add builders

src/core/types/mod.rs

@@ -9,7 +9,7 @@ pub use self::{
     chat_photo::ChatPhoto,
     document::Document,
     force_reply::ForceReply,
-    inline_keyboard_button::InlineKeyboardButton,
+    inline_keyboard_button::{InlineKeyboardButton, InlineKeyboardButtonKind},
     inline_keyboard_markup::InlineKeyboardMarkup,
     input_file::InputFile,
     input_media::InputMedia,

src/keyboards/inline_keyboard_button.rs

@@ -0,0 +1,55 @@
+use crate::core::types::{InlineKeyboardButton, InlineKeyboardButtonKind};
+
+pub struct InlineKeyboardButtonBuilder;
+
+/// Build buttons
+///
+/// Example:
+/// ```edition2018
+/// use async_telegram_bot::keyboards::InlineKeyboardButtonBuilder;
+///
+/// fn main() {
+///     let url_button = InlineKeyboardButtonBuilder::url(
+///         "Text".to_string(),
+///         "http://url.com".to_string(),
+///     );
+/// }
+/// ```
+impl InlineKeyboardButtonBuilder {
+    pub fn url(text: String, url: String) -> InlineKeyboardButton {
+        InlineKeyboardButton {
+            text,
+            kind: InlineKeyboardButtonKind::Url(url),
+        }
+    }
+
+    pub fn callback(text: String, callback_data: String)
+        -> InlineKeyboardButton {
+        InlineKeyboardButton {
+            text,
+            kind: InlineKeyboardButtonKind::CallbackData(callback_data),
+        }
+    }
+
+    pub fn switch_inline_query(text: String, switch_inline_query: String)
+        -> InlineKeyboardButton {
+        InlineKeyboardButton {
+            text,
+            kind: InlineKeyboardButtonKind::SwitchInlineQuery(switch_inline_query)
+        }
+    }
+
+    pub fn switch_inline_query_current_chat(
+        text: String,
+        switch_inline_query_current_chat: String
+    ) -> InlineKeyboardButton {
+
+        InlineKeyboardButton {
+            text,
+            kind: InlineKeyboardButtonKind::SwitchInlineQueryCurrentChat(
+                switch_inline_query_current_chat
+            )
+        }
+    }
+}
+

src/keyboards/inline_keyboard_markup.rs

@@ -0,0 +1,70 @@
+use crate::core::types::{InlineKeyboardMarkup, InlineKeyboardButton};
+
+pub struct InlineKeyboardMarkupBuilder {
+    keyboard: InlineKeyboardMarkup,
+}
+
+/// Builder for [`InlineKeyboardMarkup`]
+///
+/// Example:
+/// ```edition2018
+/// use async_telegram_bot::keyboards;
+///
+/// fn main() {
+///     let url_button = keyboards::InlineKeyboardButtonBuilder::url(
+///         "text".to_string(),
+///         "http://url.com".to_string()
+///     );
+///     let keyboard = keyboards::InlineKeyboardMarkupBuilder::new()
+///         .row(vec![url_button])
+///         .build();
+/// }
+/// ```
+impl InlineKeyboardMarkupBuilder {
+    pub fn new() -> Self {
+        Self {
+            keyboard: InlineKeyboardMarkup {
+                inline_keyboard: vec![]
+            }
+        }
+    }
+
+    pub fn row(mut self, buttons: Vec<InlineKeyboardButton>) -> Self {
+        self.keyboard.inline_keyboard.push(buttons);
+        self
+    }
+
+    pub fn append_to_row(mut self, button: InlineKeyboardButton, index: usize)
+        -> Self {
+        match self.keyboard.inline_keyboard.get_mut(index) {
+            Some(&mut mut buttons) => buttons.push(button),
+            None => self.keyboard.inline_keyboard.push(vec![button])
+        };
+        self
+    }
+
+    pub fn build(self) -> InlineKeyboardMarkup {
+        self.keyboard
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::keyboards::InlineKeyboardButtonBuilder;
+
+    #[test]
+    fn test_row() {
+        let btn = InlineKeyboardButtonBuilder::url(
+            "text".to_string(),
+            "http://url".to_string(),
+        );
+        let kb = InlineKeyboardMarkupBuilder::new()
+            .row(vec![btn.clone()])
+            .build();
+        let expected = InlineKeyboardMarkup {
+            inline_keyboard: vec![vec![btn.clone()]],
+        };
+        assert_eq!(kb, expected);
+    }
+}

src/keyboards/mod.rs

@@ -0,0 +1,7 @@
+mod inline_keyboard_button;
+mod inline_keyboard_markup;
+
+pub use self::{
+    inline_keyboard_button::InlineKeyboardButtonBuilder,
+    inline_keyboard_markup::InlineKeyboardMarkupBuilder,
+};

src/lib.rs

@@ -5,3 +5,4 @@ extern crate serde;
 
 pub mod bot;
 pub mod core;
+pub mod keyboards;