import { ApiProperty } from "@nestjs/swagger"
import {
  IsNotEmpty,
  IsOptional,
  IsInt,
  IsString,
  Min,
  Max,
} from "class-validator"
import { validationMessage } from "../../../utils/helpers"
import { messageKey } from "../../../constants/message-keys"

export class ProcessPayrollDto {
  @ApiProperty({
    description: "Month (1-12)",
    example: 11,
  })
  @IsNotEmpty({
    message: validationMessage(messageKey.field_required, {
      ":field": "month",
    }),
  })
  @IsInt({
    message: validationMessage(messageKey.field_type_validation_error, {
      ":field": "month",
      ":type": "integer",
    }),
  })
  @Min(1, {
    message: validationMessage(messageKey.field_min_validation_error, {
      ":field": "month",
      ":min": "1",
    }),
  })
  @Max(12, {
    message: validationMessage(messageKey.field_max_validation_error, {
      ":field": "month",
      ":max": "12",
    }),
  })
  month: number

  @ApiProperty({
    description: "Year",
    example: 2025,
  })
  @IsNotEmpty({
    message: validationMessage(messageKey.field_required, {
      ":field": "year",
    }),
  })
  @IsInt({
    message: validationMessage(messageKey.field_type_validation_error, {
      ":field": "year",
      ":type": "integer",
    }),
  })
  @Min(2020, {
    message: validationMessage(messageKey.field_min_validation_error, {
      ":field": "year",
      ":min": "2020",
    }),
  })
  year: number

  @ApiProperty({
    description:
      "Department ID (optional - if not provided, process all departments)",
    example: 1,
    required: false,
  })
  @IsOptional()
  @IsInt({
    message: validationMessage(messageKey.field_type_validation_error, {
      ":field": "department_id",
      ":type": "integer",
    }),
  })
  department_id?: number
}

export class EmployeeSalarySlipsDto {
  @ApiProperty({
    description: "Page number for pagination",
    example: 1,
    required: false,
  })
  @IsOptional()
  @IsInt({
    message: validationMessage(messageKey.field_type_validation_error, {
      ":field": "page",
      ":type": "integer",
    }),
  })
  page?: number

  @ApiProperty({
    description: "Number of records per page",
    example: 10,
    required: false,
  })
  @IsOptional()
  @IsInt({
    message: validationMessage(messageKey.field_type_validation_error, {
      ":field": "limit",
      ":type": "integer",
    }),
  })
  limit?: number

  @ApiProperty({
    description: "Search by month name (e.g., December) or year (e.g., 2025)",
    example: "December",
    required: false,
  })
  @IsOptional()
  @IsString({
    message: validationMessage(messageKey.field_type_validation_error, {
      ":field": "search",
      ":type": "string",
    }),
  })
  search?: string

  @ApiProperty({
    description: "Filter by specific month (1-12)",
    example: 12,
    required: false,
  })
  @IsOptional()
  @IsInt({
    message: validationMessage(messageKey.field_type_validation_error, {
      ":field": "month",
      ":type": "integer",
    }),
  })
  month?: number

  @ApiProperty({
    description: "Filter by specific year",
    example: 2025,
    required: false,
  })
  @IsOptional()
  @IsInt({
    message: validationMessage(messageKey.field_type_validation_error, {
      ":field": "year",
      ":type": "integer",
    }),
  })
  year?: number
}