/**
 * Usage and cost tracking types
 */

/**
 * Usage data for displaying user's mana consumption
 */
export interface UsageData {
	/** Total mana consumed all time */
	total: number;
	/** Mana consumed last week */
	lastWeek: number;
	/** Mana consumed last month */
	lastMonth: number;
	/** Current mana balance */
	currentMana: number;
	/** Maximum mana capacity */
	maxMana: number;
	/** Usage history */
	history?: UsageHistoryEntry[];
}

/**
 * Single usage history entry
 */
export interface UsageHistoryEntry {
	/** Date of usage (ISO string) */
	date: string;
	/** Amount consumed */
	amount: number;
	/** Action type (optional) */
	action?: string;
}

/**
 * Cost item for displaying operation costs
 */
export interface CostItem {
	/** Action description */
	action: string;
	/** Translation key for action */
	actionKey?: string;
	/** Mana cost */
	cost: number;
	/** Icon name */
	icon: string;
}

/**
 * User's credit/mana balance
 */
export interface ManaBalance {
	/** Current mana amount */
	current: number;
	/** Maximum capacity */
	max: number;
	/** Last updated timestamp */
	lastUpdated: string;
}

/**
 * Credit transaction record
 */
export interface CreditTransaction {
	/** Transaction ID */
	id: string;
	/** User ID */
	userId: string;
	/** Amount (positive = credit, negative = debit) */
	amount: number;
	/** Transaction type */
	type: 'purchase' | 'subscription' | 'usage' | 'gift' | 'refund' | 'bonus';
	/** Description */
	description: string;
	/** Timestamp */
	createdAt: string;
	/** Related operation ID (if applicable) */
	operationId?: string;
}

/**
 * Pricing information for operations
 */
export interface OperationPricing {
	/** Operation key */
	operation: string;
	/** Base cost in mana */
	baseCost: number;
	/** Per-unit cost (e.g., per minute, per token) */
	perUnitCost?: number;
	/** Unit type */
	unitType?: 'minute' | 'token' | 'request';
}