import axios, {
	AxiosInstance,
	AxiosError,
	AxiosRequestConfig,
	AxiosResponse,
	InternalAxiosRequestConfig
} from "axios";
import { showFailToast } from 'vant'
import type { IResultData } from '@/types/api/index'
import { getStorage } from './authStorage'

enum RequestEnums {
	TIME_OUT = 20000,
	SUCCESS = 200,
	CODE = 0
}

const baseConfig = {
	baseURL: import.meta.env.VITE_BASE_URL,
	timeout: RequestEnums.TIME_OUT,
	withCredentials: true
}

interface IRequestClass {
	service: AxiosInstance
}

class RequestHttp implements IRequestClass {
	service: AxiosInstance;

	constructor(config: AxiosRequestConfig) {
		this.service = axios.create(config)

		this.service.interceptors.request.use((config: InternalAxiosRequestConfig) => {
			if (!!config.headers!.isToken && getStorage()) {
				config.headers!['X-token'] = getStorage()
			}
			if (!config.headers['Content-Type']) {
				config.headers['Content-Type'] = 'application/x-www-form-urlencoded'
			}

			return Promise.resolve(config)
		}, (error: AxiosError) => {
			showFailToast(error)
			// 请求报错
			Promise.reject(error)
		})

		this.service.interceptors.response.use((response: AxiosResponse) => {
			const { msg, code, error } = response.data
			console.log(response.data)
			if (response.status === 302) {
				window.localStorage.clear()
				window.location.href = `/login?redirect=${window.location.pathname}`
				return Promise.reject(msg)
			}
			if (response.status === 404) {
				showFailToast(error)
				return Promise.reject(msg)
			}
			if (code !== RequestEnums.CODE) {
				showFailToast(msg)
				return Promise.reject(msg)
			}
			return Promise.resolve(response.data)
		}, (error: AxiosError) => {
			showFailToast(error)
			return Promise.reject(error)
		})
	}
	get<T>(url: string, params?: Object): Promise<IResultData<T>> {
		return this.service.get(url, { params })
	}
	post<T>(url: string, data: object): Promise<IResultData<T>> {
		return this.service.post(url, data);
	}
	put<T>(url: string, data?: object): Promise<IResultData<T>> {
		return this.service.put(url, data);
	}
	delete<T>(url: string, data?: object): Promise<IResultData<T>> {
		return this.service.delete(url, data);
	}
}

export default new RequestHttp(baseConfig)