Request Excommunication

is_available = trigger_if = {
	limit = {
		is_ai = yes
	}
	piety >= major_piety_value
	is_adult = yes
	NOT = {
		has_character_flag = hof_request_cooldown
	}
	faith ?= {
		faith_has_sacraments_central_trigger = yes
	}
}
is_shown = scope:puppet_or_actor.faith ?= {
	faith_has_sacraments_central_trigger = yes
	OR = {
		petition_head_of_faith_faith_qualifies_trigger = yes
		has_doctrine_parameter = has_clerical_regions
		AND = {
			has_doctrine = doctrine_spiritual_head
			exists = religious_head
		}
		any_faith_ruler = {
			government_has_flag = government_is_theocracy
			highest_held_title_tier >= tier_duchy
		}
	}
	this = scope:secondary_recipient.faith
}
NOR = {
	scope:puppet_or_actor ?= scope:secondary_recipient
	scope:puppet_or_actor.faith.religious_head ?= scope:puppet_or_actor
	scope:puppet_or_actor.faith.religious_head ?= scope:secondary_recipient
	AND = {
		NOT = {
			exists = scope:puppet_or_actor.faith.religious_head
		}
		OR = {
			scope:secondary_recipient.rite.head_of_rite ?= scope:puppet_or_actor
			scope:secondary_recipient.rite.head_of_rite ?= scope:secondary_recipient
		}
	}
}

As written in game/common/character_interactions/00_religious_interactions.txt.

trigger_if = {
	limit = {
		NOT = {
			scope:secondary_recipient = {
				petition_head_of_faith_religious_authority_is_trigger = {
					CHARACTER = scope:recipient
				}
			}
		}
	}
	custom_tooltip = {
		text = no_valid_excommunicator_tt
		scope:puppet_or_actor.faith = {
			any_faith_subordinate = {
				highest_held_title_tier >= tier_duchy
				save_temporary_scope_as = cleric_temp
				scope:secondary_recipient = {
					pam_valid_excommunication_target_trigger = {
						EXCOMMUNICATOR = scope:cleric_temp
					}
				}
			}
		}
	}
	scope:secondary_recipient.highest_held_title_tier < tier_empire
}
trigger_if = {
	limit = {
		NOT = {
			scope:puppet_or_actor ?= scope:actor
		}
	}
	scope:secondary_recipient = {
		NOT = {
			has_strong_hook = scope:puppet_or_actor
		}
	}
}
trigger_if = {
	limit = {
		petition_head_of_faith_excommunication_target_requires_petition_trigger = yes
		NOT = {
			scope:excommunication_hook = yes
		}
	}
	scope:puppet_or_actor = {
		piety >= massive_piety_value
	}
}
trigger_else = {
	scope:puppet_or_actor = {
		piety >= request_excommunication_piety_cost_value
	}
}
scope:secondary_recipient = {
	NOR = {
		has_trait = excommunicated
		has_character_modifier = excommunication_recently_lifted
	}
	age >= 12
}
scope:puppet_or_actor = {
	NOT = {
		has_trait = excommunicated
	}
	custom_tooltip = {
		text = HOF_INTERACTION_UNREFORMED_FAITH
		NOT = {
			faith = {
				has_doctrine_parameter = unreformed
			}
		}
	}
	NOT = {
		is_at_war_with = scope:recipient
	}
}
custom_tooltip = {
	text = cannot_take_overt_hostile_actions_against_diarch.tt
	NOT = {
		scope:recipient ?= scope:puppet_or_actor.diarch
	}
}
scope:secondary_recipient = {
	custom_tooltip = {
		text = cannot_excommunicate_antipope_protected_tt
		NOT = {
			pam_antipope_protected_from_excommunication_trigger = {
				EXCOMMUNICATOR = scope:recipient
			}
		}
	}
}
scope:puppet_or_actor = {
	NOT = {
		has_character_modifier = promised_pilgrimage_to_clergy_modifier
	}
}
trigger_if = {
	limit = {
		scope:puppet_or_actor = {
			government_has_flag = government_is_theocracy
			highest_held_title_tier >= tier_duchy
		}
	}
	scope:secondary_recipient = {
		custom_tooltip = {
			text = can_excommunicate_directly
			NOT = {
				pam_valid_excommunication_target_trigger = {
					EXCOMMUNICATOR = scope:puppet_or_actor
				}
			}
		}
	}
}
trigger_if = {
	limit = {
		scope:secondary_recipient = {
			government_has_flag = government_is_theocracy
		}
	}
	custom_tooltip = {
		text = secondary_recipient_must_have_superior_tt
		scope:secondary_recipient = {
			OR = {
				AND = {
					exists = superior
				}
				any_liege_or_above = {
					government_has_flag = government_is_theocracy
					faith = scope:secondary_recipient.faith
					NOT = {
						this = scope:puppet_or_actor
					}
				}
			}
		}
	}
}
trigger_if = {
	limit = {
		has_pam_dlc_trigger = yes
	}
	scope:puppet_or_actor = {
		clergy_interaction_generic_piety_level_or_puppet_req_trigger = yes
	}
}
ai_religious_request_blocker_trigger = {
	INTERACTION = request_excommunication_interaction
}

