bridges: massive refactor

- automatic flag validation and warning
- generalized prompt
- cleanups

1 files changed, 179 insertions, 3 deletions

diff --git a/input/prompt.go b/input/prompt.go
index 960ecd62..2093695f 100644
--- a/input/prompt.go
+++ b/input/prompt.go
@@ -2,14 +2,20 @@ package input
 
 import (
 	"bufio"
+	"errors"
 	"fmt"
+	"net/url"
 	"os"
+	"sort"
 	"strconv"
 	"strings"
 	"syscall"
+	"time"
 
 	"golang.org/x/crypto/ssh/terminal"
 
+	"github.com/MichaelMure/git-bug/bridge/core/auth"
+	"github.com/MichaelMure/git-bug/util/colors"
 	"github.com/MichaelMure/git-bug/util/interrupt"
 )
 
@@ -26,11 +32,27 @@ func Required(name string, value string) (string, error) {
 	return "", nil
 }
 
+// IsURL is a validator checking that the value is a fully formed URL
+func IsURL(name string, value string) (string, error) {
+	u, err := url.Parse(value)
+	if err != nil {
+		return fmt.Sprintf("%s is invalid: %v", name, err), nil
+	}
+	if u.Scheme == "" {
+		return fmt.Sprintf("%s is missing a scheme", name), nil
+	}
+	if u.Host == "" {
+		return fmt.Sprintf("%s is missing a host", name), nil
+	}
+	return "", nil
+}
+
 func Prompt(prompt, name string, validators ...PromptValidator) (string, error) {
 	return PromptDefault(prompt, name, "", validators...)
 }
 
 func PromptDefault(prompt, name, preValue string, validators ...PromptValidator) (string, error) {
+loop:
 	for {
 		if preValue != "" {
 			_, _ = fmt.Fprintf(os.Stderr, "%s [%s]: ", prompt, preValue)
@@ -56,7 +78,7 @@ func PromptDefault(prompt, name, preValue string, validators ...PromptValidator)
 			}
 			if complaint != "" {
 				_, _ = fmt.Fprintln(os.Stderr, complaint)
-				continue
+				continue loop
 			}
 		}
 
@@ -75,6 +97,7 @@ func PromptPassword(prompt, name string, validators ...PromptValidator) (string,
 	})
 	defer cancel()
 
+loop:
 	for {
 		_, _ = fmt.Fprintf(os.Stderr, "%s: ", prompt)
 
@@ -96,7 +119,7 @@ func PromptPassword(prompt, name string, validators ...PromptValidator) (string,
 			}
 			if complaint != "" {
 				_, _ = fmt.Fprintln(os.Stderr, complaint)
-				continue
+				continue loop
 			}
 		}
 
@@ -121,10 +144,163 @@ func PromptChoice(prompt string, choices []string) (int, error) {
 
 		index, err := strconv.Atoi(line)
 		if err != nil || index < 1 || index > len(choices) {
-			fmt.Println("invalid input")
+			_, _ = fmt.Fprintf(os.Stderr, "invalid input")
 			continue
 		}
 
