unite_the_spanish_thrones_decision_effects

unite_the_spanish_thrones_decision_effects = {
	#Prestige
	add_prestige = massive_prestige_gain

	#Laws
	if = {
		limit = { has_realm_law = crown_authority_0 }
		add_realm_law_skip_effects = crown_authority_2
	}
	else_if = {
		limit = {
			OR = {
				has_realm_law = crown_authority_1
				has_realm_law = crown_authority_2
			}
		}
		add_realm_law_skip_effects = crown_authority_3
	}

	# Coat of Arms
	if = {
		limit = { scope:spain_uniter.primary_title = title:k_castille }
		primary_title = { set_coa = k_castille_leon }
	}
	else_if = {
		limit = { scope:spain_uniter.primary_title = title:k_leon }
		primary_title = { set_coa = k_leon_castille }
	}

	#Handle other Kingdom titles
	title:k_castille = { add_to_list = spanish_kingdoms }
	title:k_leon = { add_to_list = spanish_kingdoms }
	title:k_spanish_galicia = { add_to_list = spanish_kingdoms }
	title:k_portugal = { add_to_list = spanish_kingdoms }
	title:k_aragon = { add_to_list = spanish_kingdoms }
	title:k_navarra = { add_to_list = spanish_kingdoms }
	title:k_andalusia = { add_to_list = spanish_kingdoms }
	title:k_badajoz = { add_to_list = spanish_kingdoms }
	title:k_valencia = { add_to_list = spanish_kingdoms }
	title:k_toledo = { add_to_list = spanish_kingdoms }

	custom_tooltip = unite_the_spanish_thrones_decision_titles_tt
	hidden_effect = {
		every_in_list = {
			list = spanish_kingdoms
			limit = {
				this != scope:spain_uniter.primary_title
				scope:spain_uniter = { completely_controls = prev }
			}

			#De jure shift all held spanish titles into your primary title
			every_in_de_jure_hierarchy = {
				limit = { tier = tier_duchy }
				set_de_jure_liege_title = scope:spain_uniter.primary_title
			}

			#Destroys them all!
			scope:spain_uniter = { destroy_title = prev }
		}
	}
}

As written in game/common/scripted_effects/00_decisions_effects.txt.