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

use crate::request::prelude::*;
use std::{
    error::Error,
    fmt::{Display, Formatter, Result as FmtResult},
};
use twilight_model::{
    guild::GuildPrune,
    id::{GuildId, RoleId},
};

/// The error created when the guild prune can not be created as configured.
#[derive(Clone, Debug)]
#[non_exhaustive]
pub enum CreateGuildPruneError {
    /// The number of days is 0.
    DaysInvalid,
}

impl Display for CreateGuildPruneError {
    fn fmt(&self, f: &mut Formatter<'_>) -> FmtResult {
        match self {
            Self::DaysInvalid { .. } => f.write_str("the number of days is invalid"),
        }
    }
}

impl Error for CreateGuildPruneError {}

#[derive(Default)]
struct CreateGuildPruneFields {
    compute_prune_count: Option<bool>,
    days: Option<u64>,
    include_roles: Vec<u64>,
}

/// Begin a guild prune.
///
/// Refer to [the discord docs] for more information.
///
/// [the discord docs]: https://discord.com/developers/docs/resources/guild#begin-guild-prune
pub struct CreateGuildPrune<'a> {
    fields: CreateGuildPruneFields,
    guild_id: GuildId,
    fut: Option<Pending<'a, Option<GuildPrune>>>,
    http: &'a Client,
    reason: Option<String>,
}

impl<'a> CreateGuildPrune<'a> {
    pub(crate) fn new(http: &'a Client, guild_id: GuildId) -> Self {
        Self {
            fields: CreateGuildPruneFields::default(),
            fut: None,
            guild_id,
            http,
            reason: None,
        }
    }

    /// List of roles to include when pruning.
    pub fn include_roles(mut self, roles: impl Iterator<Item = RoleId>) -> Self {
        let roles = roles.map(|e| e.0).collect::<Vec<_>>();

        self.fields.include_roles = roles;

        self
    }

    /// Return the amount of pruned members. Discouraged for large guilds.
    pub fn compute_prune_count(mut self, compute_prune_count: bool) -> Self {
        self.fields.compute_prune_count.replace(compute_prune_count);

        self
    }

    /// Set the number of days that a user must be inactive before being pruned.
    ///
    /// The number of days must be greater than 0.
    ///
    /// # Errors
    ///
    /// Returns [`CreateGuildPruneError::DaysInvalid`] if the number of days is 0.
    ///
    /// [`CreateGuildPruneError::DaysInvalid`]: enum.CreateGuildPruneError.html#variant.DaysInvalid
    pub fn days(mut self, days: u64) -> Result<Self, CreateGuildPruneError> {
        if !validate::guild_prune_days(days) {
            return Err(CreateGuildPruneError::DaysInvalid);
        }

        self.fields.days.replace(days);

        Ok(self)
    }

    #[deprecated(
        since = "0.1.5",
        note = "please prefer the request::AuditLogReason trait"
    )]
    /// Attach an audit log reason to this request.
    pub fn reason(mut self, reason: impl Into<String>) -> Self {
        self.reason.replace(reason.into());

        self
    }

    fn start(&mut self) -> Result<()> {
        let request = if let Some(reason) = &self.reason {
            let headers = audit_header(&reason)?;
            Request::from((
                headers,
                Route::CreateGuildPrune {
                    compute_prune_count: self.fields.compute_prune_count,
                    days: self.fields.days,
                    guild_id: self.guild_id.0,
                    include_roles: self.fields.include_roles.clone(),
                },
            ))
        } else {
            Request::from(Route::CreateGuildPrune {
                compute_prune_count: self.fields.compute_prune_count,
                days: self.fields.days,
                guild_id: self.guild_id.0,
                include_roles: self.fields.include_roles.clone(),
            })
        };

        self.fut.replace(Box::pin(self.http.request(request)));

        Ok(())
    }
}

impl<'a> AuditLogReason for CreateGuildPrune<'a> {
    fn reason(mut self, reason: impl Into<String>) -> Result<Self, AuditLogReasonError> {
        self.reason
            .replace(AuditLogReasonError::validate(reason.into())?);

        Ok(self)
    }
}

poll_req!(CreateGuildPrune<'_>, Option<GuildPrune>);