import {
  buildCreatorIntentFromEightAnchorContent,
  buildAnchorPackFromEightAnchorContent,
} from '../eightAnchorCompatibilityService.js';
import { rebuildRoleAssetCoverage } from '../customWorldAgentRoleAssetStateService.js';
import type { CustomWorldAgentActionExecutor } from './types.js';
import type { CustomWorldAgentFoundationDraftService } from '../customWorldAgentFoundationDraftService.js';
import type { CustomWorldAgentAutoAssetService } from '../customWorldAgentAutoAssetService.js';
import type { CustomWorldAgentSnapshotBuilder } from '../customWorldAgentSnapshotBuilder.js';
import type { CustomWorldAgentSessionStore } from '../customWorldAgentSessionStore.js';
import { buildFoundationDraftAssistantMessage } from './helpers.js';
import {
  buildCheckpointSnapshot,
  createOperationUpdater,
  getRequiredSession,
} from './executorShared.js';

export function createDraftFoundationExecutor(params: {
  sessionStore: CustomWorldAgentSessionStore;
  foundationDraftService: CustomWorldAgentFoundationDraftService;
  autoAssetService: CustomWorldAgentAutoAssetService | null;
  snapshotBuilder: CustomWorldAgentSnapshotBuilder;
}): CustomWorldAgentActionExecutor<'draft_foundation'> {
  return async ({ userId, sessionId, operationId }) => {
    const updateOperation = createOperationUpdater({
      sessionStore: params.sessionStore,
      userId,
      sessionId,
      operationId,
    });

    try {
      await updateOperation({
        status: 'running',
        phaseLabel: '整理世界骨架',
        phaseDetail: '正在校验已确认锚点，并准备第一版世界框架生成链路。',
        progress: 12,
      });

      const latestSession = await getRequiredSession({
        sessionStore: params.sessionStore,
        userId,
        sessionId,
      });
      if (latestSession.progressPercent < 100) {
        throw new Error('session progressPercent is below 100');
      }

      const creatorIntent = buildCreatorIntentFromEightAnchorContent(
        latestSession.anchorContent,
      );
      const anchorPack = buildAnchorPackFromEightAnchorContent(
        latestSession.anchorContent,
        latestSession.progressPercent,
      );
      const draftProfile = await params.foundationDraftService.generate({
        creatorIntent,
        anchorPack,
        anchorContent: latestSession.anchorContent,
        onProgress: async (progress) => {
          await updateOperation({
            status: 'running',
            phaseLabel: progress.phaseLabel,
            phaseDetail: progress.phaseDetail,
            progress: progress.progress,
          });
        },
      });

      const draftWithAssets = params.autoAssetService
        ? await params.autoAssetService.populateDraftAssets({
            draftProfile,
            onProgress: async (progress) => {
              await updateOperation({
                status: 'running',
                phaseLabel: progress.phaseLabel,
                phaseDetail: progress.phaseDetail,
                progress: progress.progress,
              });
            },
          })
        : {
            draftProfile,
            assetCoverage: rebuildRoleAssetCoverage(draftProfile),
            warnings: [],
          };

      await updateOperation({
        phaseLabel: '编译草稿卡',
        phaseDetail: '正在把世界底稿整理成可浏览的卡片摘要和详情结构。',
        progress: 98,
      });

      const nextState = params.snapshotBuilder.buildFoundationDraftState({
        creatorIntent,
        anchorPack,
        draftProfile:
          draftWithAssets.draftProfile as unknown as Record<string, unknown>,
        assetCoverage: draftWithAssets.assetCoverage,
      });

      await params.sessionStore.replaceDerivedState(userId, sessionId, nextState);
      await params.sessionStore.appendCheckpoint(userId, sessionId, {
        label: '世界底稿 V1',
        snapshot: buildCheckpointSnapshot(latestSession, nextState),
      });
      await params.sessionStore.appendMessage(
        userId,
        sessionId,
        buildFoundationDraftAssistantMessage({
          relatedOperationId: operationId,
          draftProfile: draftWithAssets.draftProfile,
          warnings: draftWithAssets.warnings,
        }),
      );

      await updateOperation({
        status: 'completed',
        phaseLabel: '世界底稿已生成',
        phaseDetail:
          draftWithAssets.warnings.length > 0
            ? `第一版世界底稿和 ${(nextState.draftCards ?? []).length} 张草稿卡已经整理完成，另有 ${draftWithAssets.warnings.length} 项资产补齐待后续处理。`
            : `第一版世界底稿和 ${(nextState.draftCards ?? []).length} 张草稿卡已经整理完成。`,
        progress: 100,
        error: null,
      });
    } catch (error) {
      const currentOperation = await params.sessionStore.getOperation(
        userId,
        sessionId,
        operationId,
      );
      await updateOperation({
        status: 'failed',
        phaseLabel: currentOperation?.phaseLabel?.trim() || '底稿生成失败',
        phaseDetail:
          currentOperation?.phaseDetail?.trim() ||
          '这一轮没有成功把设定编成世界底稿。',
        progress: 100,
        error:
          error instanceof Error ? error.message : 'draft foundation failed',
      });
    }
  };
}