import chalk from 'chalk';
import { Option } from 'nest-commander';
import { WorkspaceActivationStatus } from 'twenty-shared';
import { In, MoreThanOrEqual, Repository } from 'typeorm';

import {
  BaseCommandOptions,
  BaseCommandRunner,
} from 'src/database/commands/base.command';
import { Workspace } from 'src/engine/core-modules/workspace/workspace.entity';
import { WorkspaceDataSource } from 'src/engine/twenty-orm/datasource/workspace.datasource';
import { TwentyORMGlobalManager } from 'src/engine/twenty-orm/twenty-orm-global.manager';
export type ActiveWorkspacesCommandOptions = BaseCommandOptions & {
  workspaceId?: string;
  startFromWorkspaceId?: string;
  workspaceCountLimit?: number;
};

export abstract class ActiveWorkspacesCommandRunner extends BaseCommandRunner {
  private workspaceIds: string[] = [];
  private startFromWorkspaceId: string | undefined;
  private workspaceCountLimit: number | undefined;

  constructor(
    protected readonly workspaceRepository: Repository<Workspace>,
    protected readonly twentyORMGlobalManager: TwentyORMGlobalManager,
  ) {
    super();
  }

  @Option({
    flags: '--start-from-workspace-id [workspace_id]',
    description:
      'Start from a specific workspace id. Workspaces are processed in ascending order of id.',
    required: false,
  })
  parseStartFromWorkspaceId(val: string): string {
    this.startFromWorkspaceId = val;

    return val;
  }

  @Option({
    flags: '--workspace-count-limit [count]',
    description:
      'Limit the number of workspaces to process. Workspaces are processed in ascending order of id.',
    required: false,
  })
  parseWorkspaceCountLimit(val: string): number {
    this.workspaceCountLimit = parseInt(val);

    if (isNaN(this.workspaceCountLimit)) {
      throw new Error('Workspace count limit must be a number');
    }

    if (this.workspaceCountLimit <= 0) {
      throw new Error('Workspace count limit must be greater than 0');
    }

    return this.workspaceCountLimit;
  }

  @Option({
    flags: '-w, --workspace-id [workspace_id]',
    description:
      'workspace id. Command runs on all active workspaces if not provided.',
    required: false,
  })
  parseWorkspaceId(val: string): string[] {
    this.workspaceIds.push(val);

    return this.workspaceIds;
  }

  protected async fetchActiveWorkspaceIds(): Promise<string[]> {
    const activeWorkspaces = await this.workspaceRepository.find({
      select: ['id'],
      where: {
        activationStatus: In([
          WorkspaceActivationStatus.ACTIVE,
          WorkspaceActivationStatus.SUSPENDED,
        ]),
        ...(this.startFromWorkspaceId
          ? { id: MoreThanOrEqual(this.startFromWorkspaceId) }
          : {}),
      },
      order: {
        id: 'ASC',
      },
      take: this.workspaceCountLimit,
    });

    return activeWorkspaces.map((workspace) => workspace.id);
  }

  protected logWorkspaceCount(activeWorkspaceIds: string[]): void {
    if (!activeWorkspaceIds.length) {
      this.logger.log(chalk.yellow('No workspace found'));
    } else {
      this.logger.log(
        chalk.green(
          `Running command on ${activeWorkspaceIds.length} workspaces`,
        ),
      );
    }
  }

  override async executeBaseCommand(
    passedParams: string[],
    options: BaseCommandOptions,
  ): Promise<void> {
    const activeWorkspaceIds =
      this.workspaceIds.length > 0
        ? this.workspaceIds
        : await this.fetchActiveWorkspaceIds();

    this.logWorkspaceCount(activeWorkspaceIds);

    if (options.dryRun) {
      this.logger.log(chalk.yellow('Dry run mode: No changes will be applied'));
    }

    await this.executeActiveWorkspacesCommand(
      passedParams,
      options,
      activeWorkspaceIds,
    );
  }

  protected async processEachWorkspaceWithWorkspaceDataSource(
    workspaceIds: string[],
    callback: ({
      workspaceId,
      index,
      total,
      dataSource,
    }: {
      workspaceId: string;
      index: number;
      total: number;
      dataSource: WorkspaceDataSource;
    }) => Promise<void>,
  ): Promise<void> {
    this.logger.log(
      chalk.green(`Running command on ${workspaceIds.length} workspaces`),
    );
    for (const [index, workspaceId] of workspaceIds.entries()) {
      this.logger.log(
        chalk.green(
          `Processing workspace ${workspaceId} (${index + 1}/${
            workspaceIds.length
          })`,
        ),
      );

      const dataSource =
        await this.twentyORMGlobalManager.getDataSourceForWorkspace(
          workspaceId,
          false,
        );

      try {
        await callback({
          workspaceId,
          index,
          total: workspaceIds.length,
          dataSource,
        });
      } catch (error) {
        this.logger.error(`Error in workspace ${workspaceId}: ${error}`);
      }
      await this.twentyORMGlobalManager.destroyDataSourceForWorkspace(
        workspaceId,
      );
    }
  }

  protected abstract executeActiveWorkspacesCommand(
    passedParams: string[],
    options: BaseCommandOptions,
    activeWorkspaceIds: string[],
  ): Promise<void>;
}