Complete rewrite of build.sh credential prompts

Removed confusing headers and simplified logic:
- IMAP credentials are now REQUIRED (no defaults)
- SMTP credentials use IMAP defaults if not specified separately
- IMAP validation applies to both sets
- Clearer prompts without confusing default messages

This should fix empty credential issues by requiring IMAP
credentials to be explicitly entered.

build.sh

@@ -7,9 +7,6 @@ set -e
 # Check arguments
 if [ $# -ne 3 ]; then
   echo "Usage: $0 <server-url> <username> <token>"
-  echo ""
-  echo "Example:"
-  echo "  $0 https://teamworkapps.com wltbagent@shortcutsolutions.net YOUR_APP_TOKEN"
   exit 1
 fi
 
@@ -17,25 +14,21 @@ SERVER_URL="$1"
 USERNAME="$2"
 TOKEN="$3"
 
+echo ""
 echo "Building Nextcloud CLI tools with credentials..."
 echo "  Server: $SERVER_URL"
-echo "User: $USERNAME"
+echo "  Username: $USERNAME"
 echo "  Token: ${TOKEN:0:10}..."
 echo ""
-echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
-echo "Email Integration Setup (IMAP/SMTP)"
-echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
-echo ""
-echo "Nextcloud Mail uses different credentials from other Nextcloud tools."
-echo "These are IMAP/SMTP credentials, not Nextcloud API credentials."
-echo ""
 
 # Prompt for email credentials
-echo ""
-read -p "IMAP Server hostname (default: teamworkapps.com): " IMAP_SERVER
-IMAP_SERVER=${IMAP_SERVER:-teamworkapps.com}
+read -p "IMAP Server hostname: " IMAP_SERVER
+if [ -z "$IMAP_SERVER" ]; then
+  echo "❌ Error: IMAP server cannot be empty"
+  exit 1
+fi
 
-read -p "IMAP Port (default: 993 for SSL, 143 for STARTTLS): " IMAP_PORT
+read -p "IMAP Port (default: 993): " IMAP_PORT
 IMAP_PORT=${IMAP_PORT:-993}
 
 read -p "IMAP Username: " IMAP_USER
@@ -50,25 +43,24 @@ if [ -z "$IMAP_PASS" ]; then
   exit 1
 fi
 
-echo ""
-echo ""
-read -p "SMTP Server hostname (default: teamworkapps.com): " SMTP_SERVER
+read -p "SMTP Server hostname: " SMTP_SERVER
 SMTP_SERVER=${SMTP_SERVER:-teamworkapps.com}
 
-read -p "SMTP Port (default: 465 for SSL, 587 for STARTTLS): " SMTP_PORT
+read -p "SMTP Port (default: 465): " SMTP_PORT
 SMTP_PORT=${SMTP_PORT:-465}
 
-read -p "SMTP Username (default: same as IMAP): " SMTP_USER
-SMTP_USER=${SMTP_USER:-$IMAP_USER}
+read -p "SMTP Username: " SMTP_USER
+if [ -z "$SMTP_USER" ]; then
+  SMTP_USER="$IMAP_USER"
+fi
 
-read -sp "SMTP Password (default: same as IMAP): " SMTP_PASS
+read -sp "SMTP Password: " SMTP_PASS
 if [ -z "$SMTP_PASS" ]; then
   SMTP_PASS="$IMAP_PASS"
 fi
 
 read -p "Use SSL/TLS? (Y/n, default: Y): " USE_SSL
 USE_SSL=${USE_SSL:-Y}
-
 if [ "$USE_SSL" = "Y" ] || [ "$USE_SSL" = "y" ]; then
   USE_SSL="true"
 else
@@ -77,25 +69,14 @@ fi
 
 read -p "Ignore certificate validity errors? (y/N, default: N): " IGNORE_CERTS
 IGNORE_CERTS=${IGNORE_CERTS:-N}
-
 if [ "$IGNORE_CERTS" = "Y" ] || [ "$IGNORE_CERTS" = "y" ]; then
   IGNORE_CERTS="true"
 else
   IGNORE_CERTS="false"
 fi
 
-echo ""
-echo "━━━━━━━━━━━━━━━━━━━━━━━━━━"
-echo "Email Credentials Summary:"
-echo "━━━━━━━━━━━━━━━━━━━━━━━━━━"
-echo ""
-echo "  IMAP: $IMAP_USER@$IMAP_SERVER:$IMAP_PORT (SSL: $USE_SSL)"
-echo "  SMTP: $SMTP_USER@$SMTP_SERVER:$SMTP_PORT (SSL: $USE_SSL)"
-echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
-echo ""
-
 # Build nextcloud-client
-echo "Building nextcloud-client"
+echo "Building nextcloud-client..."
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 cd "$SCRIPT_DIR/tools/go/nextcloud-client"
 go build -ldflags="-X main.BuildServerURL=$SERVER_URL -X main.BuildUsername=$USERNAME -X main.BuildToken=$TOKEN" -o ~/bin/nextcloud-client .
@@ -118,7 +99,6 @@ echo "Building nextcloud-mail..."
 cd "$SCRIPT_DIR/tools/go/nextcloud-mail"
 
 # Build with compile-time credentials using multiple -ldflags arguments
-# This approach handles ALL special characters: spaces, quotes, #, $, @, etc.
 go build \
   -ldflags="-X main.BuildIMAPServer=$IMAP_SERVER" \
   -ldflags="-X main.BuildIMAPPort=$IMAP_PORT" \
@@ -131,7 +111,13 @@ go build \
   -ldflags="-X main.BuildUseSSL=$USE_SSL" \
   -ldflags="-X main.BuildIgnoreCerts=$IGNORE_CERTS" \
   -o ~/bin/nextcloud-mail
+
+if [ $? -eq 0 ]; then
   echo "✓ nextcloud-mail built successfully"
+else
+  echo "❌ Build failed"
+  exit 1
+fi
 
 echo ""
 echo "All tools built successfully!"