/**
 * 账务 API 客户端
 * 提供会计科目、分录查询等功能
 */
import apiClient from './client'
import type {
  AccountingSubject,
  LedgerEntry,
  LedgerEntryQuery,
} from '@/types/ledger'
import type { PageResponse } from '@/types/api'

export class LedgerAPI {
  /**
   * 获取会计科目列表
   * @returns 会计科目列表
   */
  static async getSubjects(): Promise<AccountingSubject[]> {
    return apiClient.get('/ledger/subjects')
  }

  /**
   * 获取会计科目详情
   * @param code 科目代码
   * @returns 会计科目
   */
  static async getSubject(code: string): Promise<AccountingSubject> {
    return apiClient.get(`/ledger/subjects/${code}`)
  }

  /**
   * 获取分录详情
   * @param id 分录ID
   * @returns 分录详情（包含明细行）
   */
  static async getEntry(id: number): Promise<LedgerEntry> {
    return apiClient.get(`/ledger/entries/${id}`)
  }

  /**
   * 获取账户分录列表
   * @param accountId 账户ID
   * @param accountType 账户类型 (physical/virtual)
   * @param query 查询参数
   * @returns 分页的分录列表
   */
  static async getAccountEntries(
    accountId: number,
    accountType: 'physical' | 'virtual',
    query?: LedgerEntryQuery
  ): Promise<PageResponse<LedgerEntry>> {
    return apiClient.get(`/ledger/accounts/${accountId}/entries`, {
      params: { account_type: accountType, ...query }
    })
  }

  /**
   * 根据交易号获取分录
   * @param txnNo 交易号
   * @returns 分录详情
   */
  static async getEntryByTxnNo(txnNo: string): Promise<LedgerEntry> {
    return apiClient.get(`/ledger/entries/by-txn/${txnNo}`)
  }

  /**
   * 获取账户余额变动历史
   * @param accountId 账户ID
   * @param accountType 账户类型
   * @param query 查询参数
   * @returns 余额变动记录
   */
  static async getBalanceHistory(
    accountId: number,
    accountType: 'physical' | 'virtual',
    query?: BalanceHistoryQuery
  ): Promise<PageResponse<BalanceChange>> {
    return apiClient.get(`/ledger/accounts/${accountId}/balance-history`, {
      params: { account_type: accountType, ...query }
    })
  }

  /**
   * 获取科目汇总报表
   * @param query 查询参数
   * @returns 科目汇总数据
   */
  static async getSubjectSummary(query: SubjectSummaryQuery): Promise<SubjectSummary[]> {
    return apiClient.get('/ledger/reports/subject-summary', { params: query })
  }
}

/**
 * 余额变动查询参数
 */
export interface BalanceHistoryQuery {
  start_date?: string
  end_date?: string
  page?: number
  page_size?: number
}

/**
 * 余额变动记录
 */
export interface BalanceChange {
  id: number
  account_id: number
  account_type: string
  change_type: string
  amount: string
  balance_before: string
  balance_after: string
  txn_no?: string
  description?: string
  created_at: string
}

/**
 * 科目汇总查询参数
 */
export interface SubjectSummaryQuery {
  start_date: string
  end_date: string
  subject_code?: string
}

/**
 * 科目汇总数据
 */
export interface SubjectSummary {
  subject_code: string
  subject_name: string
  debit_total: string
  credit_total: string
  balance: string
  transaction_count: number
}

export default LedgerAPI