package payload

import (
	"RenewCMS/internal/domain/role"
	"RenewCMS/internal/infrastructure/useCases"
	"time"
)

type RoleRef struct {
	ID      uint32 `json:"id"`
	Name    string `json:"name"`
	BuiltIn bool   `json:"built_in"`
	Locked  bool   `json:"locked"`
}

type RoleAssigner struct {
	ID   uint32 `json:"id"`
	Name string `json:"name"`
}

type RoleEditor struct {
	ID   uint32 `json:"id"`
	Name string `json:"name"`
}

type RoleView struct {
	role.Role
	Members   int         `json:"members"`
	UpdatedAt *time.Time  `json:"updated_at"`
	UpdatedBy *RoleEditor `json:"updated_by"`
}

type OwnershipSuccessor struct {
	ID   uint32 `json:"id"`
	Name string `json:"name"`
}

type OwnershipPredecessor struct {
	ID   uint32  `json:"id"`
	Name string  `json:"name"`
	Role RoleRef `json:"role"`
}

type OwnershipTransfer struct {
	Owner       OwnershipSuccessor   `json:"owner"`
	FormerOwner OwnershipPredecessor `json:"former_owner"`
}

func RoleRefOf(ref useCases.RoleRef) RoleRef {
	return RoleRef(ref)
}

func RoleRefPtrOf(ref *useCases.RoleRef) *RoleRef {
	if ref == nil {
		return nil
	}
	converted := RoleRefOf(*ref)
	return &converted
}

func RoleAssignerPtrOf(assigner *useCases.RoleAssigner) *RoleAssigner {
	if assigner == nil {
		return nil
	}
	converted := RoleAssigner(*assigner)
	return &converted
}

func RoleViewOf(view useCases.RoleView) RoleView {
	converted := RoleView{Role: view.Role, Members: view.Members, UpdatedAt: view.UpdatedAt}
	if view.UpdatedBy != nil {
		editor := RoleEditor(*view.UpdatedBy)
		converted.UpdatedBy = &editor
	}
	return converted
}

func RoleViewsOf(views []useCases.RoleView) []RoleView {
	converted := make([]RoleView, 0, len(views))
	for _, view := range views {
		converted = append(converted, RoleViewOf(view))
	}
	return converted
}

func OwnershipTransferOf(transfer useCases.OwnershipTransfer) OwnershipTransfer {
	return OwnershipTransfer{
		Owner:       OwnershipSuccessor(transfer.Owner),
		FormerOwner: OwnershipPredecessor{ID: transfer.FormerOwner.ID, Name: transfer.FormerOwner.Name, Role: RoleRefOf(transfer.FormerOwner.Role)},
	}
}