panda 0.5.3

An async Rust library for Discord
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146

// models
use super::session::SessionData;
use crate::models::gateway::events::*;

use std::{error::Error, sync::Arc};

// async
// Futures
use futures::future::BoxFuture;

pub(crate) type EventResult = Result<(), Box<dyn Error>>;

/// Helper macro to create futures function trait
macro_rules! event_trait {
    ($event: tt) => {
        dyn Fn(Arc<SessionData<S>>, $event) -> BoxFuture<'static, EventResult> + Send + Sync
    };
}

// READY function trait
type ReadyFn<S> = event_trait!(Ready);

// CHANNEL functions trait
type ChannelCreateFn<S> = event_trait!(ChannelCreate);
type ChannelUpdateFn<S> = event_trait!(ChannelUpdate);
type ChannelDeleteFn<S> = event_trait!(ChannelDelete);
type ChannelPinsUpdateFn<S> = event_trait!(ChannelPinsUpdate);

// GUILD functions trait
type GuildCreateFn<S> = event_trait!(GuildCreate);
type GuildUpdateFn<S> = event_trait!(GuildUpdate);
type GuildDeleteFn<S> = event_trait!(GuildDelete);
type GuildBanAddFn<S> = event_trait!(GuildBanAdd);
type GuildBanRemoveFn<S> = event_trait!(GuildBanRemove);
type GuildEmojisUpdateFn<S> = event_trait!(GuildEmojisUpdate);
type GuildIntegrationsUpdateFn<S> = event_trait!(GuildIntegrationsUpdate);
type GuildMemberAddFn<S> = event_trait!(GuildMemberAdd);
type GuildMemberUpdateFn<S> = event_trait!(GuildMemberUpdate);
type GuildMemberRemoveFn<S> = event_trait!(GuildMemberRemove);
type GuildMembersChunkFn<S> = event_trait!(GuildMembersChunk);
type GuildRoleCreateFn<S> = event_trait!(GuildRoleCreate);
type GuildRoleUpdateFn<S> = event_trait!(GuildRoleUpdate);
type GuildRoleDeleteFn<S> = event_trait!(GuildRoleDelete);

// MESSAGE functions trait
type MessageCreateFn<S> = event_trait!(MessageCreate);
type MessageUpdateFn<S> = event_trait!(MessageUpdate);
type MessageDeleteFn<S> = event_trait!(MessageDelete);
type MessageDeleteBulkFn<S> = event_trait!(MessageDeleteBulk);
type MessageReactionAddFn<S> = event_trait!(MessageReactionAdd);
type MessageReactionRemoveFn<S> = event_trait!(MessageReactionRemove);
type MessageReactionRemoveAllFn<S> = event_trait!(MessageReactionRemoveAll);
type MessageReactionRemoveEmojiFn<S> = event_trait!(MessageReactionRemoveEmoji);

// Presence functions trait
type PresenceUpdateFn<S> = event_trait!(PresenceUpdate);
type TypingStartFn<S> = event_trait!(TypingStart);
type UserUpdateFn<S> = event_trait!(UserUpdate);

type OptionBox<T> = Option<Box<T>>;

/// This struct it's where all functions created by the user will be saved
pub(crate) struct EventHandler<S> {
    pub(crate) ready: OptionBox<ReadyFn<S>>,

    // Channel
    pub(crate) channel_create: OptionBox<ChannelCreateFn<S>>,
    pub(crate) channel_update: OptionBox<ChannelUpdateFn<S>>,
    pub(crate) channel_delete: OptionBox<ChannelDeleteFn<S>>,
    pub(crate) channel_pins_update: OptionBox<ChannelPinsUpdateFn<S>>,

    // Guild
    pub(crate) guild_create: OptionBox<GuildCreateFn<S>>,
    pub(crate) guild_update: OptionBox<GuildUpdateFn<S>>,
    pub(crate) guild_delete: OptionBox<GuildDeleteFn<S>>,
    pub(crate) guild_ban_add: OptionBox<GuildBanAddFn<S>>,
    pub(crate) guild_ban_remove: OptionBox<GuildBanRemoveFn<S>>,
    pub(crate) guild_emojis_update: OptionBox<GuildEmojisUpdateFn<S>>,
    pub(crate) guild_integrations_update: OptionBox<GuildIntegrationsUpdateFn<S>>,
    pub(crate) guild_member_add: OptionBox<GuildMemberAddFn<S>>,
    pub(crate) guild_member_remove: OptionBox<GuildMemberRemoveFn<S>>,
    pub(crate) guild_member_update: OptionBox<GuildMemberUpdateFn<S>>,
    pub(crate) guild_members_chunk: OptionBox<GuildMembersChunkFn<S>>,
    pub(crate) guild_role_create: OptionBox<GuildRoleCreateFn<S>>,
    pub(crate) guild_role_update: OptionBox<GuildRoleUpdateFn<S>>,
    pub(crate) guild_role_delete: OptionBox<GuildRoleDeleteFn<S>>,

    // Message
    pub(crate) message_create: OptionBox<MessageCreateFn<S>>,
    pub(crate) message_update: OptionBox<MessageUpdateFn<S>>,
    pub(crate) message_delete: OptionBox<MessageDeleteFn<S>>,
    pub(crate) message_delete_bulk: OptionBox<MessageDeleteBulkFn<S>>,
    pub(crate) message_reaction_add: OptionBox<MessageReactionAddFn<S>>,
    pub(crate) message_reaction_remove: OptionBox<MessageReactionRemoveFn<S>>,
    pub(crate) message_reaction_remove_all: OptionBox<MessageReactionRemoveAllFn<S>>,
    pub(crate) message_reaction_remove_emoji: OptionBox<MessageReactionRemoveEmojiFn<S>>,

    // Presence
    pub(crate) presence_update: OptionBox<PresenceUpdateFn<S>>,
    pub(crate) typing_start: OptionBox<TypingStartFn<S>>,
    pub(crate) user_update: OptionBox<UserUpdateFn<S>>,
}

impl<S> EventHandler<S> {
    pub(crate) fn new() -> Self {
        Self {
            ready: None,

            // Channel
            channel_create: None,
            channel_update: None,
            channel_delete: None,
            channel_pins_update: None,

            // Guild
            guild_create: None,
            guild_update: None,
            guild_delete: None,
            guild_ban_add: None,
            guild_ban_remove: None,
            guild_emojis_update: None,
            guild_integrations_update: None,
            guild_member_add: None,
            guild_member_remove: None,
            guild_member_update: None,
            guild_members_chunk: None,
            guild_role_create: None,
            guild_role_update: None,
            guild_role_delete: None,

            // Message
            message_create: None,
            message_update: None,
            message_delete: None,
            message_delete_bulk: None,
            message_reaction_add: None,
            message_reaction_remove: None,
            message_reaction_remove_all: None,
            message_reaction_remove_emoji: None,
            // Presence
            presence_update: None,
            typing_start: None,
            user_update: None,
        }
    }
}