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use crate::{
    net,
    requests::{form_builder::FormBuilder, Request, ResponseResult},
    types::{ChatId, InputFile, Message, ParseMode, ReplyMarkup},
    Bot,
};
use std::sync::Arc;

/// Use this method to send general files.
///
/// Bots can currently send files of any type of up to 50 MB in size, this limit
/// may be changed in the future.
///
/// [The official docs](https://core.telegram.org/bots/api#senddocument).
#[derive(Debug, Clone)]
pub struct SendDocument {
    bot: Arc<Bot>,
    chat_id: ChatId,
    document: InputFile,
    thumb: Option<InputFile>,
    caption: Option<String>,
    parse_mode: Option<ParseMode>,
    disable_notification: Option<bool>,
    reply_to_message_id: Option<i32>,
    reply_markup: Option<ReplyMarkup>,
}

#[async_trait::async_trait]
impl Request for SendDocument {
    type Output = Message;

    async fn send(&self) -> ResponseResult<Message> {
        net::request_multipart(
            self.bot.client(),
            self.bot.token(),
            "sendDocument",
            FormBuilder::new()
                .add("chat_id", &self.chat_id)
                .await
                .add("document", &self.document)
                .await
                .add("thumb", &self.thumb)
                .await
                .add("caption", &self.caption)
                .await
                .add("parse_mode", &self.parse_mode)
                .await
                .add("disable_notification", &self.disable_notification)
                .await
                .add("reply_to_message_id", &self.reply_to_message_id)
                .await
                .add("reply_markup", &self.reply_markup)
                .await
                .build(),
        )
        .await
    }
}

impl SendDocument {
    pub(crate) fn new<C>(bot: Arc<Bot>, chat_id: C, document: InputFile) -> Self
    where
        C: Into<ChatId>,
    {
        Self {
            bot,
            chat_id: chat_id.into(),
            document,
            thumb: None,
            caption: None,
            parse_mode: None,
            disable_notification: None,
            reply_to_message_id: None,
            reply_markup: None,
        }
    }

    /// Unique identifier for the target chat or username of the target channel
    /// (in the format `@channelusername`).
    pub fn chat_id<T>(mut self, val: T) -> Self
    where
        T: Into<ChatId>,
    {
        self.chat_id = val.into();
        self
    }

    /// File to send.
    ///
    /// Pass a file_id as String to send a file that exists on the
    /// Telegram servers (recommended), pass an HTTP URL as a String for
    /// Telegram to get a file from the Internet, or upload a new one using
    /// `multipart/form-data`. [More info on Sending Files »].
    ///
    /// [More info on Sending Files »]: https://core.telegram.org/bots/api#sending-files
    pub fn document(mut self, val: InputFile) -> Self {
        self.document = val;
        self
    }

    /// Thumbnail of the file sent; can be ignored if thumbnail generation for
    /// the file is supported server-side.
    ///
    /// The thumbnail should be in JPEG format and less than 200 kB in size. A
    /// thumbnail‘s width and height should not exceed 320. Ignored if the
    /// file is not uploaded using `multipart/form-data`. Thumbnails can’t
    /// be reused and can be only uploaded as a new file, so you can pass
    /// “attach://<file_attach_name>” if the thumbnail was uploaded using
    /// `multipart/form-data` under `<file_attach_name>`. [More info on
    /// Sending Files »].
    ///
    /// [More info on Sending Files »]: https://core.telegram.org/bots/api#sending-files
    pub fn thumb(mut self, val: InputFile) -> Self {
        self.thumb = Some(val);
        self
    }

    /// Document caption (may also be used when resending documents by
    /// `file_id`), 0-1024 characters.
    pub fn caption<T>(mut self, val: T) -> Self
    where
        T: Into<String>,
    {
        self.caption = Some(val.into());
        self
    }

    /// Send [Markdown] or [HTML], if you want Telegram apps to show
    /// [bold, italic, fixed-width text or inline URLs] in the media caption.
    ///
    /// [Markdown]: crate::types::ParseMode::Markdown
    /// [HTML]: crate::types::ParseMode::HTML
    /// [bold, italic, fixed-width text or inline URLs]:
    /// crate::types::ParseMode
    pub fn parse_mode(mut self, val: ParseMode) -> Self {
        self.parse_mode = Some(val);
        self
    }

    /// Sends the message [silently]. Users will receive a notification with no
    /// sound.
    ///
    /// [silently]: https://telegram.org/blog/channels-2-0#silent-messages
    pub fn disable_notification(mut self, val: bool) -> Self {
        self.disable_notification = Some(val);
        self
    }

    /// If the message is a reply, ID of the original message.
    pub fn reply_to_message_id(mut self, val: i32) -> Self {
        self.reply_to_message_id = Some(val);
        self
    }

    /// Additional interface options.
    pub fn reply_markup(mut self, val: ReplyMarkup) -> Self {
        self.reply_markup = Some(val);
        self
    }
}