import { api } from '../api'

export interface Deal {
  id: string
  dealNumber: string
  name: string
  contactId: string
  contact?: any
  structure: string // B2B, B2C, B2G, PARTNERSHIP
  pipelineId: string
  pipeline?: any
  stage: string
  estimatedValue: number
  actualValue?: number
  currency: string
  probability?: number
  expectedCloseDate?: string
  actualCloseDate?: string
  ownerId: string
  owner?: any
  wonReason?: string
  lostReason?: string
  fiscalYear: number
  status: string
  createdAt: string
  updatedAt: string
}

export interface CreateDealData {
  name: string
  contactId: string
  structure: string
  pipelineId: string
  stage: string
  estimatedValue: number
  probability?: number
  expectedCloseDate?: string
  ownerId?: string
  fiscalYear?: number
}

export interface UpdateDealData extends Partial<CreateDealData> {
  actualValue?: number
  actualCloseDate?: string
  wonReason?: string
  lostReason?: string
  status?: string
}

export interface DealFilters {
  search?: string
  structure?: string
  stage?: string
  status?: string
  ownerId?: string
  fiscalYear?: number
  page?: number
  pageSize?: number
}

export interface DealsResponse {
  deals: Deal[]
  total: number
  page: number
  pageSize: number
  totalPages: number
}

export const dealsAPI = {
  // Get all deals with filters and pagination
  getAll: async (filters: DealFilters = {}): Promise<DealsResponse> => {
    const params = new URLSearchParams()
    if (filters.search) params.append('search', filters.search)
    if (filters.structure) params.append('structure', filters.structure)
    if (filters.stage) params.append('stage', filters.stage)
    if (filters.status) params.append('status', filters.status)
    if (filters.ownerId) params.append('ownerId', filters.ownerId)
    if (filters.fiscalYear) params.append('fiscalYear', filters.fiscalYear.toString())
    if (filters.page) params.append('page', filters.page.toString())
    if (filters.pageSize) params.append('pageSize', filters.pageSize.toString())

    const response = await api.get(`/crm/deals?${params.toString()}`)
    const { data, pagination } = response.data
    return {
      deals: data || [],
      total: pagination?.total || 0,
      page: pagination?.page || 1,
      pageSize: pagination?.pageSize || 20,
      totalPages: pagination?.totalPages || 0,
    }
  },

  // Get single deal by ID
  getById: async (id: string): Promise<Deal> => {
    const response = await api.get(`/crm/deals/${id}`)
    return response.data.data
  },

  // Create new deal
  create: async (data: CreateDealData): Promise<Deal> => {
    const response = await api.post('/crm/deals', data)
    return response.data.data
  },

  // Update existing deal
  update: async (id: string, data: UpdateDealData): Promise<Deal> => {
    const response = await api.put(`/crm/deals/${id}`, data)
    return response.data.data
  },

  // Update deal stage
  updateStage: async (id: string, stage: string): Promise<Deal> => {
    const response = await api.patch(`/crm/deals/${id}/stage`, { stage })
    return response.data.data
  },

  // Mark deal as won
  win: async (id: string, actualValue: number, wonReason: string): Promise<Deal> => {
    const response = await api.post(`/crm/deals/${id}/win`, { actualValue, wonReason })
    return response.data.data
  },

  // Mark deal as lost
  lose: async (id: string, lostReason: string): Promise<Deal> => {
    const response = await api.post(`/crm/deals/${id}/lose`, { lostReason })
    return response.data.data
  },

  // Get deal history
  getHistory: async (id: string): Promise<any[]> => {
    const response = await api.get(`/crm/deals/${id}/history`)
    return response.data.data
  }
}