package mailfull

import (
	"fmt"
	"path/filepath"
	"time"
)

// GenerateConfigPostfix generate a configuration for Postfix.
func (r *Repository) GenerateConfigPostfix() string {
	cfg := fmt.Sprintf(`
#
# Sample configuration: main.cf
# Generated by mailfull %s on %s
#

#myhostname = host.example.com
mydomain = $myhostname
myorigin = $mydomain

inet_interfaces = all
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
mynetworks_style = host
recipient_delimiter = -
message_size_limit = 10240000
mailbox_size_limit = 51200000
virtual_mailbox_limit = 51200000

virtual_mailbox_domains = hash:%s
virtual_mailbox_base = %s
virtual_mailbox_maps = hash:%s
virtual_uid_maps = static:%d
virtual_gid_maps = static:%d
virtual_alias_maps = hash:%s
transport_maps = regexp:%s
alias_maps = hash:/etc/aliases, hash:%s
alias_database = hash:/etc/aliases, hash:%s

smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = $myhostname
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth

smtpd_tls_cert_file = /etc/pki/dovecot/certs/dovecot.pem
smtpd_tls_key_file = /etc/pki/dovecot/private/dovecot.pem
#smtpd_tls_CAfile =
smtpd_tls_session_cache_database = btree:/var/lib/postfix/smtpd_scache
smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3

smtp_tls_security_level = may
smtp_tls_loglevel = 1
smtpd_tls_security_level = may
smtpd_tls_loglevel = 1
`,
		Version, time.Now().Format(time.RFC3339),
		filepath.Join(r.DirDatabasePath, FileNameDbDomains),
		r.DirMailDataPath,
		filepath.Join(r.DirDatabasePath, FileNameDbMaildirs),
		r.uid,
		r.gid,
		filepath.Join(r.DirDatabasePath, FileNameDbDestinations),
		filepath.Join(r.DirDatabasePath, FileNameDbLocaltable),
		filepath.Join(r.DirDatabasePath, FileNameDbForwards),
		filepath.Join(r.DirDatabasePath, FileNameDbForwards),
	)

	return cfg[1:]
}

// GenerateConfigDovecot generate a configuration for Dovecot.
func (r *Repository) GenerateConfigDovecot() string {
	cfg := fmt.Sprintf(`
#
# Sample configuration: dovecot.conf
# Generated by mailfull %s on %s
#

protocols = imap pop3
auth_mechanisms = plain login
mail_location = maildir:~/Maildir

ssl = yes
ssl_cert = </etc/pki/dovecot/certs/dovecot.pem
ssl_key = </etc/pki/dovecot/private/dovecot.pem
#ssl_ca =

disable_plaintext_auth = yes

service imap-login {
  inet_listener imap {
    port = 143
  }
  inet_listener imaps {
    port = 993
    ssl = yes
  }
}

service pop3-login {
  inet_listener pop3 {
    port = 110
  }
  inet_listener pop3s {
    port = 995
    ssl = yes
  }
}

service auth {
  unix_listener /var/spool/postfix/private/auth {
    mode = 0666
    user = postfix
    group = postfix
  }
}

passdb {
  driver = passwd-file
  args = %s
}
userdb {
  driver = static
  args = uid=%d gid=%d home=%s/%%d/%%n
}

passdb {
  driver = pam
}
userdb {
  driver = passwd
}
`,
		Version, time.Now().Format(time.RFC3339),
		filepath.Join(r.DirDatabasePath, FileNameDbPasswords),
		r.uid, r.gid, r.DirMailDataPath,
	)

	return cfg[1:]
}