package gosecret

import (
	"time"

	"github.com/godbus/dbus/v5"
)

/*
	MultiError is a type of error.Error that can contain multiple error.Errors. Confused? Don't worry about it.
*/
type MultiError struct {
	// Errors is a slice of errors to combine/concatenate when .Error() is called.
	Errors []error `json:"errors"`
	// ErrorSep is a string to use to separate errors for .Error(). The default is "\n".
	ErrorSep string `json:"separator"`
}

/*
	SecretServiceError is a translated error from SecretService API.
	See https://developer-old.gnome.org/libsecret/unstable/libsecret-SecretError.html#SecretError and
	ErrSecretService* errors.
*/
type SecretServiceError struct {
	// ErrCode is the SecretService API's enum value.
	ErrCode SecretServiceErrEnum `json:"code"`
	// ErrName is the SecretService API's error name.
	ErrName string `json:"name"`
	/*
		ErrDesc is the actual error description/text.
		This is what should be displayed to users, and is returned by SecretServiceError.Error.
	*/
	ErrDesc string `json:"desc"`
}

// ConnPathCheckResult contains the result of validConnPath.
type ConnPathCheckResult struct {
	// ConnOK is true if the dbus.Conn is valid.
	ConnOK bool `json:"conn"`
	// PathOK is true if the Dbus path given is a valid type and value.
	PathOK bool `json:"path"`
}

// DbusObject is a base struct type to be anonymized by other types.
type DbusObject struct {
	// Conn is an active connection to the Dbus.
	Conn *dbus.Conn `json:"-"`
	// Dbus is the Dbus bus object.
	Dbus dbus.BusObject `json:"-"`
}

/*
	Prompt is an interface to handling unlocking prompts.
	https://developer-old.gnome.org/libsecret/0.18/SecretPrompt.html
	https://specifications.freedesktop.org/secret-service/latest/ch09.html
*/
type Prompt struct {
	*DbusObject
}

/*
	Service is a general SecretService interface, sort of handler for Dbus - it's used for fetching a Session, Collections, etc.
	https://developer-old.gnome.org/libsecret/0.18/SecretService.html
	https://specifications.freedesktop.org/secret-service/latest/re01.html
*/
type Service struct {
	*DbusObject
	// Session is a default Session initiated automatically.
	Session *Session `json:"-"`
}

/*
	Session is a session/instance/connection to SecretService.
	https://developer-old.gnome.org/libsecret/0.18/SecretService.html
	https://specifications.freedesktop.org/secret-service/latest/ch06.html
*/
type Session struct {
	*DbusObject
	// collection tracks the Service this Session was created from.
	service *Service
}

/*
	Collection is an accessor for libsecret collections, which contain multiple Secret Item items.
	Reference:
	https://developer-old.gnome.org/libsecret/0.18/SecretCollection.html
	https://specifications.freedesktop.org/secret-service/latest/ch03.html
*/
type Collection struct {
	*DbusObject
	// lastModified is unexported because it's important that API users don't change it; it's used by Collection.Modified.
	lastModified time.Time
	// lastModifiedSet is unexported; it's only used to determine if this is a first-initialization of the modification time or not.
	lastModifiedSet bool
	// name is used for the Collection's name/label so the Dbus path doesn't need to be parsed all the time.
	name string
	// service tracks the Service this Collection was created from.
	service *Service
}

/*
	Item is an entry in a Collection that contains a Secret.
	https://developer-old.gnome.org/libsecret/0.18/SecretItem.html
	https://specifications.freedesktop.org/secret-service/latest/re03.html
*/
type Item struct {
	*DbusObject
	// Secret is the corresponding Secret object.
	Secret *Secret `json:"secret"`
	// lastModified is unexported because it's important that API users don't change it; it's used by Collection.Modified.
	lastModified time.Time
	// lastModifiedSet is unexported; it's only used to determine if this is a first-initialization of the modification time or not.
	lastModifiedSet bool
	/*
		idx is the index identifier of the Item.
		It is almost guaranteed to not match the index in Collection.Items (unless you have like, only one item)
		as those indices are static and do not determine the order that Dbus returns the list of item paths.
	*/
	idx int
	// collection tracks the Collection this Item is in.
	collection *Collection
}

/*
	Secret is the "Good Stuff" - the actual secret content.
	https://developer-old.gnome.org/libsecret/0.18/SecretValue.html
	https://specifications.freedesktop.org/secret-service/latest/re03.html
	https://specifications.freedesktop.org/secret-service/latest/ch14.html#type-Secret
*/
type Secret struct {
	// Session is a Dbus object path for the associated Session (the actual Session is stored in an unexported field).
	Session dbus.ObjectPath `json:"session_path"`
	/*
		Parameters are "algorithm dependent parameters for secret value encoding" - likely this will just be an empty byteslice.
		Refer to Session for more information.
	*/
	Parameters []byte `json:"params"`
	// Value is the secret's content in []byte format.
	Value SecretValue `json:"value"`
	// ContentType is the MIME type of Value.
	ContentType string `json:"content_type"`
	// item is the Item this Secret belongs to.
	item *Item
	// session is the Session used to decode/decrypt this Secret.
	session *Session
}

// SecretValue is a custom type that handles JSON encoding/decoding a little more easily.
type SecretValue []byte