lib/models/channel.ml


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open Async
open Core
include Channel_t

exception Invalid_message
exception No_message_found

let say ~content ch =
    Http.create_message (get_id ch) (`Assoc [("content", `String content)])
    >>| Result.map ~f:Message_t.of_yojson_exn

let send_message ?embed ?content ?file ?(tts=false) ch =
    let embed = match embed with
    | Some e -> Embed.to_yojson e
    | None -> `Null in
    let content = match content with
    | Some c -> `String c
    | None -> `Null in
    let file = match file with
    | Some f -> `String f
    | None -> `Null in
    let () = match embed, content with
    | `Null, `Null -> raise Invalid_message
    | _ -> () in
    Http.create_message (get_id ch) (`Assoc [
        ("embed", embed);
        ("content", content);
        ("file", file);
        ("tts", `Bool tts);
    ]) >>| Result.map ~f:Message_t.of_yojson_exn

let delete ch =
    Http.delete_channel (get_id ch) >>| Result.map ~f:ignore

let get_message ~id ch =
    Http.get_message (get_id ch) id >>| Result.map ~f:Message_t.of_yojson_exn

let get_messages ?(mode=`Around) ?id ?(limit=50) ch =
    let kind = match mode with
    | `Around -> "around", limit
    | `Before -> "before", limit
    | `After -> "after", limit
    in
    let id = match id with
    | Some id -> id
    | None -> raise No_message_found in
    Http.get_messages (get_id ch) id kind >>| Result.map ~f:(fun l ->
        Yojson.Safe.Util.to_list l
        |> List.map ~f:Message_t.of_yojson_exn)

let broadcast_typing ch =
    Http.broadcast_typing (get_id ch) >>| Result.map ~f:ignore

let get_pins ch =
    Http.get_pinned_messages (get_id ch) >>| Result.map ~f:(fun l ->
        Yojson.Safe.Util.to_list l
        |> List.map ~f:Message_t.of_yojson_exn)