import { getConfigApp } from '@/utils/config'
import { baseURL as fallbackBaseURL } from '@/themeConfig'
import type {AxiosRequestConfig, AxiosResponse} from 'axios'
import axios from 'axios'
import {getToken, removeToken} from "@/utils";
import { findStoredAuthToken } from '@/utils/authToken';
import router from "@/router";
import {get} from 'lodash'
import {message} from "ant-design-vue";

interface Meta {
    errorMessage?: 'message' | 'notification' | 'toast' | 'none'
}

interface MyAxiosRequestConfig<D = any> extends AxiosRequestConfig<D> {
    meta?: Meta
}

const headers = {
    'Content-Type': 'application/json',
    Accept: 'application/json',
}

const _axios = axios.create({
    baseURL: fallbackBaseURL,
    headers,
})

let sessionVerifyTimer: ReturnType<typeof setTimeout> | null = null
let sessionVerifyInFlight = false

function requestPath(config: { url?: string; baseURL?: string } | undefined): string {
    const raw = String(config?.url ?? '')
    if (raw.startsWith('http')) {
        try {
            return new URL(raw).pathname
        } catch {
            return raw
        }
    }
    return raw
}

async function logoutToLogin() {
    removeToken()
    if (router.currentRoute.value.name !== 'login') {
        await router.push({ name: 'login' })
    }
}

function scheduleSessionVerify() {
    if (sessionVerifyTimer) {
        return
    }

    sessionVerifyTimer = setTimeout(async () => {
        sessionVerifyTimer = null
        if (sessionVerifyInFlight) {
            return
        }

        const token = findStoredAuthToken()
        if (!token) {
            return
        }

        sessionVerifyInFlight = true
        try {
            await _axios.get('/customer/me', {
                headers: { Authorization: `Bearer ${token}` },
                meta: { errorMessage: 'none' },
            })
        } catch {
            await logoutToLogin()
        } finally {
            sessionVerifyInFlight = false
        }
    }, 2000)
}

_axios.interceptors.request.use(
    (config) => {
        const runtimeBaseURL = getConfigApp('node_server')
        if (runtimeBaseURL) {
            config.baseURL = runtimeBaseURL
        }
        if (config.headers) {
            const token = getToken()
            if (token) {
                //@ts-ignore
                config.headers['Authorization'] = 'Bearer ' + token
            }
        }
        return config
    },
    (error) => {
        //console.log('this is error on interceptors.request', error)
        Promise.reject(error)
    },
)
_axios.interceptors.response.use(
    (response) => {
        //console.log('this is response')
        // Any status code that lie within the range of 2xx cause this function to trigger
        // Do something with response data
        //console.log('this is fulfilled on interceptors.response', response.data)
        return response.data
    },
    async function (error) {
        const response = error.response
        const config = error.config as MyAxiosRequestConfig | undefined

        if (response?.status === 401) {
            const hadAuth = Boolean(config?.headers?.Authorization)
            if (hadAuth) {
                const path = requestPath(config)
                if (path.includes('/customer/me')) {
                    await logoutToLogin()
                } else {
                    scheduleSessionVerify()
                }
            }
            return Promise.reject(error)
        }

        if (!shouldShowApiError(config)) {
            return Promise.reject(error)
        }

        const apiMessage = extractApiErrorMessage(response?.data)

        if (response?.status === 403) {
            showApiError(apiMessage || 'شما دسترسی لازم برای انجام این عملیات را ندارید', config)
            return Promise.reject(error)
        }

        if (response?.status === 422) {
            if (apiMessage) {
                showApiError(apiMessage, config)
            }
            return Promise.reject(error)
        }

        if (response) {
            showApiError(apiMessage || DEFAULT_LOAD_ERROR, config)
            return Promise.reject(error)
        }

        showApiError(DEFAULT_LOAD_ERROR, config)
        return Promise.reject(error)
    })

const DEFAULT_LOAD_ERROR = 'خطا در بارگذاری اطلاعات'

function extractApiErrorMessage(data: unknown): string {
    if (!data || typeof data !== 'object') {
        return ''
    }

    const record = data as Record<string, unknown>
    const rawMessage = record.message

    if (typeof rawMessage === 'string' && rawMessage.trim()) {
        return rawMessage.trim()
    }

    if (typeof rawMessage === 'number') {
        return String(rawMessage)
    }

    const rawError = record.error
    if (typeof rawError === 'string' && rawError.trim()) {
        return rawError.trim()
    }

    const errors = record.errors
    if (errors && typeof errors === 'object') {
        for (const value of Object.values(errors as Record<string, unknown>)) {
            if (Array.isArray(value) && typeof value[0] === 'string' && value[0].trim()) {
                return value[0].trim()
            }
            if (typeof value === 'string' && value.trim()) {
                return value.trim()
            }
        }
    }

    return ''
}

function shouldShowApiError(config: MyAxiosRequestConfig | undefined): boolean {
    return get(config, 'meta.errorMessage', 'message') !== 'none'
}

function showApiError(msg: string, config: MyAxiosRequestConfig | undefined) {
    if (!shouldShowApiError(config)) {
        return
    }

    message.error(msg)
}

const myAxios = {
    //AxiosResponse<T>
    post<T = any, R = T, D = any>(
        url: string,
        data?: D,
        config?: MyAxiosRequestConfig<D>,
    ): Promise<R> {
        return _axios.post(url, data, config)
    },
    request<T = any, R = AxiosResponse<T>, D = any>(config: MyAxiosRequestConfig<D>): Promise<R> {
        return _axios.request(config)
    },
    //AxiosResponse<T>
    get<T = any, R = T, D = any>(url: string, config?: MyAxiosRequestConfig<D>): Promise<R> {
        return _axios.get(url, config)
    },
    //AxiosResponse<T>
    delete<T = any, R = T, D = any>(url: string, config?: MyAxiosRequestConfig<D>): Promise<R> {
        return _axios.delete(url, config)
    },
    //AxiosResponse<T>
    head<T = any, R = T, D = any>(url: string, config?: MyAxiosRequestConfig<D>): Promise<R> {
        return _axios.head(url, config)
    },
    //AxiosResponse<T>
    options<T = any, R = T, D = any>(url: string, config?: MyAxiosRequestConfig<D>): Promise<R> {
        return _axios.options(url, config)
    },
    //AxiosResponse<T>
    put<T = any, R = T, D = any>(
        url: string,
        data?: D,
        config?: MyAxiosRequestConfig<D>,
    ): Promise<R> {
        return _axios.put(url, data, config)
    },
    //AxiosResponse<T>
    patch<T = any, R = T, D = any>(
        url: string,
        data?: D,
        config?: MyAxiosRequestConfig<D>,
    ): Promise<R> {
        return _axios.patch(url, data, config)
    },
    //AxiosResponse<T>
    postForm<T = any, R = T, D = any>(
        url: string,
        data?: D,
        config?: MyAxiosRequestConfig<D>,
    ): Promise<R> {
        return _axios.postForm(url, data, config)
    },
    //AxiosResponse<T>
    putForm<T = any, R = T, D = any>(
        url: string,
        data?: D,
        config?: MyAxiosRequestConfig<D>,
    ): Promise<R> {
        return _axios.putForm(url, data, config)
    },
    //AxiosResponse<T>
    patchForm<T = any, R = T, D = any>(
        url: string,
        data?: D,
        config?: MyAxiosRequestConfig<D>,
    ): Promise<R> {
        return _axios.patchForm(url, data, config)
    },
}

export default myAxios
export {_axios}