package contract

// FaceMatchRequest is the inbound payload from clients of this service to
// trigger a Dukcapil 1:N face recognition lookup.
//
// Only the image file is required from the client. All other parameters
// (transaction_id, transaction_source, threshold, ip) are generated or
// retrieved from configuration in the backend.
type FaceMatchRequest struct {
	TransactionID     string `json:"transaction_id"`
	TransactionSource string `json:"transaction_source"`
	Threshold         string `json:"threshold"`
	Image             string `json:"image"`
	IP                string `json:"ip"`
}

// DukcapilFaceRequest is the exact JSON body sent to the Dukcapil
// face-recognition endpoint (CALL_FN). user_id and password are RSA encrypted
// with the provided public key and base64 encoded.
type DukcapilFaceRequest struct {
	TransactionID     string `json:"transactionId"`
	TransactionSource string `json:"transactionSource"`
	Threshold         string `json:"threshold"`
	Image             string `json:"image"`
	UserID            string `json:"user_id"`
	Password          string `json:"password"`
	IP                string `json:"ip"`
}

// DukcapilFaceResponse is the standard Dukcapil response envelope (success +
// most error variants share this shape). Some error variants use a different
// shape – clients should also inspect ErrorCode.
type DukcapilFaceResponse struct {
	TID             string      `json:"tid"`
	EncounterID     interface{} `json:"encounter_id"`
	Error           string      `json:"error"`
	ErrorCode       string      `json:"errorCode"`
	FingerData      interface{} `json:"finger_data"`
	IrisData        interface{} `json:"iris_data"`
	FaceData        interface{} `json:"face_data"`
	RequestType     string      `json:"request_type"`
	MaxResults      int         `json:"maxResults"`
	FaceThreshold   string      `json:"faceThreshold"`
	FingerThreshold int         `json:"fingerThreshold"`
	IrisThreshold   int         `json:"irisThreshold"`
	Response        string      `json:"response"`
}

// FaceMatchResponse is what we return to our API consumers.
type FaceMatchResponse struct {
	TID         string             `json:"tid"`
	ErrorCode   string             `json:"error_code"`
	Error       string             `json:"error"`
	RequestType string             `json:"request_type"`
	Threshold   string             `json:"threshold"`
	MaxResults  int                `json:"max_results"`
	Matches     []FaceMatchResult  `json:"matches"`
	Raw         *DukcapilFaceResponse `json:"raw,omitempty"`
}

// FaceMatchResult represents a single (NIK -> score) entry from the Dukcapil
// `response.face.FACE_T5` map.
type FaceMatchResult struct {
	NIK   string  `json:"nik"`
	Score float64 `json:"score"`
}