import type {
  SectionBlock, HeaderBlock, InputBlock, DividerBlock, ActionsBlock,
  Button, Overflow, Datepicker, Select, RadioButtons, Checkboxes, Action, MultiSelect, PlainTextInput, Option,
} from '@slack/types';


export function divider(): DividerBlock {
  return {
    type: 'divider',
  };
}

export function markdownHeaderBlock(text: string): HeaderBlock {
  return {
    type: 'header',
    text: {
      type: 'plain_text',
      text,
    },
  };
}

export function markdownSectionBlock(text: string): SectionBlock {
  return {
    type: 'section',
    text: {
      type: 'mrkdwn',
      text,
    },
  };
}

export function inputSectionBlock(blockId: string, labelText: string, actionId: string, isMultiline: boolean, placeholder: string): InputBlock {
  return {
    type: 'input',
    block_id: blockId,
    label: {
      type: 'plain_text',
      text: labelText,
    },
    element: {
      type: 'plain_text_input',
      action_id: actionId,
      multiline: isMultiline,
      placeholder: {
        type: 'plain_text',
        text: placeholder,
      },
    },
  };
}

export function actionsBlock(...elements: (Button | Overflow | Datepicker | Select | RadioButtons | Checkboxes | Action)[]): ActionsBlock {
  return {
    type: 'actions',
    elements: [
      ...elements,
    ],
  };
}

export function inputBlock(
    element: Select | MultiSelect | Datepicker | PlainTextInput | RadioButtons | Checkboxes, blockId: string, labelText: string,
): InputBlock {
  return {
    type: 'input',
    block_id: blockId,
    element,
    label: {
      type: 'plain_text',
      text: labelText,
    },
  };
}

type ButtonElement = {
  text: string,
  actionId: string,
  style?: string,
  value?:string
}

/**
 * Button element
 * https://api.slack.com/reference/block-kit/block-elements#button
 */
export function buttonElement({
  text, actionId, style, value,
}:ButtonElement): Button {
  const button: Button = {
    type: 'button',
    text: {
      type: 'plain_text',
      text,
    },
    action_id: actionId,
    value,
  };
  if (style === 'primary' || style === 'danger') {
    button.style = style;
  }
  return button;
}

/**
 * Option object
 * https://api.slack.com/reference/block-kit/composition-objects#option
 */
export function checkboxesElementOption(text: string, description: string, value: string): Option {
  return {
    text: {
      type: 'mrkdwn',
      text,
    },
    description: {
      type: 'plain_text',
      text: description,
    },
    value,
  };
}