//go:build mage

package main

import (
	"fmt"
	"os"

	"github.com/magefile/mage/sh"
)

const (
	configFile          string = "./config/services.json"
	rootBuildDir        string = "./build"
	templateExtension   string = ".gotmpl"
	rootTemplatesDir    string = "./templates"
)

// Clean cleans the workspace.
func Clean() error {
	buildDir := "./build"

	objects, err := os.ReadDir(buildDir)
	if err != nil {
		return err
	}

	for i := range objects {
		name := objects[i].Name()

		if name != ".gitkeep" {
			if err := sh.Rm(buildDir + "/" + name); err != nil {
				return err
			}
		}
	}

	return nil
}

// Render renders the template files.
func Render(name string) error {
	cfg, err := newConfig(configFile)
	if err != nil {
		return fmt.Errorf("unable to load the configuration; %v", err)
	}

	if err := render(cfg, name); err != nil {
		return fmt.Errorf("an error occurred whilst rendering the templates; %v", err)
	}

	return nil
}

// Deploy deploys the services to the Flow Platform.
func Deploy(name string) error {
	cfg, err := newConfig(configFile)
	if err != nil {
		return fmt.Errorf("unable to load the configuration; %v", err)
	}

	os.Setenv("DOCKER_HOST", cfg.DockerHost)

	return sh.Run(
		"docker",
		"compose",
		"--project-directory",
		rootBuildDir+"/compose",
		"up",
		"-d",
		"--build",
		name,
	)
}

// DownloadForgejo downloads the Forgejo binary from Codeberg.
func DownloadForgejo() error {
	cfg, err := newConfig(configFile)
	if err != nil {
		return fmt.Errorf("unable to load the configuration; %v", err)
	}

	version := cfg.Forgejo.Version

	if err := downloadForgejo(version); err != nil {
		return fmt.Errorf("unable to download Forgejo %s; %w", version, err)
	}

	return nil
}