOutput DTO（不含二进制 content）。"""
    return AssetOutput(
        id=asset.id,
        adapter_type=asset.adapter_type,
        asset_type=asset.asset_type,
        name=asset.name,
        size=asset.size,
        checksum=asset.checksum,
        status=asset.status,
        status_message=asset.status_message,
        created_by=asset.created_by,
        updated_by=asset.updated_by,
        created_at=asset.created_at,
        updated_at=asset.updated_at,
    )


def to_quota_output(quota: QuotaUsage) -> QuotaOutput:
    """QuotaUsage dataclass → QuotaOutput DTO（无敏感字段，直接映射）。"""
    return QuotaOutput(
        id=quota.id,
        system_id=quota.system_id,
        quota_key=quota.quota_key,
        quota_name=quota.quota_name,
        quota_window=quota.quota_window,
        env_key=quota.env_key,
        window_start=quota.window_start,
        window_end=quota.window_end,
        limit_value=quota.limit_value,
        used_value=quota.used_value,
        remaining_value=quota.remaining_value,
        usage_ratio=quota.usage_ratio,
        is_warning=quota.is_warning,
        is_critical=quota.is_critical,
        unit=quota.unit,
        source=quota.source,
        source_header_name=quota.source_header_name,
        warning_threshold=quota.warning_threshold,
        critical_threshold=quota.critical_threshold,
        last_updated_at=quota.last_updated_at,
        last_response_at=quota.last_response_at,
    )


def to_alert_output(alert: Alert) -> AlertOutput:
    """Alert dataclass → AlertOutput DTO（无敏感字段，直接映射）。"""
    return AlertOutput(
        id=alert.id,
        system_id=alert.system_id,
        alert_type=alert.alert_type,
        title=alert.title,
        triggered_at=alert.triggered_at,
        env_key=alert.env_key,
        severity=alert.severity,
        status=alert.status,
        description=alert.description,
        detail=alert.detail,
        resource_type=alert.resource_type,
        resource_id=alert.resource_id,
        related_execution_id=alert.related_execution_id,
        related_trace_id=alert.related_trace_id,
        metric_snapshot=alert.metric_snapshot,
        dedup_key=alert.dedup_key,
        resolved_at=alert.resolved_at,
        acknowledged_by=alert.acknowledged_by,
        acknowledged_at=alert.acknowledged_at,
        resolution_note=alert.resolution_note,
        notification_status=alert.notification_status,
        notification_sent_at=alert.notification_sent_at,
        notification_channels=alert.notification_channels,
    )


def to_secret_rotation_policy_output(
    policy: SecretRotationPolicy,
) -> SecretRotationPolicyOutput:
    """SecretRotationPolicy dataclass → SecretRotationPolicyOutput DTO（无敏感字段，直接映射）。

    注意：``secret_ref`` 仅是引用 key（指向 ``ExternalSystem.secret_refs`` 中的
    具名 secret），非敏感值本身，不脱敏。
    """
    return SecretRotationPolicyOutput(
        id=policy.id,
        system_id=policy.system_id,
        secret_type=policy.secret_type,
        secret_name=policy.secret_name,
        secret_ref=policy.secret_ref,
        env_key=policy.env_key,
        rotation_mode=policy.rotation_mode,
        rotation_interval_days=policy.rotation_interval_days,
        notify_before_days=policy.notify_before_days,
        notify_channels=policy.notify_channels,
        last_rotated_at=policy.last_rotated_at,
        next_rotation_at=policy.next_rotation_at,
        last_rotation_at=policy.last_rotation_at,
        last_rotation_status=policy.last_rotation_status,
        last_rotation_error=policy.last_rotation_error,
        rotation_count=policy.rotation_count,
        max_rotation_retries=policy.max_rotation_retries,
        status=policy.status,
    )


def to_access_rule_output(rule: ToolAccessRule) -> AccessRuleOutput:
    """ToolAccessRule dataclass → AccessRuleOutput DTO（无敏感字段，直接映射）。"""
    return AccessRuleOutput(
        id=rule.id,
        principal_type=rule.principal_type,
        principal_id=rule.principal_id,
        created_by=rule.created_by,
        tool_slug=rule.tool_slug,
        system_id=rule.system_id,
        principal_name=rule.principal_name,
        env_key=rule.env_key,
        effect=rule.effect,
        priority=rule.priority,
        conditions=rule.conditions,
        expires_at=rule.expires_at,
        enabled=rule.enabled,
        description=rule.description,
        updated_by=rule.updated_by,
    )


def to_test_case_output(test_case: ToolTestCase) -> TestCaseOutput:
    """ToolTestCase dataclass → TestCaseOutput DTO（无敏感字段，直接映射）。"""
    return TestCaseOutput(
        id=test_case.id,
        tool_slug=test_case.tool_slug,
        name=test_case.name,
        request_fixture=test_case.request_fixture,
        created_by=test_case.created_by,
        description=test_case.description,
        env_key=test_case.env_key,
        expected_status=test_case.expected_status,
        assertions=test_case.assertions,
        timeout=test_case.timeout,
        enabled=test_case.enabled,
        schedule_cron=test_case.schedule_cron,
        alert_on_failure=test_case.alert_on_failure,
        alert_threshold=test_case.alert_threshold,
        last_run_at=test_case.last_run_at,
        last_run_status=test_case.last_run_status,
        last_run_duration_ms=test_case.last_run_duration_ms,
        last_run_response=test_case.last_run_response,
        last_run_error=test_case.last_run_error,
        last_run_assertions_result=test_case.last_run_assertions_result,
        consecutive_failures=test_case.consecutive_failures,
        updated_by=test_case.updated_by,
    )


def to_notification_channel_output(
    channel: NotificationChannel,
    *,
    mask: bool = True,
) -> NotificationChannelOutput:
    """NotificationChannel dataclass → NotificationChannelOutput DTO（含脱敏）。

    dict 型敏感字段：``config``（可能含 webhook URL、SMTP 密码等）。
    """
    config = channel.config
    if mask:
        config = crypto_service.mask_sensitive_fields(config)
    return NotificationChannelOutput(
        id=channel.id,
        channel_type=channel.channel_type,
        name=channel.name,
        config=config,
        enabled=channel.enabled,
        description=channel.description,
        created_by=channel.created_by,
        updated_by=channel.updated_by,
        created_at=channel.created_at,
        updated_at=channel.updated_at,
    )


def to_secret_refs_governance_output(
    system: ExternalSystem,
    *,
    mask: bool = True,
) -> GovernanceConfigOutput:
    """ExternalSystem.secret_refs → GovernanceConfigOutput DTO（含脱敏）。

    dict 型敏感字段：``secret_refs``，调用 ``crypto_service.mask_sensitive_fields``
    递归脱敏。整合旧 ``system_service.get_secret_refs`` / ``update_secret_refs``
    的脱敏职责，使 service 层不再直接调用 crypto_service。
    """
    secret_refs = system.secret_refs
    if mask:
        secret_refs = crypto_service.mask_sensitive_fields(secret_refs)
    return GovernanceConfigOutput(system_id=system.id, config=secret_refs)