"""An operation applied to a bug."""
interface Operation {
    """The identifier of the operation"""
    id: String!
    """The operations author."""
    author: Identity!
    """The datetime when this operation was issued."""
    date: Time!
}

# Connection

"""The connection type for an Operation"""
type OperationConnection {
    edges: [OperationEdge!]!
    nodes: [Operation!]!
    pageInfo: PageInfo!
    totalCount: Int!
}

"""Represent an Operation"""
type OperationEdge {
    cursor: String!
    node: Operation!
}

# Operations

type CreateOperation implements Operation & Authored {
    """The identifier of the operation"""
    id: String!
    """The author of this object."""
    author: Identity!
    """The datetime when this operation was issued."""
    date: Time!

    title: String!
    message: String!
    files: [Hash!]!
}

type SetTitleOperation implements Operation & Authored {
    """The identifier of the operation"""
    id: String!
    """The author of this object."""
    author: Identity!
    """The datetime when this operation was issued."""
    date: Time!

    title: String!
    was: String!
}

type AddCommentOperation implements Operation & Authored {
    """The identifier of the operation"""
    id: String!
    """The author of this object."""
    author: Identity!
    """The datetime when this operation was issued."""
    date: Time!

    message: String!
    files: [Hash!]!
}

type EditCommentOperation implements Operation & Authored {
    """The identifier of the operation"""
    id: String!
    """The author of this object."""
    author: Identity!
    """The datetime when this operation was issued."""
    date: Time!

    target: String!
    message: String!
    files: [Hash!]!
}

type SetStatusOperation implements Operation & Authored {
    """The identifier of the operation"""
    id: String!
    """The author of this object."""
    author: Identity!
    """The datetime when this operation was issued."""
    date: Time!

    status: Status!
}

type LabelChangeOperation implements Operation & Authored {
    """The identifier of the operation"""
    id: String!
    """The author of this object."""
    author: Identity!
    """The datetime when this operation was issued."""
    date: Time!

    added: [Label!]!
    removed: [Label!]!
}