package main

import (
	"flag"
	"fmt"
	"io/ioutil"
	"log"

	"antoine-roux.ml/projects/go/dijkstra/internal"
	"github.com/hashicorp/hcl/v2"
	"github.com/hashicorp/hcl/v2/gohcl"
	"github.com/hashicorp/hcl/v2/hclsyntax"
)

func main() {
	filename := flag.String("i", "-", "Input file use to generate graph")
	flag.Parse()

	src, err := ioutil.ReadFile(*filename)
	if err != nil {
		log.Fatalln(err)
	}

	file, diags := hclsyntax.ParseConfig(src, *filename, hcl.Pos{Line: 1, Column: 1})
	if diags.HasErrors() {
		log.Fatalf("config parse: %s", fmt.Errorf("%w", diags))
	}

	graph := &internal.Graph{}

	diags = gohcl.DecodeBody(file.Body, nil, graph)
	if diags.HasErrors() {
		log.Fatalf("config parse: %s", fmt.Errorf("%w", diags))
	}

	fmt.Printf("%#v\n", *graph)
	for _, p := range graph.Nodes {
		fmt.Printf("%+v\n", p)
	}
}