transform

type BaseTransform struct {
	// contains filtered or unexported fields
}

type ConsistencyTransform struct {
	// contains filtered or unexported fields
}

type RequestUnionConstraint interface {
	*anthropic.MessageNewParams | *anthropic.BetaMessageNewParams |
		*openai.ChatCompletionNewParams | *responses.ResponseNewParams |
		*protocol.GoogleRequest
}

type Transform interface {
	// Name returns the unique identifier for this transform
	Name() string

	// Apply applies the transformation to the context
	// Returns an error if the transformation fails
	Apply(ctx *TransformContext) error
}

type TransformChain struct {
	// contains filtered or unexported fields
}

type TransformConfig struct {
	// MaxTokens is the maximum output tokens allowed for the request.
	// Used by base transform when converting between protocols.
	MaxTokens int64

	// UserID is the OAuth user ID for authenticated requests.
	UserID string

	// Device is the device identifier (e.g., Claude Code device ID).
	Device string

	// OpenAIConfig holds OpenAI-specific configuration populated during transforms.
	OpenAIConfig *protocol.OpenAIConfig

	// ResponsesConfig holds Responses API-specific configuration populated during transforms.
	ResponsesConfig *protocol.OpenAIConfig
}

type TransformContext struct {
	SourceAPI protocol.APIType
	TargetAPI protocol.APIType

	RequestModel  string
	ResponseModel string

	// Request is the request being transformed.
	// Use SetRequest[T]() to update — only types satisfying RequestUnionConstraint are accepted.
	Request interface{}

	// ProviderURL identifies the provider (e.g., "api.deepseek.com")
	ProviderURL string

	// ProviderType identifies the OAuth provider type (e.g., "claude_code", "codex")
	// This is used for provider-specific model filtering
	ProviderType string

	// ScenarioFlags contains configuration flags for the scenario
	ScenarioFlags *typ.ScenarioFlags

	// IsStreaming indicates if this is a streaming request
	IsStreaming bool

	// OriginalRequest stores the original request before any transformations
	OriginalRequest interface{}

	// TransformSteps records the names of transforms that have been applied
	TransformSteps []string

	// Config holds structured, type-safe configuration for the transform chain.
	Config TransformConfig

	// Extra allows transforms to pass arbitrary data through the chain
	Extra map[string]interface{}
}

type TransformOption func(*TransformContext)

type ValidationError struct {
	Field   string      `json:"field"`
	Message string      `json:"message"`
	Value   interface{} `json:"value,omitempty"`
}

type VendorTransform struct {
	ProviderURL string // e.g., "api.deepseek.com", "api.moonshot.cn"
}