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import { and, eq, gte, lte, sql } from 'drizzle-orm';
import { db } from '@/db/client';
import { incomes, oneTimeExpenses, recurringExpenses, users } from '@/db/schema';
import { calcularSalarioLiquido } from '@/utils/tax-calculator';
export interface DashboardData {
user: {
id: number;
name: string;
gross_salary: number;
net_salary_override: number | null;
};
period: {
month: number;
year: number;
};
salary: {
gross: number;
calculated_net: number;
effective_net: number;
inss_discount: number;
irrf_discount: number;
has_override: boolean;
};
expenses: {
recurring_total: number;
one_time_total: number;
total: number;
recurring_list: { id: number; name: string; amount: number; category: string }[];
one_time_list: {
id: number;
name: string;
amount: number;
category: string;
expense_date: string;
}[];
};
balance: {
available: number;
/** Percentual do salário líquido comprometido com despesas (0-100) */
expense_ratio: number;
};
}
export async function getDashboard(
userId: number,
referenceMonth: number,
referenceYear: number,
): Promise<DashboardData | null> {
// 1. Busca o usuário
const [user] = await db
.select()
.from(users)
.where(eq(users.id, userId))
.limit(1);
if (!user) return null;
// 2. Calcula o salário via tabela INSS/IRRF
const taxResult = calcularSalarioLiquido(user.gross_salary);
// 3. Salário efetivo: usa override do usuário ou o calculado
const effectiveNet = user.net_salary_override ?? taxResult.salarioLiquidoCalculado;
// 4. Tenta encontrar um registro de renda para o mês/ano pedido
const [incomeRecord] = await db
.select()
.from(incomes)
.where(
and(
eq(incomes.user_id, userId),
eq(incomes.reference_month, referenceMonth),
eq(incomes.reference_year, referenceYear),
),
)
.limit(1);
// Se existir registro de renda para o mês, usa os valores dele
const salaryData = incomeRecord
? {
gross: incomeRecord.gross_salary,
calculated_net: incomeRecord.calculated_net_salary,
effective_net: incomeRecord.effective_net_salary,
inss_discount:
incomeRecord.gross_salary - incomeRecord.calculated_net_salary - 0, // simplificado
irrf_discount: 0,
has_override: incomeRecord.effective_net_salary !== incomeRecord.calculated_net_salary,
}
: {
gross: user.gross_salary,
calculated_net: taxResult.salarioLiquidoCalculado,
effective_net: effectiveNet,
inss_discount: taxResult.descontoINSS,
irrf_discount: taxResult.descontoIRRF,
has_override: user.net_salary_override !== null,
};
// 5. Busca gastos recorrentes ATIVOS e vigentes no mês/ano pedido
const refDateStr = `${referenceYear}-${String(referenceMonth).padStart(2, '0')}-01`;
const lastDay = new Date(referenceYear, referenceMonth, 0).getDate();
const refDateEndStr = `${referenceYear}-${String(referenceMonth).padStart(2, '0')}-${String(lastDay).padStart(2, '0')}`;
const recurringList = await db
.select()
.from(recurringExpenses)
.where(
and(
eq(recurringExpenses.user_id, userId),
eq(recurringExpenses.is_active, true),
lte(recurringExpenses.starts_at, refDateEndStr),
// ends_at IS NULL ou ends_at >= início do mês
sql`(${recurringExpenses.ends_at} IS NULL OR ${recurringExpenses.ends_at} >= ${refDateStr})`,
),
);
// 6. Busca gastos avulsos do mês/ano pedido
const oneTimeList = await db
.select()
.from(oneTimeExpenses)
.where(
and(
eq(oneTimeExpenses.user_id, userId),
gte(oneTimeExpenses.expense_date, refDateStr),
lte(oneTimeExpenses.expense_date, refDateEndStr),
),
)
.orderBy(oneTimeExpenses.expense_date);
// 7. Calcula totais
const recurringTotal = recurringList.reduce((sum, e) => {
return sum + (e.type === 'income' ? -e.amount : e.amount);
}, 0);
const oneTimeTotal = oneTimeList.reduce((sum, e) => {
return sum + (e.type === 'income' ? -e.amount : e.amount);
}, 0);
const totalExpenses = parseFloat((recurringTotal + oneTimeTotal).toFixed(2));
const available = parseFloat((salaryData.effective_net - totalExpenses).toFixed(2));
const expenseRatio =
salaryData.effective_net > 0
? parseFloat(((totalExpenses / salaryData.effective_net) * 100).toFixed(1))
: 0;
return {
user: {
id: user.id,
name: user.name,
gross_salary: user.gross_salary,
net_salary_override: user.net_salary_override,
},
period: { month: referenceMonth, year: referenceYear },
salary: salaryData,
expenses: {
recurring_total: parseFloat(recurringTotal.toFixed(2)),
one_time_total: parseFloat(oneTimeTotal.toFixed(2)),
total: totalExpenses,
recurring_list: recurringList.map((e) => ({
id: e.id,
name: e.name,
amount: e.amount,
category: e.category,
type: e.type,
})),
one_time_list: oneTimeList.map((e) => ({
id: e.id,
name: e.name,
amount: e.amount,
category: e.category,
type: e.type,
expense_date: e.expense_date,
})),
},
balance: {
available,
expense_ratio: expenseRatio,
},
};
}
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