package useCases

import (
	"RenewCMS/internal/domain/article"
	"RenewCMS/internal/domain/builtintype"
	"RenewCMS/internal/domain/role"
)

type ContentCaller struct {
	UserID uint32
	Grants role.GrantSet
}

func (c ContentCaller) requireHolding(key string, typeKey string) error {
	if !c.Grants.HoldsFor(key, typeKey) {
		return role.MissingPermissionError{Key: key}
	}
	return nil
}

func (c ContentCaller) authorize(key string, typeKey string, createdBy uint32) error {
	if !c.Grants.Permits(key, typeKey, c.UserID, createdBy) {
		return role.MissingPermissionError{Key: key}
	}
	return nil
}

func (c ContentCaller) reads(typeKey string, createdBy uint32) bool {
	return c.Grants.Permits(role.KeyContentRead, typeKey, c.UserID, createdBy)
}

func (c ContentCaller) seesArticle(art article.Article) bool {
	return art.IsOnline || c.reads(builtintype.KeyArticle, art.CreatedBy)
}