 		return index, nil
 	}
 }
+
+func PromptURLWithRemote(prompt, name string, validRemotes []string, validators ...PromptValidator) (string, error) {
+	if len(validRemotes) == 0 {
+		return Prompt(prompt, name, validators...)
+	}
+
+	sort.Strings(validRemotes)
+
+	for {
+		_, _ = fmt.Fprintln(os.Stderr, "\nDetected projects:")
+
+		for i, remote := range validRemotes {
+			_, _ = fmt.Fprintf(os.Stderr, "[%d]: %v\n", i+1, remote)
+		}
+
+		_, _ = fmt.Fprintf(os.Stderr, "\n[0]: Another project\n\n")
+		_, _ = fmt.Fprintf(os.Stderr, "Select option: ")
+
+		line, err := bufio.NewReader(os.Stdin).ReadString('\n')
+		if err != nil {
+			return "", err
+		}
+
+		line = strings.TrimSpace(line)
+
+		index, err := strconv.Atoi(line)
+		if err != nil || index < 0 || index > len(validRemotes) {
+			_, _ = fmt.Fprintf(os.Stderr, "invalid input")
+			continue
+		}
+
+		// if user want to enter another project url break this loop
+		if index == 0 {
+			break
+		}
+
+		return validRemotes[index-1], nil
+	}
+
+	return Prompt(prompt, name, validators...)
+}
+
+var ErrDirectPrompt = errors.New("direct prompt selected")
+var ErrInteractiveCreation = errors.New("interactive creation selected")
+
+func PromptCredential(target, name string, credentials []auth.Credential) (auth.Credential, error) {
+	if len(credentials) == 0 {
+		return nil, nil
+	}
+
+	sort.Sort(auth.ById(credentials))
+
+	for {
+		_, _ = fmt.Fprintf(os.Stderr, "[1]: enter my %s\n", name)
+
+		_, _ = fmt.Fprintln(os.Stderr)
+		_, _ = fmt.Fprintf(os.Stderr, "Existing %s for %s:", name, target)
+
+		for i, cred := range credentials {
+			meta := make([]string, 0, len(cred.Metadata()))
+			for k, v := range cred.Metadata() {
+				meta = append(meta, k+":"+v)
+			}
+			sort.Strings(meta)
+			metaFmt := strings.Join(meta, ",")
+
+			fmt.Printf("[%d]: %s => (%s) (%s)\n",
+				i+2,
+				colors.Cyan(cred.ID().Human()),
+				metaFmt,
+				cred.CreateTime().Format(time.RFC822),
+			)
+		}
+
+		_, _ = fmt.Fprintln(os.Stderr)
+		_, _ = fmt.Fprintf(os.Stderr, "Select option: ")
+
+		line, err := bufio.NewReader(os.Stdin).ReadString('\n')
+		_, _ = fmt.Fprintln(os.Stderr)
+		if err != nil {
+			return nil, err
+		}
+
+		line = strings.TrimSpace(line)
+		index, err := strconv.Atoi(line)
+		if err != nil || index < 1 || index > len(credentials)+1 {
+			_, _ = fmt.Fprintln(os.Stderr, "invalid input")
+			continue
+		}
+
+		switch index {
+		case 1:
+			return nil, ErrDirectPrompt
+		default:
+			return credentials[index-2], nil
+		}
+	}
+}
+
+func PromptCredentialWithInteractive(target, name string, credentials []auth.Credential) (auth.Credential, error) {
+	sort.Sort(auth.ById(credentials))
+
+	for {
+		_, _ = fmt.Fprintf(os.Stderr, "[1]: enter my %s\n", name)
+		_, _ = fmt.Fprintf(os.Stderr, "[2]: interactive %s creation\n", name)
+
+		if len(credentials) > 0 {
+			_, _ = fmt.Fprintln(os.Stderr)
+			_, _ = fmt.Fprintf(os.Stderr, "Existing %s for %s:", name, target)
+
+			for i, cred := range credentials {
+				meta := make([]string, 0, len(cred.Metadata()))
+				for k, v := range cred.Metadata() {
+					meta = append(meta, k+":"+v)
+				}
+				sort.Strings(meta)
+				metaFmt := strings.Join(meta, ",")
+
+				fmt.Printf("[%d]: %s => (%s) (%s)\n",
+					i+2,
+					colors.Cyan(cred.ID().Human()),
+					metaFmt,
+					cred.CreateTime().Format(time.RFC822),
+				)
+			}
+		}
+
+		_, _ = fmt.Fprintln(os.Stderr)
+		_, _ = fmt.Fprintf(os.Stderr, "Select option: ")
+
+		line, err := bufio.NewReader(os.Stdin).ReadString('\n')
+		_, _ = fmt.Fprintln(os.Stderr)
+		if err != nil {
+			return nil, err
+		}
+
+		line = strings.TrimSpace(line)
+		index, err := strconv.Atoi(line)
+		if err != nil || index < 1 || index > len(credentials)+1 {
+			_, _ = fmt.Fprintln(os.Stderr, "invalid input")
+			continue
+		}
+
+		switch index {
+		case 1:
+			return nil, ErrDirectPrompt
+		case 2:
+			return nil, ErrInteractiveCreation
+		default:
+			return credentials[index-3], nil
+		}
+	}
+}