Method complete

crates/chat-cli/src/cli/chat/prompt.rs:293–324

(
        &self,
        line: &str,
        pos: usize,
        _ctx: &Context<'_>,
    )

    type Candidate = String;

    fn complete(
        &self,
        line: &str,
        pos: usize,
        _ctx: &Context<'_>,
    ) -> Result<(usize, Vec<Self::Candidate>), ReadlineError> {
        let (start, word) = extract_word(line, pos, None, |c| c.is_space());

        // Handle command completion
        if word.starts_with('/') {
            return Ok(complete_command(self.available_commands.clone(), word, start));
        }

        if line.starts_with('@') {
            let search_word = line.strip_prefix('@').unwrap_or("");
            if let Ok(completions) = self.prompt_completer.complete_prompt(search_word) {
                if !completions.is_empty() {
                    return Ok((0, completions));
                }
            }
        }

        // Handle file path completion as fallback
        if let Ok((pos, completions)) = self.path_completer.complete_path(line, pos, _ctx) {
            if !completions.is_empty() {
                return Ok((pos, completions));
            }
        }

        // Default: no completions
        Ok((start, Vec::new()))
    }
}

/// Custom hinter that provides shadowtext suggestions