romance-core 0.2.5

Core library for Romance CLI code generation
Documentation 
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use crate::addon::Addon;
use anyhow::Result;
use std::path::Path;

pub struct ValidationAddon;

impl Addon for ValidationAddon {
    fn name(&self) -> &str {
        "validation"
    }

    fn check_prerequisites(&self, project_root: &Path) -> Result<()> {
        super::check_romance_project(project_root)
    }

    fn is_already_installed(&self, project_root: &Path) -> bool {
        project_root
            .join("backend/src/validation.rs")
            .exists()
    }

    fn install(&self, project_root: &Path) -> Result<()> {
        install_validation(project_root)
    }

    fn uninstall(&self, project_root: &Path) -> Result<()> {
        use colored::Colorize;

        println!("{}", "Uninstalling validation...".bold());

        // Delete files
        if super::remove_file_if_exists(&project_root.join("backend/src/validation.rs"))? {
            println!("  {} backend/src/validation.rs", "delete".red());
        }

        // Remove mod declaration from main.rs
        super::remove_mod_from_main(project_root, "validation")?;

        // Remove feature flag
        super::remove_feature_flag(project_root, "validation")?;

        // Regenerate AI context
        crate::ai_context::regenerate(project_root).ok();

        println!();
        println!("{}", "Validation uninstalled successfully.".green().bold());

        Ok(())
    }
}

fn install_validation(project_root: &Path) -> Result<()> {
    use crate::template::TemplateEngine;
    use crate::utils;
    use colored::Colorize;
    use tera::Context;

    println!("{}", "Installing validation...".bold());

    let engine = TemplateEngine::new()?;
    let ctx = Context::new();

    // Generate validation middleware
    let content = engine.render("addon/validation/validate_middleware.rs.tera", &ctx)?;
    utils::write_file(
        &project_root.join("backend/src/validation.rs"),
        &content,
    )?;
    println!("  {} backend/src/validation.rs", "create".green());

    // Add mod declaration to main.rs
    super::add_mod_to_main(project_root, "validation")?;

    // Add validator dependencies to Cargo.toml
    crate::generator::auth::insert_cargo_dependency(
        &project_root.join("backend/Cargo.toml"),
        &[
            ("validator", r#"{ version = "0.19", features = ["derive"] }"#),
        ],
    )?;

    // Update romance.toml features
    super::update_feature_flag(project_root, "validation", true)?;

    println!();
    println!("{}", "Validation installed successfully!".green().bold());
    println!("  Entity fields now support validation rules: name:string[min=3,max=100]");

    Ok(())
}