package main

import (
	"fmt"
	"io/fs"
	"os"

	"website/internal/builder"
	"website/internal/log"

	"github.com/BurntSushi/toml"
	"github.com/ardanlabs/conf/v3"
	"github.com/pkg/errors"
)

func main() {
	ioConfig := builder.IOConfig{}
	if help, err := conf.Parse("", &ioConfig); err != nil {
		if errors.Is(err, conf.ErrHelpWanted) {
			fmt.Println(help)
			os.Exit(1)
		}
		panic("error parsing configuration: " + err.Error())
	}
	log.Configure(!ioConfig.Development)

	log.Debug("starting build process")
	if ioConfig.Source != "." {
		err := os.Chdir(ioConfig.Source)
		if err != nil {
			log.Panic("could not change to source directory")
		}
	}

	if err := builder.BuildSite(ioConfig); err != nil {
		switch cause := errors.Cause(err).(type) {
		case *fs.PathError:
			log.Error("path error", "error", err)
		case toml.ParseError:
			log.Info("parse error", "error", err)
		default:
			log.Info("other error", "error", err, "cause", errors.Cause(cause))
		}
		os.Exit(1)
	}
}