concord 2.1.2

A terminal user interface client for Discord
Documentation 
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use crate::discord::AppCommand;

use super::scroll::{clamp_selected_index, move_index_down, move_index_up};
use super::{DashboardState, PollVotePickerItem, PollVotePickerState};

impl DashboardState {
    pub fn is_poll_vote_picker_open(&self) -> bool {
        self.popups.poll_vote_picker.is_some()
    }

    pub fn poll_vote_picker_items(&self) -> Option<&[PollVotePickerItem]> {
        self.popups
            .poll_vote_picker
            .as_ref()
            .map(PollVotePickerState::answers)
    }

    pub fn close_poll_vote_picker(&mut self) {
        self.popups.poll_vote_picker = None;
    }

    pub fn move_poll_vote_picker_down(&mut self) {
        if let Some(picker) = &mut self.popups.poll_vote_picker {
            move_index_down(&mut picker.selected, picker.answers.len());
        }
    }

    pub fn move_poll_vote_picker_up(&mut self) {
        if let Some(picker) = &mut self.popups.poll_vote_picker {
            move_index_up(&mut picker.selected);
        }
    }

    pub fn toggle_selected_poll_vote_answer(&mut self) {
        if let Some(picker) = &mut self.popups.poll_vote_picker {
            let index = clamp_selected_index(picker.selected, picker.answers.len());
            toggle_poll_answer_selection(picker, index);
        }
    }

    pub fn toggle_poll_vote_answer_shortcut(&mut self, shortcut: char) {
        let shortcut = shortcut.to_ascii_lowercase();
        let key_bindings = self.options.key_bindings().clone();
        let Some(picker) = &mut self.popups.poll_vote_picker else {
            return;
        };
        let Some(index) = picker
            .answers
            .iter()
            .enumerate()
            .position(|(index, _)| key_bindings.indexed_shortcut(index) == Some(shortcut))
        else {
            return;
        };
        picker.selected = index;
        toggle_poll_answer_selection(picker, index);
    }

    pub fn selected_poll_vote_picker_index(&self) -> Option<usize> {
        self.popups
            .poll_vote_picker
            .as_ref()
            .map(|picker| clamp_selected_index(picker.selected, picker.answers.len()))
    }

    pub fn activate_poll_vote_picker(&mut self) -> Option<AppCommand> {
        let picker = self.popups.poll_vote_picker.clone()?;
        let answer_ids = picker
            .answers
            .iter()
            .filter(|answer| answer.selected)
            .map(|answer| answer.answer_id)
            .collect::<Vec<_>>();
        self.close_poll_vote_picker();
        Some(AppCommand::VotePoll {
            channel_id: picker.channel_id,
            message_id: picker.message_id,
            answer_ids,
        })
    }

    pub(super) fn open_poll_vote_picker(&mut self) {
        if let Some(message) = self.selected_message_state()
            && let Some(poll) = &message.poll
        {
            self.popups.poll_vote_picker = Some(PollVotePickerState {
                selected: 0,
                allow_multiselect: poll.allow_multiselect,
                channel_id: message.channel_id,
                message_id: message.id,
                answers: normalized_poll_vote_picker_answers(
                    poll.allow_multiselect,
                    poll.answers
                        .iter()
                        .map(|answer| PollVotePickerItem {
                            answer_id: answer.answer_id,
                            label: answer.text.clone(),
                            selected: answer.me_voted,
                        })
                        .collect(),
                ),
            });
        }
    }
}

fn normalized_poll_vote_picker_answers(
    allow_multiselect: bool,
    mut answers: Vec<PollVotePickerItem>,
) -> Vec<PollVotePickerItem> {
    if allow_multiselect {
        return answers;
    }

    let mut seen_selected = false;
    for answer in &mut answers {
        if answer.selected && seen_selected {
            answer.selected = false;
        }
        seen_selected |= answer.selected;
    }
    answers
}

fn toggle_poll_answer_selection(picker: &mut PollVotePickerState, index: usize) {
    if picker.allow_multiselect {
        if let Some(answer) = picker.answers.get_mut(index) {
            answer.selected = !answer.selected;
        }
        return;
    }

    let was_selected = picker
        .answers
        .get(index)
        .is_some_and(|answer| answer.selected);
    for answer in &mut picker.answers {
        answer.selected = false;
    }
    if !was_selected && let Some(answer) = picker.answers.get_mut(index) {
        answer.selected = true;
    }
}