syntax = "proto3";

package usage.v1;

option go_package = "github.com/gitpod-io/gitpod/usage-api/v1";

import "google/protobuf/timestamp.proto";

service UsageService {
    // ListBilledUsage retrieves all usage for the specified attributionId
    rpc ListBilledUsage(ListBilledUsageRequest) returns (ListBilledUsageResponse) {}

    // CollectUsage collects usage for the specified time period, and stores the usage records in the database, returning the records.
    rpc CollectUsage(CollectUsageRequest) returns (CollectUsageResponse) {}
}

message ListBilledUsageRequest {
    string attribution_id = 1;

    // from specifies the starting time range for this request.
    // All instances which existed starting at from will be returned.
    google.protobuf.Timestamp from = 2;

    // to specifies the end time range for this request.
    // All instances which existed ending at to will be returned.
    google.protobuf.Timestamp to = 3;

    enum Ordering {
        ORDERING_DESCENDING = 0;
        ORDERING_ASCENDING = 1;
    }

    Ordering order = 4;
}

message ListBilledUsageResponse {
    repeated BilledSession sessions = 1;
}

message BilledSession {
    string attribution_id = 1;

    string user_id = 2;
    string team_id = 3;

    string workspace_id = 4;
    string workspace_type = 5;
    string project_id = 6;

    string instance_id = 7;
    string workspace_class = 8;
    google.protobuf.Timestamp start_time = 9;
    google.protobuf.Timestamp end_time = 10;

    int64 credits_deprecated = 11 [deprecated=true];   // insufficient precision to represent credits for workspace time
    double credits = 12;
}

message CollectUsageRequest {
    google.protobuf.Timestamp start_time = 1;
    google.protobuf.Timestamp end_time = 2;
}

message CollectUsageResponse {
    repeated BilledSession sessions = 1;
}