export type GoalStatus = "ACTIVE" | "COMPLETED" | "PAUSED" | "CANCELLED";
export type GoalPriority = "LOW" | "MEDIUM" | "HIGH";
export type AutoSaveFrequency = "DAILY" | "WEEKLY" | "MONTHLY";

export interface Goal {
  id: string;
  titleRu: string;
  descriptionRu?: string;
  targetAmount: number;
  currentAmount: number;
  targetDate?: string;
  status: GoalStatus;
  priority: GoalPriority;
  icon?: string;
  color?: string;
  autoSaveEnabled: boolean;
  autoSaveAmount?: number;
  autoSaveFrequency?: AutoSaveFrequency;
  createdAt: string;
  updatedAt: string;
}

export interface CreateGoalBody {
  titleRu: string;
  descriptionRu?: string;
  targetAmount: number;
  currentAmount?: number;
  targetDate?: string;
  priority?: GoalPriority;
  icon?: string;
  color?: string;
  autoSaveEnabled?: boolean;
  autoSaveAmount?: number;
  autoSaveFrequency?: AutoSaveFrequency;
}

export interface UpdateGoalBody {
  titleRu?: string;
  descriptionRu?: string;
  targetAmount?: number;
  targetDate?: string;
  status?: GoalStatus;
  priority?: GoalPriority;
  icon?: string;
  color?: string;
  autoSaveEnabled?: boolean;
  autoSaveAmount?: number;
  autoSaveFrequency?: AutoSaveFrequency;
}

export interface GoalFundsBody {
  amount: number;
  note?: string;
}

export interface GoalsSummary {
  totalGoals: number;
  activeGoals: number;
  completedGoals: number;
  totalTargetAmount: number;
  totalCurrentAmount: number;
  overallProgress: number;
}

export interface BaseResponse {
  success: boolean;
  timestamp: string;
}

export interface GoalsListResponse extends BaseResponse {
  data: Goal[];
}

export interface GoalResponse extends BaseResponse {
  data: Goal;
}

export interface GoalsSummaryResponse extends BaseResponse {
  data: GoalsSummary;
}

export interface GoalsInitialState {
  goals: Goal[];
  summary: GoalsSummary | null;
  upcoming: Goal[];
  isLoading: boolean;
  error: string | undefined;
}

export interface GoalsUpdateArgs {
  id: string;
  body: UpdateGoalBody;
}

export interface GoalsFundsArgs {
  id: string;
  body: GoalFundsBody;
}

export type GoalsListApi = (params?: {
  status?: GoalStatus;
}) => Promise<GoalsListResponse>;
export type GoalsGetApi = (id: string) => Promise<GoalResponse>;
export type GoalsCreateApi = (body: CreateGoalBody) => Promise<GoalResponse>;
export type GoalsUpdateApi = (args: GoalsUpdateArgs) => Promise<GoalResponse>;
export type GoalsDeleteApi = (id: string) => Promise<void>;
export type GoalsAddFundsApi = (args: GoalsFundsArgs) => Promise<GoalResponse>;
export type GoalsWithdrawApi = (args: GoalsFundsArgs) => Promise<GoalResponse>;
export type GoalsSummaryApi = () => Promise<GoalsSummaryResponse>;
export type GoalsUpcomingApi = (days?: number) => Promise<GoalsListResponse>;