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

use crate::{
    client::Client,
    error::Error as HttpError,
    request::{self, AuditLogReason, NullableField, Request, TryIntoRequest},
    response::ResponseFuture,
    routing::Route,
};
use serde::Serialize;
use twilight_model::user::User;
use twilight_validate::request::{
    audit_reason as validate_audit_reason, username as validate_username, ValidationError,
};

#[derive(Serialize)]
struct UpdateCurrentUserFields<'a> {
    #[serde(skip_serializing_if = "Option::is_none")]
    avatar: Option<NullableField<&'a str>>,
    #[serde(skip_serializing_if = "Option::is_none")]
    username: Option<&'a str>,
}

/// Update the current user.
///
/// All parameters are optional. If the username is changed, it may cause the discriminator to be
/// randomized.
#[must_use = "requests must be configured and executed"]
pub struct UpdateCurrentUser<'a> {
    fields: UpdateCurrentUserFields<'a>,
    http: &'a Client,
    reason: Option<&'a str>,
}

impl<'a> UpdateCurrentUser<'a> {
    pub(crate) const fn new(http: &'a Client) -> Self {
        Self {
            fields: UpdateCurrentUserFields {
                avatar: None,
                username: None,
            },
            http,
            reason: None,
        }
    }

    /// Set the user's avatar.
    ///
    /// This must be a Data URI, in the form of
    /// `data:image/{type};base64,{data}` where `{type}` is the image MIME type
    /// and `{data}` is the base64-encoded image. See [Discord Docs/Image Data].
    ///
    /// [Discord Docs/Image Data]: https://discord.com/developers/docs/reference#image-data
    pub const fn avatar(mut self, avatar: Option<&'a str>) -> Self {
        self.fields.avatar = Some(NullableField(avatar));

        self
    }

    /// Set the username.
    ///
    /// The minimum length is 1 UTF-16 character and the maximum is 32 UTF-16 characters.
    ///
    /// # Errors
    ///
    /// Returns an error of type [`Username`] if the username length is too
    /// short or too long.
    ///
    /// [`Username`]: twilight_validate::request::ValidationErrorType::Username
    pub fn username(mut self, username: &'a str) -> Result<Self, ValidationError> {
        validate_username(username)?;

        self.fields.username.replace(username);

        Ok(self)
    }

    /// Execute the request, returning a future resolving to a [`Response`].
    ///
    /// [`Response`]: crate::response::Response
    pub fn exec(self) -> ResponseFuture<User> {
        let http = self.http;

        match self.try_into_request() {
            Ok(request) => http.request(request),
            Err(source) => ResponseFuture::error(source),
        }
    }
}

impl<'a> AuditLogReason<'a> for UpdateCurrentUser<'a> {
    fn reason(mut self, reason: &'a str) -> Result<Self, ValidationError> {
        validate_audit_reason(reason)?;

        self.reason.replace(reason);

        Ok(self)
    }
}

impl TryIntoRequest for UpdateCurrentUser<'_> {
    fn try_into_request(self) -> Result<Request, HttpError> {
        let mut request = Request::builder(&Route::UpdateCurrentUser);

        request = request.json(&self.fields)?;

        if let Some(reason) = &self.reason {
            request = request.headers(request::audit_header(reason)?);
        }

        Ok(request.build())
    }
}