import {
  IsString,
  IsOptional,
  IsIn,
  IsObject,
  IsArray,
} from "class-validator";

/**
 * DTO for querying chart widget data
 */
export class ChartQueryDto {
  @IsString({ message: "chartType must be a string" })
  @IsIn(["bar", "line", "pie", "donut"], {
    message: "chartType must be one of: bar, line, pie, donut",
  })
  chartType!: "bar" | "line" | "pie" | "donut";

  @IsString({ message: "dataSource must be a string" })
  @IsIn(["tasks", "events", "projects"], {
    message: "dataSource must be one of: tasks, events, projects",
  })
  dataSource!: "tasks" | "events" | "projects";

  @IsString({ message: "groupBy must be a string" })
  @IsIn(["status", "priority", "project", "day", "week", "month"], {
    message: "groupBy must be one of: status, priority, project, day, week, month",
  })
  groupBy!: "status" | "priority" | "project" | "day" | "week" | "month";

  @IsOptional()
  @IsObject({ message: "filter must be an object" })
  filter?: Record<string, unknown>;

  @IsOptional()
  @IsArray({ message: "colors must be an array" })
  colors?: string[];
}