Working version of egor case

Author: Eroui

commands/case.go

@@ -5,7 +5,10 @@ import (
 	"github.com/fatih/color"
 	"github.com/urfave/cli/v2"
 	"fmt"
-    "os"
+	"os"
+	"github.com/chermehdi/egor/config"
+	"path"
+	"strconv"
 )
 
 func readFromStdin() ([]string, error) {
@@ -22,7 +25,7 @@ func readFromStdin() ([]string, error) {
 		lines = append(lines, line)
 	}
 
-	// TODO add check for errors
+	// TODO(Eroui) add check for errors
 	return lines, nil
 }
 
@@ -42,19 +45,46 @@ func writeLinesToFile(filename string, lines []string) {
     }
 }
 
-
 // TODO(Eroui): add checks on errors
 func CustomCaseAction(context *cli.Context) error {
 	color.Green("Creating Custom Test Case...")
 
+	// Load meta data 
+	cwd, err := os.Getwd()
+	if err != nil {
+		return err
+	}
+
+	meta_data, err := config.LoadMetaFromPath(path.Join(cwd, "egor-meta.json"))
+	if err != nil {
+		return err
+	}
+
 	color.Green("Provide your input:")
 	input_lines, _ := readFromStdin()
 
 	color.Green("Provide your output:")
 	output_lines, _ := readFromStdin()
+	
+	case_name := "test-" + strconv.Itoa(len(meta_data.Inputs))
 
-	writeLinesToFile("sample.in", input_lines)
-	writeLinesToFile("sample.out", output_lines)
+	input_file_name := case_name + ".in"
+	output_file_name := case_name + ".out"
+
+	writeLinesToFile("inputs/" + input_file_name, input_lines)
+	writeLinesToFile("outputs/" + output_file_name, output_lines)
+
+	input_file := config.NewIoFile(input_file_name, "inputs/" + input_file_name, true)
+	output_file := config.NewIoFile(input_file_name, "outputs/" + output_file_name, true)
+
+	meta_data.Inputs = append(meta_data.Inputs, input_file)
+	meta_data.Outputs = append(meta_data.Outputs, output_file)
+
+	meta_data.SaveToFile(path.Join(cwd, "egor-meta.json"))
+	
+	if err != nil {
+		fmt.Println(err)
+	}
 
 	color.Green("Created Custom Test Case...")
 	return nil

config/meta.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"io"
 	"path"
+	"os"
 )
 
 type IoFile struct {
@@ -88,9 +89,37 @@ func (egor *EgorMeta) Save(w io.Writer) error {
 	return err
 }
 
+func (egor *EgorMeta) SaveToFile(file_path string) error {
+	file, _ := CreateFile(file_path)
+	return egor.Save(file)
+}
+
 // TODO(chermehdi): probably this should't be a member function
 func (egor *EgorMeta) Load(r io.Reader) error {
 	decoder := json2.NewDecoder(r)
 	err := decoder.Decode(egor)
 	return err
 }
+
+func LoadMeta(r io.Reader) (EgorMeta, error) {
+  var egor_meta EgorMeta
+  decoder := json2.NewDecoder(r)
+  err := decoder.Decode(&egor_meta)
+  return egor_meta, err
+}
+
+func LoadMetaFromPath(file_path string) (EgorMeta, error) {
+	file, _ := OpenFileFromPath(file_path)
+	return LoadMeta(file)
+}
+
+// TODO(Eroui): this is a duplicate function from parse.go
+// consider moving this somewhere common or use the other one
+func CreateFile(filePath string) (*os.File, error) {
+	return os.OpenFile(filePath, os.O_TRUNC|os.O_CREATE|os.O_WRONLY, 0777)
+}
+
+func OpenFileFromPath(filePath string) (*os.File, error) {
+	file, err := os.Open(filePath)
+	return file, err
+}