initiative/packages/domain/src/events.ts

import type { ConditionId } from "./conditions.js";
import type { CreatureId } from "./creature-types.js";
import type { PersistentDamageType } from "./persistent-damage.js";
import type { PlayerCharacterId } from "./player-character-types.js";
import type { CombatantId } from "./types.js";

export interface TurnAdvanced {
	readonly type: "TurnAdvanced";
	readonly previousCombatantId: CombatantId;
	readonly newCombatantId: CombatantId;
	readonly roundNumber: number;
}

export interface RoundAdvanced {
	readonly type: "RoundAdvanced";
	readonly newRoundNumber: number;
}

export interface CombatantAdded {
	readonly type: "CombatantAdded";
	readonly combatantId: CombatantId;
	readonly name: string;
	readonly position: number;
	readonly init?: {
		readonly maxHp?: number;
		readonly ac?: number;
		readonly initiative?: number;
		readonly creatureId?: CreatureId;
		readonly color?: string;
		readonly icon?: string;
		readonly playerCharacterId?: PlayerCharacterId;
	};
}

export interface CombatantRemoved {
	readonly type: "CombatantRemoved";
	readonly combatantId: CombatantId;
	readonly name: string;
}

export interface CombatantUpdated {
	readonly type: "CombatantUpdated";
	readonly combatantId: CombatantId;
	readonly oldName: string;
	readonly newName: string;
}

export interface InitiativeSet {
	readonly type: "InitiativeSet";
	readonly combatantId: CombatantId;
	readonly previousValue: number | undefined;
	readonly newValue: number | undefined;
}

export interface MaxHpSet {
	readonly type: "MaxHpSet";
	readonly combatantId: CombatantId;
	readonly previousMaxHp: number | undefined;
	readonly newMaxHp: number | undefined;
	readonly previousCurrentHp: number | undefined;
	readonly newCurrentHp: number | undefined;
}

export interface CurrentHpAdjusted {
	readonly type: "CurrentHpAdjusted";
	readonly combatantId: CombatantId;
	readonly previousHp: number;
	readonly newHp: number;
	readonly delta: number;
}

export interface TempHpSet {
	readonly type: "TempHpSet";
	readonly combatantId: CombatantId;
	readonly previousTempHp: number | undefined;
	readonly newTempHp: number | undefined;
}

export interface TurnRetreated {
	readonly type: "TurnRetreated";
	readonly previousCombatantId: CombatantId;
	readonly newCombatantId: CombatantId;
	readonly roundNumber: number;
}

export interface RoundRetreated {
	readonly type: "RoundRetreated";
	readonly newRoundNumber: number;
}

export interface AcSet {
	readonly type: "AcSet";
	readonly combatantId: CombatantId;
	readonly previousAc: number | undefined;
	readonly newAc: number | undefined;
}

export interface CrSet {
	readonly type: "CrSet";
	readonly combatantId: CombatantId;
	readonly previousCr: string | undefined;
	readonly newCr: string | undefined;
}

export interface SideSet {
	readonly type: "SideSet";
	readonly combatantId: CombatantId;
	readonly previousSide: "party" | "enemy" | undefined;
	readonly newSide: "party" | "enemy";
}

export interface ConditionAdded {
	readonly type: "ConditionAdded";
	readonly combatantId: CombatantId;
	readonly condition: ConditionId;
	readonly value?: number;
}

export interface ConditionRemoved {
	readonly type: "ConditionRemoved";
	readonly combatantId: CombatantId;
	readonly condition: ConditionId;
	readonly value?: number;
}

export interface ConcentrationStarted {
	readonly type: "ConcentrationStarted";
	readonly combatantId: CombatantId;
}

export interface ConcentrationEnded {
	readonly type: "ConcentrationEnded";
	readonly combatantId: CombatantId;
}

export interface PersistentDamageAdded {
	readonly type: "PersistentDamageAdded";
	readonly combatantId: CombatantId;
	readonly damageType: PersistentDamageType;
	readonly formula: string;
}

export interface PersistentDamageRemoved {
	readonly type: "PersistentDamageRemoved";
	readonly combatantId: CombatantId;
	readonly damageType: PersistentDamageType;
}

export interface CreatureAdjustmentSet {
	readonly type: "CreatureAdjustmentSet";
	readonly combatantId: CombatantId;
	readonly adjustment: "weak" | "elite" | undefined;
}

export interface EncounterCleared {
	readonly type: "EncounterCleared";
	readonly combatantCount: number;
}

export interface PlayerCharacterCreated {
	readonly type: "PlayerCharacterCreated";
	readonly playerCharacterId: PlayerCharacterId;
	readonly name: string;
}

export interface PlayerCharacterUpdated {
	readonly type: "PlayerCharacterUpdated";
	readonly playerCharacterId: PlayerCharacterId;
	readonly oldName: string;
	readonly newName: string;
}

export interface PlayerCharacterDeleted {
	readonly type: "PlayerCharacterDeleted";
	readonly playerCharacterId: PlayerCharacterId;
	readonly name: string;
}

export type DomainEvent =
	| TurnAdvanced
	| RoundAdvanced
	| CombatantAdded
	| CombatantRemoved
	| CombatantUpdated
	| InitiativeSet
	| MaxHpSet
	| CurrentHpAdjusted
	| TempHpSet
	| TurnRetreated
	| RoundRetreated
	| AcSet
	| CrSet
	| SideSet
	| ConditionAdded
	| ConditionRemoved
	| ConcentrationStarted
	| ConcentrationEnded
	| PersistentDamageAdded
	| PersistentDamageRemoved
	| CreatureAdjustmentSet
	| EncounterCleared
	| PlayerCharacterCreated
	| PlayerCharacterUpdated
	| PlayerCharacterDeleted;