is_clerical_appointment_valid_base_trigger

is_clerical_appointment_valid_base_trigger = {
	$CANDIDATE$ = { save_temporary_scope_as = candidate_temp }
	$TOP_LIEGE$ = { save_temporary_scope_as = top_liege_temp }
	scope:candidate_temp = {
		is_adult = yes
		faith = scope:top_liege_temp.faith # Must be of the same faith
		custom_tooltip = {
			text = can_be_appointed_interaction_tt
			OR = {
				can_be_granted_theocratic_titles_by = { RULER = scope:top_liege_temp } # Gender checks
				AND = {
					is_diarch_of_target = scope:top_liege_temp
					scope:top_liege_temp = { has_diarchy_active_parameter = diarchy_is_co_rulership }
				}
			}
		}
		custom_tooltip = {
			text = can_be_appointed_interaction_clergy_tt
			OR = { # Clergy or Lay Clergy
				is_clergy = yes
				rite = { rite_has_parameter = lay_clergy } # HoF cannot be temporal if you have Theocratic clergy, so no need to check for that
				this = scope:top_liege_temp.player_heir # Designated Theocratic Heir
				AND = {
					is_landless_adventurer = yes
					this = scope:top_liege_temp
				}
			}
		}
		custom_tooltip = { # Only theocracies
			text = only_theocratic_tt
			OR = {
				government_has_flag = government_is_theocracy
				is_landed = no
			}
		}
		custom_tooltip = { # Barred from holding titles
			text = can_be_appointed_interaction_can_inherit_tt
			NOR = {
				has_trait = order_member
				has_trait = gallivanter
				has_trait = disinherited
			}
		}
	}
}

As written in game/common/scripted_triggers/pam_scripted_triggers.txt.