import { useMutation, useQueryClient } from "@tanstack/react-query";
import { apiSend } from "../client";
import { keys } from "../keys";
import {
  BudgetSchema,
  SettingsSchema,
  LendingSchema,
  RevalueResultSchema,
  SubscriptionSchema,
} from "../schemas";

// --- transactions ---

export const useCategorize = () => {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (b: { matchKey: string; category: string; kind?: "income" | "expense" }) =>
      apiSend("POST", "/transactions/categorize", b),
    onSuccess: () => {
      qc.invalidateQueries({ queryKey: ["transactions"] });
      qc.invalidateQueries({ queryKey: ["analyze"] });
      qc.invalidateQueries({ queryKey: keys.budget });
    },
  });
};

export const useRenameTxn = () => {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (b: { matchKey: string; name: string }) => apiSend("POST", "/transactions/rename", b),
    onSuccess: () => qc.invalidateQueries({ queryKey: ["transactions"] }),
  });
};

export const useSetNote = () => {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (b: { id: number; note: string }) => apiSend("PUT", `/transactions/${b.id}/note`, { note: b.note }),
    onSuccess: () => qc.invalidateQueries({ queryKey: ["transactions"] }),
  });
};

// --- budget ---

export const usePutBudget = () => {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (b: {
      dayLimit: string;
      weekLimit: string;
      monthLimit: string;
      plannedIncomeManual: string;
      categories: { name: string; day: string; week: string; month: string }[];
    }) => apiSend("PUT", "/budget", b, BudgetSchema),
    onSuccess: () => qc.invalidateQueries({ queryKey: keys.budget }),
  });
};

// --- settings ---

export const useSaveSettings = () => {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (b: {
      holderName: string;
      employer: string;
      salaryKeywords: string[];
      payDays: number[];
      ownAccounts: string[];
      peerAccounts: string[];
      hideAmounts?: boolean;
    }) => apiSend("PUT", "/settings", b, SettingsSchema),
    onSuccess: () => qc.invalidateQueries({ queryKey: keys.settings }),
  });
};

// --- categories ---

export const useCategoryMutations = () => {
  const qc = useQueryClient();
  const invalidate = () => {
    qc.invalidateQueries({ queryKey: keys.categories });
    qc.invalidateQueries({ queryKey: keys.budget });
    qc.invalidateQueries({ queryKey: ["transactions"] });
  };
  const add = useMutation({
    mutationFn: (b: { name: string; kind?: "income" | "expense"; parent?: string; icon?: string }) =>
      apiSend("POST", "/categories", b),
    onSuccess: invalidate,
  });
  const update = useMutation({
    mutationFn: (b: { oldName: string; newName?: string; parent?: string | null; icon?: string | null }) =>
      apiSend("PUT", "/categories", b),
    onSuccess: invalidate,
  });
  const remove = useMutation({
    mutationFn: (name: string) => apiSend("DELETE", `/categories?name=${encodeURIComponent(name)}`),
    onSuccess: invalidate,
  });
  return { add, update, delete: remove };
};

// --- manual assets ---

export const useManualAssetMutations = () => {
  const qc = useQueryClient();
  const invalidate = () => {
    qc.invalidateQueries({ queryKey: keys.manualAssets });
    qc.invalidateQueries({ queryKey: keys.networth });
  };
  const add = useMutation({
    mutationFn: (b: {
      name: string;
      category?: string;
      value: string;
      acquiredValue?: string;
      currency?: string;
      condition?: string;
      isLiability?: boolean;
    }) => apiSend("POST", "/manual-assets", b),
    onSuccess: invalidate,
  });
  const remove = useMutation({
    mutationFn: (name: string) => apiSend("DELETE", `/manual-assets/${encodeURIComponent(name)}`),
    onSuccess: invalidate,
  });
  const revalue = useMutation({
    mutationFn: (name: string) => apiSend("POST", `/manual-assets/${encodeURIComponent(name)}/revalue`, undefined, RevalueResultSchema),
    onSuccess: invalidate,
  });
  return { add, delete: remove, revalue };
};

// --- lending ---

export const useLendingMutations = () => {
  const qc = useQueryClient();
  const invalidate = () => qc.invalidateQueries({ queryKey: keys.lending });
  const create = useMutation({
    mutationFn: (b: { person: string; amount: string; lentOn: string; dueOn?: string; note?: string; txnId?: number }) =>
      apiSend("POST", "/lending", b, LendingSchema),
    onSuccess: invalidate,
  });
  const remove = useMutation({
    mutationFn: (id: number) => apiSend("DELETE", `/lending/${id}`),
    onSuccess: invalidate,
  });
  const addRepayment = useMutation({
    mutationFn: (b: { id: number; amount: string; paidOn: string; note?: string; txnId?: number }) =>
      apiSend("POST", `/lending/${b.id}/repayments`, { amount: b.amount, paidOn: b.paidOn, note: b.note, txnId: b.txnId }, LendingSchema),
    onSuccess: invalidate,
  });
  const deleteRepayment = useMutation({
    mutationFn: (b: { id: number; repaymentId: number }) => apiSend("DELETE", `/lending/${b.id}/repayments/${b.repaymentId}`),
    onSuccess: invalidate,
  });
  return { create, delete: remove, addRepayment, deleteRepayment };
};

// --- subscriptions ---

export const useSubscriptionMutations = () => {
  const qc = useQueryClient();
  const invalidate = () => {
    qc.invalidateQueries({ queryKey: keys.subscriptions });
    qc.invalidateQueries({ queryKey: keys.budget });
  };
  const setSubscription = useMutation({
    mutationFn: (b: { matchKey: string; name?: string; active: boolean }) => apiSend("POST", "/subscriptions", b),
    onSuccess: invalidate,
  });
  const createManualSub = useMutation({
    mutationFn: (b: { name: string; amount: string; category?: string; nextDue?: string }) =>
      apiSend("POST", "/manual-subscriptions", b, SubscriptionSchema),
    onSuccess: invalidate,
  });
  const deleteManualSub = useMutation({
    mutationFn: (id: number) => apiSend("DELETE", `/manual-subscriptions/${id}`),
    onSuccess: invalidate,
  });
  return { setSubscription, createManualSub, deleteManualSub };
};

// --- savings goals ---

export const useSavingsGoalMutations = () => {
  const qc = useQueryClient();
  const invalidate = () => qc.invalidateQueries({ queryKey: keys.budget });
  const post = useMutation({
    mutationFn: (b: {
      originalName?: string;
      name: string;
      target: string;
      monthlyContribution?: string;
      accountId?: number;
      targetDate?: string;
    }) => apiSend("POST", "/savings-goals", b, BudgetSchema),
    onSuccess: invalidate,
  });
  const remove = useMutation({
    mutationFn: (name: string) => apiSend("DELETE", `/savings-goals/${encodeURIComponent(name)}`, undefined, BudgetSchema),
    onSuccess: invalidate,
  });
  return { post, delete: remove };
};