import { Controller, Get, Post, HttpException, HttpStatus } from '@nestjs/common';
import { ApiTags, ApiOperation } from '@nestjs/swagger';
import { ConfigService } from '@nestjs/config';
import { PrismaService } from '../../infrastructure/persistence/prisma/prisma.service';
import { NetworkSyncService } from '../../application/services/network-sync.service';
import { Public } from '../../shared/guards/jwt-auth.guard';

@ApiTags('Admin')
@Controller('admin')
export class AdminController {
  constructor(
    private readonly prisma: PrismaService,
    private readonly networkSyncService: NetworkSyncService,
    private readonly configService: ConfigService,
  ) {}

  @Get('accounts/sync')
  @Public()
  @ApiOperation({ summary: '获取所有挖矿账户用于同步' })
  async getAllAccountsForSync() {
    const accounts = await this.prisma.miningAccount.findMany({
      select: {
        accountSequence: true,
        totalMined: true,
        availableBalance: true,
        frozenBalance: true,
        totalContribution: true,
        createdAt: true,
        updatedAt: true,
      },
    });

    return {
      accounts: accounts.map((acc) => ({
        accountSequence: acc.accountSequence,
        totalMined: acc.totalMined.toString(),
        availableBalance: acc.availableBalance.toString(),
        frozenBalance: acc.frozenBalance.toString(),
        totalContribution: acc.totalContribution.toString(),
        createdAt: acc.createdAt,
        updatedAt: acc.updatedAt,
      })),
      total: accounts.length,
    };
  }

  @Get('status')
  @Public()
  @ApiOperation({ summary: '获取挖矿系统状态' })
  async getStatus() {
    const config = await this.prisma.miningConfig.findFirst();
    const accountCount = await this.prisma.miningAccount.count();

    // 用户有效算力
    const userContribution = await this.prisma.miningAccount.aggregate({
      _sum: { totalContribution: true },
    });

    // 系统账户算力
    const systemContribution = await this.prisma.systemMiningAccount.aggregate({
      _sum: { totalContribution: true },
    });

    // 待解锁算力
    const pendingContribution = await this.prisma.pendingContributionMining.aggregate({
      _sum: { amount: true },
      where: { isExpired: false },
    });

    return {
      initialized: !!config,
      isActive: config?.isActive || false,
      activatedAt: config?.activatedAt,
      currentEra: config?.currentEra || 0,
      remainingDistribution: config?.remainingDistribution?.toString() || '0',
      secondDistribution: config?.secondDistribution?.toString() || '0',
      accountCount,
      // 用户有效算力
      totalContribution: userContribution._sum.totalContribution?.toString() || '0',
      // 全网理论算力（从 contribution-service 同步）
      networkTotalContribution: config?.networkTotalContribution?.toString() || '0',
      totalTreeCount: config?.totalTreeCount || 0,
      contributionPerTree: config?.contributionPerTree?.toString() || '22617',
      networkLastSyncedAt: config?.networkLastSyncedAt,
      // 系统账户算力
      systemContribution: systemContribution._sum.totalContribution?.toString() || '0',
      // 待解锁算力
      pendingContribution: pendingContribution._sum.amount?.toString() || '0',
    };
  }

  @Post('activate')
  @Public()
  @ApiOperation({ summary: '激活挖矿系统' })
  async activate() {
    const config = await this.prisma.miningConfig.findFirst();

    if (!config) {
      throw new HttpException('挖矿系统未初始化，请先运行 seed 脚本', HttpStatus.BAD_REQUEST);
    }

    if (config.isActive) {
      return { success: true, message: '挖矿系统已经处于激活状态' };
    }

    await this.prisma.miningConfig.update({
      where: { id: config.id },
      data: {
        isActive: true,
        activatedAt: new Date(),
      },
    });

    return { success: true, message: '挖矿系统已激活' };
  }

  @Post('deactivate')
  @Public()
  @ApiOperation({ summary: '停用挖矿系统' })
  async deactivate() {
    const config = await this.prisma.miningConfig.findFirst();

    if (!config) {
      throw new HttpException('挖矿系统未初始化', HttpStatus.BAD_REQUEST);
    }

    if (!config.isActive) {
      return { success: true, message: '挖矿系统已经处于停用状态' };
    }

    await this.prisma.miningConfig.update({
      where: { id: config.id },
      data: {
        isActive: false,
      },
    });

    return { success: true, message: '挖矿系统已停用' };
  }

  @Post('sync-network')
  @Public()
  @ApiOperation({ summary: '从 contribution-service 同步全网数据（系统账户、全网进度）' })
  async syncNetwork() {
    const contributionServiceUrl = this.configService.get<string>(
      'CONTRIBUTION_SERVICE_URL',
      'http://localhost:3020',
    );

    return this.networkSyncService.syncFromContributionService(contributionServiceUrl);
  }

  @Get('system-accounts')
  @Public()
  @ApiOperation({ summary: '获取系统账户挖矿状态' })
  async getSystemAccounts() {
    const accounts = await this.prisma.systemMiningAccount.findMany({
      orderBy: { accountType: 'asc' },
    });

    return {
      accounts: accounts.map((acc) => ({
        accountType: acc.accountType,
        name: acc.name,
        totalMined: acc.totalMined.toString(),
        availableBalance: acc.availableBalance.toString(),
        totalContribution: acc.totalContribution.toString(),
        lastSyncedAt: acc.lastSyncedAt,
      })),
      total: accounts.length,
    };
  }
}