import {
  Entity,
  PrimaryGeneratedColumn,
  Column,
  ManyToOne,
  JoinColumn,
  Index,
} from "typeorm"
import { BaseEntity } from "../../common/entities/base.entity"
import { Company } from "../../company/entities/company.entity"
import { Employee } from "../../employees/entities/employee.entity"
import { PayrollEntry } from "./payroll-entry.entity"

export enum ComponentType {
  EARNING = "earning",
  DEDUCTION = "deduction",
}

export enum CalculationType {
  FIXED = "fixed",
  PERCENTAGE = "percentage",
}

@Entity("payroll_entry_components")
@Index(["payroll_entry_id", "component_key"])
@Index(["company_id", "employee_id"])
export class PayrollEntryComponent extends BaseEntity {
  @PrimaryGeneratedColumn()
  id: number

  @Column({ type: "int", nullable: false })
  company_id: number

  @Column({ type: "int", nullable: false })
  payroll_entry_id: number

  @Column({ type: "int", nullable: false })
  employee_id: number

  @Column({
    type: "varchar",
    length: 255,
    nullable: false,
  })
  component_key: string

  @Column({
    type: "varchar",
    length: 255,
    nullable: false,
  })
  component_label: string

  @Column({
    type: "enum",
    enum: ComponentType,
    nullable: false,
  })
  component_type: ComponentType

  @Column({
    type: "enum",
    enum: CalculationType,
    nullable: false,
  })
  calculation_type: CalculationType

  @Column({
    type: "decimal",
    precision: 12,
    scale: 2,
    nullable: false,
    comment: "value defined in salary_settings",
  })
  calculation_value: number

  @Column({
    type: "decimal",
    precision: 12,
    scale: 2,
    nullable: false,
    comment: "final calculated amount",
  })
  amount: number

  @ManyToOne(() => Company)
  @JoinColumn({ name: "company_id" })
  company: Company

  @ManyToOne(() => PayrollEntry)
  @JoinColumn({ name: "payroll_entry_id" })
  payroll_entry: PayrollEntry

  @ManyToOne(() => Employee)
  @JoinColumn({ name: "employee_id" })
  employee: Employee
}