If the argument isn't an ID, use fzf to find an ID

Signed-off-by: Oliver Davies <oliver@oliverdavies.uk>

internal/lib/ansi.go

@@ -0,0 +1,9 @@
+package lib
+
+import "regexp"
+
+var ansiRegex = regexp.MustCompile(`\x1b\[[0-9;]*m`)
+
+func StripANSI(s string) string {
+	return ansiRegex.ReplaceAllString(s, "")
+}

internal/lib/fzf.go

@@ -0,0 +1,34 @@
+package lib
+
+import (
+	"bytes"
+	"os"
+	"os/exec"
+	"strings"
+)
+
+func SelectWithFzf(items []string) (string, error) {
+	cmd := exec.Command("fzf", "--ansi")
+
+	var input bytes.Buffer
+
+	for _, item := range items {
+		input.WriteString(item + "\n")
+	}
+
+	cmd.Stdin = &input
+
+	var output bytes.Buffer
+	cmd.Stdout = &output
+	cmd.Stderr = os.Stderr
+
+	err := cmd.Run()
+
+	if err != nil {
+		return "", err
+	}
+
+	selected := strings.TrimSpace(output.String())
+
+	return selected, nil
+}

internal/lib/json.go

@@ -3,13 +3,10 @@ package lib
 import (
 	"encoding/json"
 	"fmt"
-	"regexp"
 	"strconv"
 	"strings"
 )
 
-var ansiRegex = regexp.MustCompile(`\x1b\[[0-9;]*m`)
-
 type Item struct {
 	ID    int    `json:"id"`
 	Title string `json:"title"`
@@ -19,7 +16,7 @@ func AsJSON(zets []string) (string, error) {
 	var items []Item
 
 	for _, entry := range zets {
-		cleanEntry := stripANSI(entry)
+		cleanEntry := StripANSI(entry)
 		parts := strings.SplitN(cleanEntry, " ", 2)
 
 		id, _ := strconv.Atoi(parts[0])
@@ -42,7 +39,3 @@ func AsJSON(zets []string) (string, error) {
 
 	return string(jsonData), nil
 }
-
-func stripANSI(s string) string {
-	return ansiRegex.ReplaceAllString(s, "")
-}