As written in game/common/character_interactions/00_religious_interactions.txt.

on_send = ai_religious_request_blocker_effect = {
	INTERACTION = request_excommunication_interaction
}
on_accept = if = {
	limit = {
		OR = {
			AND = {
				scope:secondary_recipient.highest_held_title_tier < tier_empire
				has_pam_dlc_trigger = no
			}
			AND = {
				scope:secondary_recipient.highest_held_title_tier < tier_kingdom
				has_pam_dlc_trigger = yes
			}
		}
	}
	if = {
		limit = {
			scope:secondary_recipient = {
				is_alive = yes
			}
		}
		if = {
			limit = {
				scope:excommunication_hook = yes
			}
			scope:puppet_or_actor = {
				use_hook = scope:recipient
			}
		}
		scope:puppet_or_actor = {
			if = {
				limit = {
					NAND = {
						rite = {
							rite_has_parameter = tenet_peace_of_god_excommunication
						}
						has_opinion_modifier = {
							modifier = declared_war
							target = scope:secondary_recipient
						}
					}
				}
				add_piety = {
					value = {
						value = request_excommunication_piety_cost_value
						multiply = -1
					}
				}
			}
			trigger_event = {
				id = religious_interaction.1022
			}
			if = {
				limit = {
					any_character_situation = {
						situation_type = the_christian_church
					}
					situation:the_christian_church ?= {
						situation_top_has_catalyst = catalyst_request_excommunication
					}
				}
				if = {
					limit = {
						scope:secondary_recipient = {
							highest_held_title_tier >= tier_kingdom
						}
					}
					situation:the_christian_church = {
						trigger_situation_catalyst = catalyst_request_excommunication
					}
				}
				else = {
					situation:the_christian_church = {
						trigger_situation_catalyst = catalyst_request_excommunication_minor
					}
				}
			}
		}
		excommunicate_character = {
			EXCOMMUNICATOR = scope:recipient
			TARGET_CHARACTER = scope:secondary_recipient
			REQUESTING_CHARACTER = scope:puppet_or_actor
		}
		scope:secondary_recipient = {
			trigger_event = {
				id = religious_interaction.1020
				days = 5
			}
		}
		add_clan_unity_interaction_effect = {
			CHARACTER = scope:puppet_or_actor
			TARGET = scope:recipient
			VALUE = medium_unity_loss
			DESC = clan_unity_request_excommunication.desc
			REVERSE_NON_HOUSE_TARGET = no
		}
		hof_request_accept_consequences_effect = {
			HOF = scope:recipient
		}
	}
}
else = {
	scope:puppet_or_actor = {
		save_scope_as = excom_request
	}
	custom_tooltip = petition_head_of_faith_excommunication_setup_interaction_accept_tt
	petition_head_of_faith_prepare_petition_effect = {
		TYPE = request_excommunication
		HOOK = excommunication_hook
		PIETY_VALUE = massive_piety_value
	}
}
on_decline = hof_request_refuse_consequences_effect = {
	HOF = scope:recipient
	REQUESTER = scope:puppet_or_actor
}
scope:puppet_or_actor = {
	trigger_event = {
		id = religious_interaction.1023
	}
}
add_clan_unity_interaction_effect = {
	CHARACTER = scope:puppet_or_actor
	TARGET = scope:recipient
	VALUE = miniscule_unity_gain
	DESC = clan_unity_excommunication_request_denied.desc
	REVERSE_NON_HOUSE_TARGET = no
}

As written in game/common/character_interactions/00_religious_interactions.txt.