homeboy 0.76.0

CLI for multi-component deployment and development workflow automation
Documentation 
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//! Entity suggestion utilities for unrecognized CLI subcommands.

use homeboy::engine::text::levenshtein;
use homeboy::{component, extension, project, server};

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum EntityType {
    Component,
    Project,
    Server,
    Extension,
}

impl EntityType {
    pub fn label(&self) -> &'static str {
        match self {
            EntityType::Component => "component",
            EntityType::Project => "project",
            EntityType::Server => "server",
            EntityType::Extension => "extension",
        }
    }
}

#[derive(Debug, Clone)]
pub struct EntityMatch {
    pub entity_type: EntityType,
    pub entity_id: String,
    pub exact: bool,
}

pub fn find_entity_match(input: &str) -> Option<EntityMatch> {
    let input_lower = input.to_lowercase();

    if let Ok(ids) = component::list_ids() {
        if let Some(m) = find_match_in_list(&input_lower, &ids) {
            return Some(EntityMatch {
                entity_type: EntityType::Component,
                entity_id: m.0,
                exact: m.1,
            });
        }
    }
    if let Ok(ids) = project::list_ids() {
        if let Some(m) = find_match_in_list(&input_lower, &ids) {
            return Some(EntityMatch {
                entity_type: EntityType::Project,
                entity_id: m.0,
                exact: m.1,
            });
        }
    }
    if let Ok(servers) = server::list() {
        let ids: Vec<String> = servers.into_iter().map(|s| s.id).collect();
        if let Some(m) = find_match_in_list(&input_lower, &ids) {
            return Some(EntityMatch {
                entity_type: EntityType::Server,
                entity_id: m.0,
                exact: m.1,
            });
        }
    }
    let extension_ids = extension::available_extension_ids();
    if let Some(m) = find_match_in_list(&input_lower, &extension_ids) {
        return Some(EntityMatch {
            entity_type: EntityType::Extension,
            entity_id: m.0,
            exact: m.1,
        });
    }
    None
}

fn find_match_in_list(input_lower: &str, ids: &[String]) -> Option<(String, bool)> {
    for id in ids {
        if id.to_lowercase() == *input_lower {
            return Some((id.clone(), true));
        }
    }
    for id in ids {
        if id.to_lowercase().starts_with(input_lower) {
            return Some((id.clone(), false));
        }
    }
    for id in ids {
        if id.to_lowercase().ends_with(input_lower) {
            return Some((id.clone(), false));
        }
    }
    for id in ids {
        let dist = levenshtein(input_lower, &id.to_lowercase());
        if dist <= 3 && dist > 0 {
            return Some((id.clone(), false));
        }
    }
    None
}

pub fn generate_entity_hints(
    entity_match: &EntityMatch,
    parent_command: &str,
    unrecognized: &str,
) -> Vec<String> {
    let id = &entity_match.entity_id;
    let entity_label = entity_match.entity_type.label();
    let mut hints = Vec::new();

    if !entity_match.exact {
        hints.push(format!("Did you mean {} '{}' ?", entity_label, id).replace("' ?", "'?"));
    }

    match parent_command {
        "changelog" => hints.push(format!(
            "'{}' matches {} '{}'. Try: homeboy changelog show {}",
            unrecognized, entity_label, id, id
        )),
        "version" => hints.push(format!(
            "'{}' matches {} '{}'. Try: homeboy version show {}",
            unrecognized, entity_label, id, id
        )),
        "build" => hints.push(format!(
            "'{}' matches {} '{}'. Run: homeboy build {}",
            unrecognized, entity_label, id, id
        )),
        "deploy" => hints.push(format!(
            "'{}' matches {} '{}'. Try: homeboy deploy --component {}",
            unrecognized, entity_label, id, id
        )),
        "changes" => hints.push(format!(
            "'{}' matches {} '{}'. Try: homeboy changes show {}",
            unrecognized, entity_label, id, id
        )),
        "git" => hints.push(format!(
            "'{}' matches {} '{}'. Try: homeboy git {} status",
            unrecognized, entity_label, id, id
        )),
        "release" => hints.push(format!(
            "'{}' matches {} '{}'. Try: homeboy release {}",
            unrecognized, entity_label, id, id
        )),
        _ => hints.push(format!(
            "'{}' matches {} '{}'. Try: homeboy {} {}",
            unrecognized, entity_label, id, entity_label, id
        )),
    }

    hints
}