type _Service {
    sdl: String
}

enum MessageStatus {
    NEW
    UPDATED
    DELETED
}

type ChatMember {
    id: Int!
    slug: String!
    name: String!
    pic: String
    last_seen: Int!
    online: Boolean
    # invitedAt: DateTime
    # invitedBy: String # user slug
    # TODO: keep invite databit
}

input ChatInput {
    id: String!
    title: String
    description: String
}

input MessageInput {
    id: String!
    chat_id: String!
    body: String
    seen: Boolean
}

type ChatResult {
    error: String
    chat: Chat
    chats: [Chat]
    message: Message
    messages: [Message]
    members: [ChatMember]
}


type Mutation {
    # inbox
    create_chat(title: String, members: [Int]!): ChatResult!
    update_chat(chat: ChatInput!): ChatResult!
    delete_chat(chat_id: String!): ChatResult!

    create_message(chat_id: String!, body: String!, reply_to: Int): ChatResult!
    update_message(message: MessageInput!): ChatResult!
    delete_message(chat_id: String!, message_id: Int!): ChatResult!
    mark_as_read(chat_id: String!, message_id: Int!): ChatResult!
}

input MessagesBy {
    created_by: String
    body: String
    chat: String
    order: String
    days: Int
    stat: String
}

type Query {
    # inbox
    load_chats(limit: Int, offset: Int): ChatResult!  # your chats
    load_messages_by(by: MessagesBy!, limit: Int, offset: Int): ChatResult!
    load_recipients(limit: Int, offset: Int): ChatResult!
    search_recipients(query: String!, limit: Int, offset: Int): ChatResult!
    search_messages(by: MessagesBy!, limit: Int, offset: Int): ChatResult!
    _service: _Service!
}

type Message {
    id: Int!
    created_by: Int!
    created_at: Int!
    chat_id: String!
    body: String!
    updated_at: Int
    reply_to: Int
    seen: Boolean
}

type Chat {
    id: String!
    created_by: Int!  # member_id
    created_at: Int!
    members: [ChatMember]
    admins: [Int]
    updated_at: Int
    title: String
    description: String
    messages: [Message]
    unread: Int
}