use crate::{
    prelude::Requester,
    requests::HasPayload,
    types::{ChatId, InputFile, ParseMode, *},
};

/// Default parse mode adaptor, see
/// [`RequesterExt::parse_mode`](crate::requests::RequesterExt::parse_mode).
pub struct DefaultParseMode<B> {
    bot: B,
    mode: ParseMode,
}

impl<B> DefaultParseMode<B> {
    /// Creates new [`DefaultParseMode`].
    ///
    /// Note: it's recommended to use [`RequesterExt::parse_mode`] instead.
    ///
    /// [`RequesterExt::parse_mode`]: crate::requests::RequesterExt::parse_mode
    pub fn new(bot: B, parse_mode: ParseMode) -> Self {
        Self {
            bot,
            mode: parse_mode,
        }
    }

    /// Allows to access the inner bot.
    pub fn inner(&self) -> &B {
        &self.bot
    }

    /// Unwraps the inner bot.
    pub fn into_inner(self) -> B {
        self.bot
    }
}

macro_rules! f {
    ($m:ident $this:ident ($($arg:ident : $T:ty),*)) => {
        {
            let mut req = $this.inner().$m($($arg),*);
            req.payload_mut().parse_mode = Some($this.mode);
            req
        }
    };
}

macro_rules! fty {
    ($T:ident) => {
        B::$T
    };
}

macro_rules! fid {
    ($m:ident $this:ident ($($arg:ident : $T:ty),*)) => {
        $this.inner().$m($($arg),*)
    };
}

impl<B: Requester> Requester for DefaultParseMode<B> {
    type Err = B::Err;

    requester_forward! {
        send_message,
        send_photo,
        send_video,
        send_audio,
        send_document,
        send_animation,
        send_voice,
        edit_message_text,
        edit_message_text_inline,
        edit_message_caption,
        edit_message_caption_inline => f, fty
    }

    type SendPoll = B::SendPoll;

    fn send_poll<C, Q, O>(
        &self,
        chat_id: C,
        question: Q,
        options: O,
        type_: PollType,
    ) -> Self::SendPoll
    where
        C: Into<ChatId>,
        Q: Into<String>,
        O: IntoIterator<Item = String>,
    {
        let mut req = self.inner().send_poll(chat_id, question, options, type_);
        req.payload_mut().explanation_parse_mode = Some(self.mode);
        req
    }

    requester_forward! {
        get_me, log_out, close, get_updates, set_webhook, delete_webhook, get_webhook_info,
        forward_message, copy_message, send_video_note, send_media_group, send_location,
        edit_message_live_location, edit_message_live_location_inline,
        stop_message_live_location, stop_message_live_location_inline, send_venue,
        send_contact, send_dice, send_chat_action, get_user_profile_photos,
        get_file, kick_chat_member, unban_chat_member, restrict_chat_member,
        promote_chat_member, set_chat_administrator_custom_title, set_chat_permissions,
        export_chat_invite_link, create_chat_invite_link, edit_chat_invite_link,
        revoke_chat_invite_link, set_chat_photo, delete_chat_photo, set_chat_title,
        set_chat_description, pin_chat_message, unpin_chat_message, unpin_all_chat_messages,
        leave_chat, get_chat, get_chat_administrators, get_chat_members_count,get_chat_member,
        set_chat_sticker_set, delete_chat_sticker_set, answer_callback_query,
        set_my_commands, get_my_commands, answer_inline_query,
        edit_message_media, edit_message_media_inline, edit_message_reply_markup,
        edit_message_reply_markup_inline, stop_poll, delete_message, send_sticker,
        get_sticker_set, upload_sticker_file, create_new_sticker_set,
        add_sticker_to_set, set_sticker_position_in_set, delete_sticker_from_set,
        set_sticker_set_thumb, send_invoice, answer_shipping_query,
        answer_pre_checkout_query, set_passport_data_errors, send_game,
        set_game_score, set_game_score_inline, get_game_high_scores,
        get_updates_fault_tolerant => fid, fty
    }
}

download_forward! {
    'w
    B
    DefaultParseMode<B>
    { this => this.inner() }
}
