import (
	"bufio"
	"fmt"
	"os"
	"strings"
)

type Resource struct {
	property, path string
}

func ReadConfig(configPath string) ([]Resource, error) {
	file, err := os.Open(configPath)
	if err != nil {
		return nil, err
	}
	defer file.Close()

	// Maps the relation between ICOMMAND and the respective file path
	properties := map[string]int{
		"texture": 2,
		"mmodel": 1,
		"mapsound": 1,
		"skybox": 1,
		"exec": 1,
		"cloudlayer": 1,
	}
	resources := make([]Resource, 0)
	scanner := bufio.NewScanner(file)

	for scanner.Scan() {
		line := scanner.Text()
		fields := strings.Split(line, " ")
		property := fields[0]

		if index, ok := properties[property]; ok {
			resources = append(resources, Resource{property, fields[index]})
		}
	}

	if err := scanner.Err(); err != nil {
		return nil, err
	}
	return resources, nil
}