syntax = "proto3";

package printer.v1.invoice;

option go_package = "git.deineagentur.com/payment-backoffice/protobuf/gen/proto/printer";

import "google/type/money.proto";
import "google/type/datetime.proto";
import "google/api/annotations.proto";

// PaymentProvider represents the supported set
// of payment providers.
enum InvoiceType {
    INVOICE_TYPE_UNSPECIFIED = 0;
    INVOICE_TYPE_PAID = 1;
    INVOICE_TYPE_OPEN = 2;
}

enum OrderType {
    ORDER_TYPE_UNSPECIFIED = 0;
    ORDER_TYPE_PHONE = 1;
    ORDER_TYPE_WWW = 2;
    ORDER_TYPE_EMAIL = 3;
}

message InvoiceInfo {
    string invoice_id = 1;
    google.type.DateTime invoice_date = 2;
    google.type.DateTime invoice_due_date = 3;
    InvoiceType invoice_type = 4;
}

message OrderInfo {
    string order_id = 1;
    google.type.DateTime order_date = 2;
    google.type.DateTime order_due_date = 3;
    OrderType order_type = 4;
    repeated OrderItem order_items = 5;
    repeated OrderVatItem  order_vat_items = 6;
    optional double deposit = 7;
}

message OfferInfo {
    string offer_id = 1;
    google.type.DateTime offer_date = 2;
    google.type.DateTime offer_due_date = 3;
}

message OrderItem {
    string description = 1;
    double vat = 2;
    uint64 count = 3;
    double price_single = 4;
    double price_sum = 5;
    bool price_net = 6;
}

message OrderVatItem {
    string description = 1;
    double vat = 2;
    double vat_money_sum = 3;
    uint64 items_count = 4;
}

// Invoice
message Invoice {
    OrderInfo order = 1;
    OfferInfo offer = 2;
    InvoiceInfo info = 3;
}

// PDF Response
message DocumentResponse {
    bytes document = 1;
    string signature = 2;
    string sha512 = 3;
}

service PrinterService {
    rpc InvoiceGen(Invoice) returns (DocumentResponse) {
        option (google.api.http) = {
            post: "/v1/printer/invoice"
            body: "*"
        };
    };
}