/**
 * 剪贴板能力（契约 §8.4，T-M3-05）。@kit.BasicServicesKit pasteboard。
 *  - gameCopytext：data=文本，写入系统剪贴板。
 *  - gamepastetext：读取剪贴板内容，经 responseCallback 返回（getData 异步，回调延后触发，对 H5 仍是同步回执语义）。
 * 前台应用读取自身剪贴板无需声明权限；失败回空串（H5 不卡死）。
 */
import { pasteboard } from '@kit.BasicServicesKit';
import { BusinessError } from '@kit.BasicServicesKit';
import { BridgeController } from 'feature_bridge';
import { InboundHandlers } from 'contracts';
import { Logger } from 'common';
import { CapabilityContext, CapabilityProvider } from '../core/CapabilityProvider';

export class ClipboardProvider implements CapabilityProvider {
  readonly name: string = 'clipboard';
  private readonly log: Logger = Logger.tag('ClipboardProvider');

  register(bridge: BridgeController, _ctx: CapabilityContext): void {
    bridge.registerHandler(InboundHandlers.GameCopyText, (data: string, _cb: (resp: string) => void) => {
      this.copy(data);
    });
    bridge.registerHandler(InboundHandlers.GamePasteText, (_d: string, cb: (resp: string) => void) => {
      this.paste(cb);
    });
  }

  private copy(text: string): void {
    try {
      const data: pasteboard.PasteData = pasteboard.createData(pasteboard.MIMETYPE_TEXT_PLAIN, text);
      pasteboard.getSystemPasteboard().setData(data)
        .catch((e: BusinessError) => this.log.w(`setData failed: ${e.code} ${e.message}`));
    } catch (e) {
      this.log.w(`copy failed: ${(e as Error).message}`);
    }
  }

  private paste(cb: (resp: string) => void): void {
    pasteboard.getSystemPasteboard().getData()
      .then((data: pasteboard.PasteData) => {
        cb(data.getPrimaryText() ?? '');
      })
      .catch((e: BusinessError) => {
        this.log.w(`getData failed: ${e.code} ${e.message}`);
        cb('');
      });
  }
}