package schema

// LDAPAuthenticationBackendConfiguration represents the configuration related to LDAP server.
type LDAPAuthenticationBackendConfiguration struct {
	Implementation       string     `koanf:"implementation"`
	URL                  string     `koanf:"url"`
	BaseDN               string     `koanf:"base_dn"`
	AdditionalUsersDN    string     `koanf:"additional_users_dn"`
	UsersFilter          string     `koanf:"users_filter"`
	AdditionalGroupsDN   string     `koanf:"additional_groups_dn"`
	GroupsFilter         string     `koanf:"groups_filter"`
	GroupNameAttribute   string     `koanf:"group_name_attribute"`
	UsernameAttribute    string     `koanf:"username_attribute"`
	MailAttribute        string     `koanf:"mail_attribute"`
	DisplayNameAttribute string     `koanf:"display_name_attribute"`
	User                 string     `koanf:"user"`
	Password             string     `koanf:"password"`
	StartTLS             bool       `koanf:"start_tls"`
	TLS                  *TLSConfig `koanf:"tls"`
}

// FileAuthenticationBackendConfiguration represents the configuration related to file-based backend.
type FileAuthenticationBackendConfiguration struct {
	Path     string                 `koanf:"path"`
	Password *PasswordConfiguration `koanf:"password"`
}

// PasswordConfiguration represents the configuration related to password hashing.
type PasswordConfiguration struct {
	Iterations  int    `koanf:"iterations"`
	KeyLength   int    `koanf:"key_length"`
	SaltLength  int    `koanf:"salt_length"`
	Algorithm   string `mapstrucutre:"algorithm"`
	Memory      int    `koanf:"memory"`
	Parallelism int    `koanf:"parallelism"`
}

// AuthenticationBackendConfiguration represents the configuration related to the authentication backend.
type AuthenticationBackendConfiguration struct {
	DisableResetPassword bool                                    `koanf:"disable_reset_password"`
	RefreshInterval      string                                  `koanf:"refresh_interval"`
	LDAP                 *LDAPAuthenticationBackendConfiguration `koanf:"ldap"`
	File                 *FileAuthenticationBackendConfiguration `koanf:"file"`
}

// DefaultPasswordConfiguration represents the default configuration related to Argon2id hashing.
var DefaultPasswordConfiguration = PasswordConfiguration{
	Iterations:  1,
	KeyLength:   32,
	SaltLength:  16,
	Algorithm:   argon2id,
	Memory:      64,
	Parallelism: 8,
}

// DefaultCIPasswordConfiguration represents the default configuration related to Argon2id hashing for CI.
var DefaultCIPasswordConfiguration = PasswordConfiguration{
	Iterations:  1,
	KeyLength:   32,
	SaltLength:  16,
	Algorithm:   argon2id,
	Memory:      64,
	Parallelism: 8,
}

// DefaultPasswordSHA512Configuration represents the default configuration related to SHA512 hashing.
var DefaultPasswordSHA512Configuration = PasswordConfiguration{
	Iterations: 50000,
	SaltLength: 16,
	Algorithm:  "sha512",
}

// DefaultLDAPAuthenticationBackendConfiguration represents the default LDAP config.
var DefaultLDAPAuthenticationBackendConfiguration = LDAPAuthenticationBackendConfiguration{
	Implementation:       LDAPImplementationCustom,
	UsernameAttribute:    "uid",
	MailAttribute:        "mail",
	DisplayNameAttribute: "displayname",
	GroupNameAttribute:   "cn",
	TLS: &TLSConfig{
		MinimumVersion: "TLS1.2",
	},
}

// DefaultLDAPAuthenticationBackendImplementationActiveDirectoryConfiguration represents the default LDAP config for the MSAD Implementation.
var DefaultLDAPAuthenticationBackendImplementationActiveDirectoryConfiguration = LDAPAuthenticationBackendConfiguration{
	UsersFilter:          "(&(|({username_attribute}={input})({mail_attribute}={input}))(sAMAccountType=805306368)(!(userAccountControl:1.2.840.113556.1.4.803:=2))(!(pwdLastSet=0)))",
	UsernameAttribute:    "sAMAccountName",
	MailAttribute:        "mail",
	DisplayNameAttribute: "displayName",
	GroupsFilter:         "(&(member={dn})(objectClass=group))",
	GroupNameAttribute:   "cn",
}