package models

import (
	"time"

	"gorm.io/gorm"
)

// Transaction kinds for the ledger. 인센티브 지급 links the accounting side to the
// incentive engine so the "가상 포인트 vs 실제 현금" gap can be reconciled.
const (
	TxnIncome      = "income"      // 수입 (계약 입금 등)
	TxnExpense     = "expense"     // 비용
	TxnTax         = "tax"         // 세금
	TxnPayroll     = "payroll"     // 급여
	TxnIncentive   = "incentive"   // 인센티브 지급
)

// Account is a chart-of-accounts entry (계정과목).
type Account struct {
	Base
	Code      string    `json:"code"`
	Name      string    `json:"name"`
	Type      string    `json:"type"` // income | expense | tax | asset | liability
	CreatedAt time.Time `json:"createdAt"`
}

func (m *Account) BeforeCreate(*gorm.DB) error { m.ensureID(); return nil }

// Transaction is a single ledger line. Optional ProjectID / MemberEmail tie it to
// project profitability and per-member incentive payouts.
type Transaction struct {
	Base
	Date        string    `gorm:"index" json:"date"` // YYYY-MM-DD
	Kind        string    `gorm:"index" json:"kind"`
	AccountID   *string   `json:"accountId"`
	Amount      float64   `json:"amount"` // signed (income +, expense/tax/payroll −)
	ProjectID   *string   `gorm:"index" json:"projectId"`
	MemberEmail *string   `json:"memberEmail"`
	Counterparty string   `json:"counterparty"`
	Memo        string    `json:"memo"`
	CreatedBy   string    `json:"createdBy"`
	CreatedAt   time.Time `json:"createdAt"`
	UpdatedAt   time.Time `json:"updatedAt"`
}

func (m *Transaction) BeforeCreate(*gorm.DB) error { m.ensureID(); return nil }

// TaxRecord captures periodic tax obligations (부가세/원천세 등) for the dashboard.
type TaxRecord struct {
	Base
	Period    string    `json:"period"` // YYYY-MM or YYYY-Q
	Type      string    `json:"type"`
	Base_     float64   `gorm:"column:base" json:"base"`
	Amount    float64   `json:"amount"`
	DueDate   string    `json:"dueDate"`
	Paid      bool      `json:"paid"`
	Memo      string    `json:"memo"`
	CreatedAt time.Time `json:"createdAt"`
	UpdatedAt time.Time `json:"updatedAt"`
}

func (m *TaxRecord) BeforeCreate(*gorm.DB) error { m.ensureID(); return nil }