quiz part 1 (#17)

Author: ehernandez-xk

students/ehernandez/main.go

@@ -0,0 +1,85 @@
+package main
+
+import (
+	"encoding/csv"
+	"flag"
+	"fmt"
+	"os"
+)
+
+type quiz struct {
+	total     int
+	correct   int
+	incorrect int
+	items     []*item
+}
+type item struct {
+	question string
+	answer   string
+	got      string
+	correct  bool
+}
+
+func main() {
+	file := flag.String("file", "problems.csv", "file to parse the quiz")
+	flag.Parse()
+	qz, err := load(*file)
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+	start(qz)
+	score(qz)
+
+}
+
+// load loads the values of the file and return a new quiz
+func load(file string) (*quiz, error) {
+	f, err := os.OpenFile(file, os.O_RDONLY, 0666)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	r := csv.NewReader(f)
+	all, err := r.ReadAll()
+	if err != nil {
+		return nil, err
+	}
+	qz := new(quiz)
+	qz.total = len(all)
+
+	for _, items := range all {
+		i := item{question: items[0], answer: items[1]}
+		qz.items = append(qz.items, &i)
+	}
+	return qz, nil
+}
+
+// score prints the quiz score
+func score(qz *quiz) {
+	fmt.Printf("total: %v correct: %v incorrect: %v\n", qz.total, qz.correct, qz.incorrect)
+	fmt.Println("Incorrect questions")
+	for _, q := range qz.items {
+		if !q.correct {
+			fmt.Printf("%v answer: %v got: %v\n", q.question, q.answer, q.got)
+		}
+	}
+}
+
+// start starts the quiz
+func start(qz *quiz) {
+	fmt.Printf("interactive mode (%v questions in quiz)\n", qz.total)
+	for i, item := range qz.items {
+		var op = ""
+		fmt.Printf("%v) %v?: ", i+1, item.question)
+		fmt.Scanln(&op)
+		item.got = op
+		if op == item.answer {
+			qz.correct++
+			item.correct = true
+			continue
+		}
+		qz.incorrect++
+	}
+}

students/ehernandez/p2.csv

@@ -0,0 +1,4 @@
+2x2,4
+5x6,30
+8x2,16
+9x6,54

students/ehernandez/problems.csv

@@ -0,0 +1,13 @@
+5+5,10
+7+3,10
+1+1,2
+8+3,11
+1+2,3
+8+6,14
+3+1,4
+1+4,5
+5+1,6
+2+3,5
+3+3,6
+2+4,6
+5+2,7