mirror of
https://github.com/diamondburned/arikawa.git
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219 lines
6.4 KiB
Go
219 lines
6.4 KiB
Go
package api
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import (
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"net/url"
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"github.com/diamondburned/arikawa/v2/discord"
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"github.com/diamondburned/arikawa/v2/utils/httputil"
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)
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const maxMessageReactionFetchLimit = 100
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// React creates a reaction for the message.
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//
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// This endpoint requires the READ_MESSAGE_HISTORY permission to be present on
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// the current user. Additionally, if nobody else has reacted to the message
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// using this emoji, this endpoint requires the 'ADD_REACTIONS' permission to
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// be present on the current user.
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func (c *Client) React(channelID discord.ChannelID, messageID discord.MessageID, emoji Emoji) error {
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var msgURL = EndpointChannels + channelID.String() +
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"/messages/" + messageID.String() +
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"/reactions/" + url.PathEscape(emoji) + "/@me"
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return c.FastRequest("PUT", msgURL)
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}
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// Unreact removes a reaction the current user has made for the message.
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func (c *Client) Unreact(chID discord.ChannelID, msgID discord.MessageID, emoji Emoji) error {
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return c.DeleteUserReaction(chID, msgID, 0, emoji)
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}
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// Reactions returns a list of users that reacted with the passed Emoji. This
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// method automatically paginates until it reaches the passed limit, or, if the
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// limit is set to 0, has fetched all users within the passed range.
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//
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// As the underlying endpoint has a maximum of 100 users per request, at
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// maximum a total of limit/100 rounded up requests will be made, although they
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// may be less, if no more guilds are available.
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//
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// When fetching the users, those with the smallest ID will be fetched first.
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func (c *Client) Reactions(
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channelID discord.ChannelID, messageID discord.MessageID, emoji Emoji, limit uint) ([]discord.User, error) {
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return c.ReactionsAfter(channelID, messageID, 0, emoji, limit)
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}
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// ReactionsBefore returns a list of users that reacted with the passed Emoji.
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// This method automatically paginates until it reaches the passed limit, or,
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// if the limit is set to 0, has fetched all users with an id smaller than
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// before.
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//
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// As the underlying endpoint has a maximum of 100 users per request, at
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// maximum a total of limit/100 rounded up requests will be made, although they
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// may be less, if no more guilds are available.
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func (c *Client) ReactionsBefore(
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channelID discord.ChannelID, messageID discord.MessageID, before discord.UserID, emoji Emoji,
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limit uint) ([]discord.User, error) {
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users := make([]discord.User, 0, limit)
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fetch := uint(maxMessageReactionFetchLimit)
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unlimited := limit == 0
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for limit > 0 || unlimited {
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// Only fetch as much as we need. Since limit gradually decreases,
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// we only need to fetch min(fetch, limit).
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if limit > 0 {
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if fetch > limit {
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fetch = limit
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}
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limit -= fetch
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}
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r, err := c.reactionsRange(channelID, messageID, before, 0, emoji, fetch)
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if err != nil {
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return users, err
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}
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users = append(r, users...)
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if len(r) < maxMessageReactionFetchLimit {
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break
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}
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before = r[0].ID
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}
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if len(users) == 0 {
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return nil, nil
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}
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return users, nil
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}
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// ReactionsAfter returns a list of users that reacted with the passed Emoji.
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// This method automatically paginates until it reaches the passed limit, or,
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// if the limit is set to 0, has fetched all users with an id higher than
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// after.
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//
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// As the underlying endpoint has a maximum of 100 users per request, at
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// maximum a total of limit/100 rounded up requests will be made, although they
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// may be less, if no more guilds are available.
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func (c *Client) ReactionsAfter(
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channelID discord.ChannelID, messageID discord.MessageID, after discord.UserID, emoji Emoji,
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limit uint) ([]discord.User, error) {
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users := make([]discord.User, 0, limit)
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fetch := uint(maxMessageReactionFetchLimit)
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unlimited := limit == 0
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for limit > 0 || unlimited {
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// Only fetch as much as we need. Since limit gradually decreases,
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// we only need to fetch min(fetch, limit).
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if limit > 0 {
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if fetch > limit {
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fetch = limit
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}
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limit -= fetch
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}
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r, err := c.reactionsRange(channelID, messageID, 0, after, emoji, fetch)
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if err != nil {
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return users, err
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}
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users = append(users, r...)
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if len(r) < maxMessageReactionFetchLimit {
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break
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}
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after = r[len(r)-1].ID
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}
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if len(users) == 0 {
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return nil, nil
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}
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return users, nil
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}
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// reactionsRange get users before and after IDs. Before, after, and limit are
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// optional. A maximum limit of only 100 reactions could be returned.
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func (c *Client) reactionsRange(
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channelID discord.ChannelID, messageID discord.MessageID, before, after discord.UserID, emoji Emoji,
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limit uint) ([]discord.User, error) {
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switch {
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case limit == 0:
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limit = 25
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case limit > 100:
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limit = 100
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}
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var param struct {
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Before discord.UserID `schema:"before,omitempty"`
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After discord.UserID `schema:"after,omitempty"`
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Limit uint `schema:"limit"`
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}
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param.Before = before
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param.After = after
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param.Limit = limit
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var users []discord.User
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return users, c.RequestJSON(
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&users, "GET", EndpointChannels+channelID.String()+
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"/messages/"+messageID.String()+
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"/reactions/"+url.PathEscape(emoji),
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httputil.WithSchema(c, param),
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)
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}
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// DeleteReaction deletes another user's reaction.
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//
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// This endpoint requires the MANAGE_MESSAGES permission to be present on the
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// current user.
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func (c *Client) DeleteUserReaction(
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channelID discord.ChannelID, messageID discord.MessageID, userID discord.UserID, emoji Emoji) error {
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var user = "@me"
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if userID > 0 {
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user = userID.String()
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}
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return c.FastRequest(
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"DELETE",
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EndpointChannels+channelID.String()+"/messages/"+messageID.String()+
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"/reactions/"+url.PathEscape(emoji)+"/"+user,
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)
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}
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// DeleteReactions deletes all the reactions for a given emoji on a message.
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//
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// This endpoint requires the MANAGE_MESSAGES permission to be present on the
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// current user.
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// Fires a Message Reaction Remove Emoji Gateway event.
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func (c *Client) DeleteReactions(
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channelID discord.ChannelID, messageID discord.MessageID, emoji Emoji) error {
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return c.FastRequest(
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"DELETE",
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EndpointChannels+channelID.String()+"/messages/"+messageID.String()+
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"/reactions/"+url.PathEscape(emoji),
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)
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}
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// DeleteAllReactions deletes all reactions on a message.
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//
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// This endpoint requires the MANAGE_MESSAGES permission to be present on the
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// current user.
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// Fires a Message Reaction Remove All Gateway event.
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func (c *Client) DeleteAllReactions(channelID discord.ChannelID, messageID discord.MessageID) error {
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return c.FastRequest(
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"DELETE",
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EndpointChannels+channelID.String()+"/messages/"+messageID.String()+"/reactions/",
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)
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}
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