package classes

import (
	"time"

	"git.golem15.com/golem15/sm-user-plugin/models"
	"gorm.io/gorm"
)

// CreatedEventName is the festival name of CreatedEvent (D-13 / RESEARCH A6).
const CreatedEventName = "user.Created"

// DeletingEventName is the festival name of DeletingEvent (D-13 / RESEARCH A6).
const DeletingEventName = "user.Deleting"

// DeactivatingEventName is the festival name of DeactivatingEvent.
const DeactivatingEventName = "user.Deactivating"

// BackendLinkedEventName is the festival name of BackendLinkedEvent.
const BackendLinkedEventName = "user.BackendLinked"

// BackendUnlinkedEventName is the festival name of BackendUnlinkedEvent.
const BackendUnlinkedEventName = "user.BackendUnlinked"

// AccessRevokedEventName is the festival name of AccessRevokedEvent.
const AccessRevokedEventName = "user.AccessRevoked"

// GetApiArrayEvent is the fire-and-collect payload other plugins extend.
type GetApiArrayEvent struct {
	User *models.User
	data map[string]any
}

// Collected returns the map listeners merge into the user payload.
func (e *GetApiArrayEvent) Collected() map[string]any {
	if e.data == nil {
		e.data = map[string]any{}
	}
	return e.data
}

// RegisterEvent is fired after a user row is created (Winter's
// golem15.user.register).
type RegisterEvent struct {
	User *models.User
	// Payload is a copy of the register input, mirroring the data array
	// Winter passes with golem15.user.register, so a listener can read
	// extra keys a client sent (an invitation token, for example).
	// password and password_confirmation are never included, in plaintext
	// or hashed. Listeners must treat it as read-only input.
	Payload map[string]any
}

// CreatedEvent fires from every user create path (API register and admin
// create) so listeners can run inside the same write, including handle
// generation (D-13, D-15). Tx is the create transaction when there is one.
type CreatedEvent struct {
	User *models.User
	Tx   *gorm.DB
}

// DeletingEvent fires from FormAfterDelete before ForceDeleteCleanup /
// unscoped delete, inside the same transaction, so listeners (chatchannels
// GDPR) can sever rows before the user row is gone (D-13, T-19-07).
type DeletingEvent struct {
	User *models.User
	Tx   *gorm.DB
}

// DeactivatingEvent fires after a user is soft-deleted (deactivated, the
// PHP $user->delete()) by the admin deactivate action, inside the same
// transaction, so listeners can revoke what a deactivated account must not
// keep (OAuth grants, for example) while leaving what a restore needs. The
// user's session JWTs and personal API tokens are already revoked when it
// fires (DeactivateUsers calls RevokeUserAccess). A listener error rolls the
// deactivation back.
type DeactivatingEvent struct {
	User *models.User
	Tx   *gorm.DB
}

// BackendLinkedEvent fires inside the write transaction after a link was
// stored, by the frontend user's confirmation (Link.LinkedBy nil) or by an
// administrator (Link.LinkedBy set). A listener error rolls the link back.
type BackendLinkedEvent struct {
	Link *models.BackendLink
	Tx   *gorm.DB
}

// BackendUnlinkedEvent fires inside the write transaction after a link was
// removed, from My account, the Administrators screen or because one of the
// accounts was deleted or deactivated. A listener error rolls the removal
// back.
type BackendUnlinkedEvent struct {
	Link *models.BackendLink
	Tx   *gorm.DB
}

// AccessRevokedEvent fires inside the write transaction when users lose
// every credential issued before Before: a ban, a password reset, a password
// an administrator set, or the user's own password change (FireAccessRevoked;
// Reason names which). Listeners revoke what such a credential still holds
// elsewhere, for example OAuth access and refresh tokens created before
// Before. Before is the untruncated instant of the revocation, while the
// users' tokens_valid_after keeps its whole-second value. A listener error
// rolls the write back. Deactivation and deletion keep their own events
// (DeactivatingEvent, DeletingEvent).
type AccessRevokedEvent struct {
	UserIDs []uint
	Before  time.Time
	Reason  string
	Tx      *gorm.DB
}