#!/usr/bin/env bash
set -euo pipefail

echo "=== Configuration Debian pour NexusPBX ==="

# 1. Ajout de www-data au groupe asterisk
usermod -aG asterisk www-data

# 2. Création d'un certificat TLS local de secours pour PJSIP TLS (port 5061)
mkdir -p /etc/asterisk/keys
if [ ! -f /etc/asterisk/keys/asterisk.crt ]; then
    openssl req -x509 -nodes -days 3650 -newkey rsa:2048 \
        -keyout /etc/asterisk/keys/asterisk.key \
        -out /etc/asterisk/keys/asterisk.crt \
        -subj "/C=FR/ST=IDF/L=Paris/O=NexusPBX/CN=pbx.local" 2>/dev/null
fi

# 3. Configuration de l'AMI (/etc/asterisk/manager.conf) sur 127.0.0.1:5038
cat << 'EOF' > /etc/asterisk/manager.conf
[general]
enabled = yes
port = 5038
bindaddr = 127.0.0.1
displayconnects = no
timestampevents = yes

[pbxgui]
secret = AsteriskAmi2026!
deny = 0.0.0.0/0.0.0.0
permit = 127.0.0.1/255.255.255.0
read = all
write = all
EOF

# 4. Fichiers .custom.conf initiaux et inclusions dans pjsip.conf et extensions.conf
touch /etc/asterisk/pjsip.custom.conf /etc/asterisk/extensions.custom.conf

if ! grep -q 'pjsip.custom.conf' /etc/asterisk/pjsip.conf; then
    printf '\n#tryinclude "pjsip.custom.conf"\n' >> /etc/asterisk/pjsip.conf
fi

if ! grep -q 'extensions.custom.conf' /etc/asterisk/extensions.conf; then
    printf '\n#tryinclude "extensions.custom.conf"\n' >> /etc/asterisk/extensions.conf
fi

# 5. Permissions Debian strictes pour asterisk:asterisk et accès groupe www-data
chown -R asterisk:asterisk /etc/asterisk
chmod 2775 /etc/asterisk
chmod 2750 /etc/asterisk/keys
chmod 0640 /etc/asterisk/keys/asterisk.key /etc/asterisk/keys/asterisk.crt
chmod 0660 /etc/asterisk/pjsip.custom.conf /etc/asterisk/extensions.custom.conf
chmod 0664 /etc/asterisk/pjsip.conf /etc/asterisk/extensions.conf
chmod 0640 /etc/asterisk/manager.conf

# 6. Permissions du projet Web et des répertoires de stockage / sauvegardes
mkdir -p /var/www/nexus-pbx/storage/backups
mkdir -p /var/www/nexus-pbx/storage/system_backups
mkdir -p /var/www/nexus-pbx/storage/sounds
mkdir -p /var/lib/asterisk/sounds/custom
mkdir -p /var/spool/asterisk/voicemail/default

chown -R www-data:asterisk /var/www/nexus-pbx
chmod 2775 /var/www/nexus-pbx/storage /var/www/nexus-pbx/storage/backups /var/www/nexus-pbx/storage/system_backups /var/www/nexus-pbx/storage/sounds
chown -R asterisk:asterisk /var/lib/asterisk/sounds /var/spool/asterisk/voicemail
chmod -R g+rwX /var/lib/asterisk/sounds /var/spool/asterisk/voicemail

# Configuration du cron pour sauvegardes automatiques NexusPBX
cat << 'EOF' > /etc/cron.d/nexus-backup
# Sauvegardes programmées automatiques NexusPBX
*/10 * * * * www-data /usr/bin/php /var/www/nexus-pbx/scripts/nexus_autobackup.php >> /var/log/nexus_backup.log 2>&1
EOF
chmod 0644 /etc/cron.d/nexus-backup
touch /var/log/nexus_backup.log && chown www-data:asterisk /var/log/nexus_backup.log && chmod 664 /var/log/nexus_backup.log

# 7. Configuration du VirtualHost Nginx (Port 80)
PHP_SOCK=$(find /run/php/ -name "php*-fpm.sock" | head -n 1)
if [ -z "$PHP_SOCK" ]; then
    PHP_SOCK="/run/php/php8.4-fpm.sock"
fi

cat << EOF > /etc/nginx/sites-available/nexus-pbx
server {
    listen 80 default_server;
    listen [::]:80 default_server;
    server_name _;

    root /var/www/nexus-pbx/public;
    index index.php;

    access_log /var/log/nginx/nexus-pbx.access.log;
    error_log  /var/log/nginx/nexus-pbx.error.log;

    location / {
        try_files \$uri \$uri/ /index.php?\$query_string;
    }

    location ~ \.php\$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:${PHP_SOCK};
        fastcgi_param SCRIPT_FILENAME \$document_root\$fastcgi_script_name;
    }

    location ~ /\.(?!well-known).* {
        deny all;
    }
}
EOF

chown root:asterisk /etc/nginx/sites-available/nexus-pbx
chmod 664 /etc/nginx/sites-available/nexus-pbx
rm -f /etc/nginx/sites-enabled/default
ln -sf /etc/nginx/sites-available/nexus-pbx /etc/nginx/sites-enabled/nexus-pbx

# 8. Redémarrage des services Debian
systemctl restart php8.4-fpm
nginx -t && systemctl restart nginx
systemctl restart asterisk

echo "=== Déploiement NexusPBX terminé avec succès ==="