# HMAC File Server - Enhanced Network Resilience Configuration
# Optimized for mobile devices and network switching scenarios

[server]
listen_address = "8080"
storage_path = "/opt/hmac-file-server/data/uploads"
networkevents = true                # REQUIRED: Enable network monitoring

[uploads]
allowed_extensions = [".zip", ".rar", ".7z", ".tar.gz", ".tgz", ".gpg", ".enc", ".pgp", ".txt", ".pdf", ".png", ".jpg", ".jpeg", ".gif", ".bmp", ".tiff", ".svg", ".webp", ".wav", ".mp4", ".avi", ".mkv", ".mov", ".wmv", ".flv", ".webm", ".mpeg", ".mpg", ".m4v", ".3gp", ".3g2", ".mp3", ".ogg", ".doc", ".docx"]
chunked_uploads_enabled = true
chunk_size = "32MB"                 # Optimized chunk size for mobile
resumable_uploads_enabled = true
max_resumable_age = "72h"           # Extended for mobile scenarios
sessiontimeout = "90m"              # Longer sessions for mobile
maxretries = 5                      # More retries for mobile networks

# Enhanced upload resilience settings for mobile
session_persistence = true
session_recovery_timeout = "600s"   # 10 minutes for mobile switches
client_reconnect_window = "300s"    # 5 minutes reconnect window
upload_slot_ttl = "7200s"          # 2 hours slot validity
retry_failed_uploads = true
max_upload_retries = 8              # More retries for cellular

[timeouts]
readtimeout = "600s"                # 10 minutes for mobile networks
writetimeout = "600s"               # Extended for cellular uploads
idletimeout = "1200s"               # 20 minutes idle tolerance
shutdown = "300s"

# NEW: Enhanced Network Resilience Configuration
[network_resilience]
fast_detection = true               # Enable 1-second network change detection
quality_monitoring = true           # Monitor connection quality (RTT, packet loss)
predictive_switching = true         # Switch proactively before network fails
mobile_optimizations = true        # Mobile-friendly thresholds and timeouts

# Timing configuration
detection_interval = "1s"           # Fast detection interval
quality_check_interval = "5s"      # How often to check connection quality
max_detection_interval = "10s"     # Maximum interval during stable periods

[security]
secret = "f6g4ldPvQM7O2UTFeBEUUj33VrXypDAcsDt0yqKrLiOr5oQW"

[logging]
level = "info"                      # Set to "debug" to see network resilience details
file = "/opt/hmac-file-server/data/logs/hmac-file-server.log"
max_size = 100
max_backups = 7
max_age = 30
compress = true

[deduplication]
enabled = true
directory = "/opt/hmac-file-server/data/deduplication"
maxsize = "1GB"

# Configuration Notes:
# 1. Set networkevents = true in [server] section to enable network monitoring
# 2. fast_detection = true enables 1-second polling instead of 5-second polling
# 3. quality_monitoring = true adds RTT and packet loss monitoring
# 4. predictive_switching = true switches networks proactively before complete failure
# 5. mobile_optimizations = true uses mobile-friendly thresholds (higher RTT tolerance, etc.)
# 6. Extended timeouts and retry counts help with mobile network instability
# 7. Longer session persistence accommodates network switching delays

# Mobile Network Switching Benefits:
# • WLAN ↔ 5G IPv6 switching: Fast detection (1s) + predictive switching
# • Dual connectivity (Wired + WiFi): Quality monitoring selects best interface  
# • Cellular optimization: Higher RTT/packet loss tolerance + more retries
# • Session mobility: 10-minute recovery window for IP address changes
# • Proactive switching: Network degradation detected before complete failure