//go:build mage

package main

import (
	"fmt"
	"os"
	"path/filepath"
	"text/template"
)

// Bashprofile manages the user's Bash Profile using their configuration and the Bash Profile template.
func Bashprofile() error {
	const (
		bashProfileTemplateFile string = "bash/profile.gotmpl"
		managedBashProfile      string = "managed/bash_profile"
		defaultFilename         string = ".bash_profile"
	)

	homeDirectory, err := os.UserHomeDir()
	if err != nil {
		return fmt.Errorf("unable to get the user's home configuration directory: %w", err)
	}

	config, err := newConfig()
	if err != nil {
		return fmt.Errorf("unable to load the configuration: %w", err)
	}

	if !config.BashProfile.Manage {
		return nil
	}

	funcMap := template.FuncMap{
		"env": env,
	}

	if err := renderTemplate(config, bashProfileTemplateFile, managedBashProfile, funcMap); err != nil {
		return fmt.Errorf("unable to generate the Bash Profile: %w", err)
	}

	filename := config.BashProfile.Filename
	if filename == "" {
		filename = defaultFilename
	}

	symlinkPath := filepath.Join(homeDirectory, filename)

	if err := ensureSymlink(managedBashProfile, symlinkPath); err != nil {
		return err
	}

	return nil
}