bcode_tui 0.0.1-alpha.0

Terminal user interface for bcode
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//! Pending submission collection for TUI app state.

use super::pending_submission::PendingSubmission;

/// Pending submissions plus currently staged text.
#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct PendingSubmissions {
    items: Vec<PendingSubmission>,
    staged: Option<String>,
    revision: u64,
}

impl PendingSubmissions {
    /// Return pending submissions that have not been committed by the session stream.
    #[must_use]
    pub fn items(&self) -> &[PendingSubmission] {
        &self.items
    }

    /// Return revision for layout-affecting pending submission changes.
    #[must_use]
    pub const fn revision(&self) -> u64 {
        self.revision
    }

    /// Stage text as an in-flight submission.
    pub fn stage(&mut self, text: String) {
        self.staged = Some(text.clone());
        self.items.push(PendingSubmission::new(text));
        self.bump_revision();
    }

    /// Take the currently staged submission.
    pub fn take_staged(&mut self) -> String {
        self.staged.take().unwrap_or_default()
    }

    /// Clear the staged submission if it matches handled text.
    pub fn clear_staged_if(&mut self, text: &str) {
        if self.staged.as_deref() == Some(text) {
            self.staged = None;
        }
    }

    /// Mark the oldest pending submission as queued.
    pub fn mark_first_queued(&mut self, queue_position: Option<u32>) {
        if let Some(pending) = self.items.first_mut() {
            pending.mark_queued(queue_position);
            self.bump_revision();
        }
    }

    /// Mark the oldest pending submission as sent.
    pub fn mark_first_sent(&mut self) {
        if let Some(pending) = self.items.first_mut() {
            pending.mark_sent();
            self.bump_revision();
        }
    }

    /// Supersede positioning from submissions preceding manual navigation.
    pub fn cancel_reveals(&mut self) {
        for pending in &mut self.items {
            pending.cancel_reveal();
        }
    }

    /// Whether the first matching submission still owns its acceptance reveal.
    #[must_use]
    pub fn reveals_on_acceptance(&self, text: &str) -> bool {
        self.items
            .iter()
            .find(|pending| pending.text() == text)
            .is_some_and(PendingSubmission::reveals_on_acceptance)
    }

    /// Reconcile an authoritative acceptance by identity.
    pub fn remove_id(&mut self, id: &bcode_session_models::SubmissionId) {
        self.items.retain(|item| item.id() != id);
        self.bump_revision();
    }

    /// Remove a pending submission by text.
    pub fn remove(&mut self, text: &str) {
        if let Some(index) = self.items.iter().position(|pending| pending.text() == text) {
            self.items.remove(index);
            self.bump_revision();
        }
    }

    const fn bump_revision(&mut self) {
        self.revision = self.revision.saturating_add(1);
    }
}