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

use super::call_method;
use crate::{bot::InnerBot, errors, types::inline_query};
use serde::Serialize;

/// Answers an inline query.
///
/// Reflects the [`answerInlineQuery`][docs] method.
///
/// [docs]: https://core.telegram.org/bots/api#answerinlinequery
#[derive(Debug, Clone, Serialize)]
#[must_use = "methods do nothing unless turned into a future"]
pub struct AnswerInlineQuery<'a> {
    #[serde(skip)]
    bot: &'a InnerBot,
    inline_query_id: inline_query::Id,
    results: Vec<inline_query::Result>,
    #[serde(skip_serializing_if = "Option::is_none")]
    cache_time: Option<u64>,
    #[serde(skip_serializing_if = "Option::is_none")]
    is_personal: Option<bool>,
    #[serde(skip_serializing_if = "Option::is_none")]
    next_offset: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    switch_pm_text: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    switch_pm_parameter: Option<String>,
}

impl<'a> AnswerInlineQuery<'a> {
    pub(crate) fn new(
        bot: &'a InnerBot,
        inline_query_id: inline_query::Id,
        results: impl Into<Vec<inline_query::Result>>,
    ) -> Self {
        Self {
            bot,
            inline_query_id,
            results: results.into(),
            cache_time: None,
            is_personal: None,
            next_offset: None,
            switch_pm_text: None,
            switch_pm_parameter: None,
        }
    }

    /// Configures the amount of time (in seconds) for which the answer may be
    /// cached. Reflects the `cache_time` parameter.
    pub const fn cache_time(mut self, time: u64) -> Self {
        self.cache_time = Some(time);
        self
    }

    /// Configures whether the result may be cached only for the user who sent
    /// the query. Reflects the `is_personal` parameter.
    pub const fn is_personal(mut self, is_personal: bool) -> Self {
        self.is_personal = Some(is_personal);
        self
    }

    /// Configures the offset to be sent in the next query.
    /// Reflects the `next_offset` parameter.
    pub fn next_offset(mut self, offset: impl Into<String>) -> Self {
        self.next_offset = Some(offset.into());
        self
    }

    /// Configures a button that switches the user to the private chat
    /// with your bot. Reflects the `switch_pm_text` and `switch_pm_parameter`
    /// parameters respectively.
    pub fn switch_pm(
        mut self,
        text: impl Into<String>,
        parameter: impl Into<String>,
    ) -> Self {
        self.switch_pm_text = Some(text.into());
        self.switch_pm_parameter = Some(parameter.into());
        self
    }
}

impl AnswerInlineQuery<'_> {
    /// Calls the method.
    pub async fn call(self) -> Result<(), errors::MethodCall> {
        call_method::<bool>(
            self.bot,
            "answerInlineQuery",
            None,
            serde_json::to_vec(&self).unwrap(),
        )
        .await?;

        Ok(())
    }
}