make term return strings instead of writing directly

cmd/cli/cli.go

@@ -5,6 +5,7 @@ import (
 	"math/rand"
 	"time"
 
+	"github.com/taigrr/gico/commits"
 	"github.com/taigrr/gico/gitgraph/term"
 )
 
@@ -13,19 +14,24 @@ func init() {
 }
 
 func main() {
-	freq := []int{}
+	wfreq := []int{}
+	yd := time.Now().YearDay()
+	freq, _ := commits.GlobalFrequency(time.Now().Year(), []string{""})
+	if yd < 7 {
+		//	xfreq, _ := commits.GlobalFrequency(time.Now().Year()-1, []string{""})
+	} else {
+		// TODO fix bug for negative in first week of Jan
 		for i := 0; i < 7; i++ {
-		freq = append(freq, rand.Int())
+			d := time.Now().YearDay() - 1 - 6 + i
+			wfreq = append(wfreq, freq[d])
+		}
 	}
 	fmt.Println("week:")
-	term.GetWeekUnicode(freq)
+	fmt.Println(term.GetWeekUnicode(wfreq))
 	fmt.Println()
 	fmt.Println()
 	fmt.Println()
-	freq = []int{}
-	for i := 0; i < 365; i++ {
-		freq = append(freq, rand.Int())
-	}
+	freq, _ = commits.GlobalFrequency(time.Now().Year(), []string{""})
 	fmt.Println("year:")
-	term.GetYearUnicode(freq)
+	fmt.Println(term.GetYearUnicode(freq))
 }

gitgraph/term/term.go

@@ -1,7 +1,6 @@
 package term
 
 import (
-	"fmt"
 	"os"
 	"strings"
 	"sync"
@@ -17,28 +16,30 @@ var (
 	colorScheme  []sc.SimpleColor
 )
 
-func GetWeekUnicode(frequencies []int) {
+func GetWeekUnicode(frequencies []int) string {
 	squareColors := []sc.SimpleColor{}
 	min, max := common.MinMax(frequencies)
 	for _, f := range frequencies {
 		squareColors = append(squareColors, common.ColorForFrequency(f, min, max))
 	}
-	drawWeekUnicode(squareColors)
+	return drawWeekUnicode(squareColors)
 }
 
-func drawWeekUnicode(c []sc.SimpleColor) {
+func drawWeekUnicode(c []sc.SimpleColor) string {
 	// o := termenv.NewOutput(os.Stdout)
+	s := strings.Builder{}
 	o := termenv.NewOutputWithProfile(os.Stdout, termenv.TrueColor)
 	for w, color := range c {
 		style := o.String(block).Foreground(termenv.TrueColor.Color(color.ToHex()))
-		fmt.Print(style.String())
+		s.WriteString(style.String())
 		//	termenv.SetForegroundColor(termenv.ForegroundColor())
 		if w == len(c)-1 {
-			fmt.Println()
+			s.WriteString("\n")
 		} else {
-			fmt.Print(" ")
+			s.WriteString(" ")
 		}
 	}
+	return s.String()
 }
 
 func GetYearUnicode(frequencies []int) string {