/* eslint-disable @typescript-eslint/no-explicit-any */
import fs from 'node:fs/promises'
import url from 'node:url'
import path from 'node:path'

import { downloadFromGitHub } from '../utils/index.js'
import { buildPreface } from '../utils/helpers.js'

import reporters3rdParty from './3rd-party/reporters.json' with { type: 'json' }
import services3rdParty from './3rd-party/services.json' with { type: 'json' }
import api3rdParty from './3rd-party/api.json' with { type: 'json' }

interface Plugin {
    packageName: string
    title: string
    githubUrl: string
    npmUrl: string
    branch?: string
    location?: string
    locations: string[]
    suppressBuildInfo?: boolean
}

const docsFixes: Record<string, ((docs: string) => string)> = {
    '@sap_oss/wdio-qmate-service' : (docs: string) => docs
        .replace('Benjamin Warth <benjamin.warth@sap.com>', '[Benjamin Warth](mailto:benjamin.warth@sap.com)')
        .replace('Georgios Treska <georgios.treska@sap.com>', '[Georgios Treska](mailto:georgios.treska@sap.com)')
        .replace('Marvin Grüßinger <marvin.gruessinger@sap.com>', '[Marvin Grüßinger](mailto:marvin.gruessinger@sap.com)'),
    'wdio-ui5-service': (docs: string) => docs
        .replace('<https://ui5-community.github.io/wdi5/>', '[https://ui5-community.github.io/wdi5/](https://ui5-community.github.io/wdi5/)')
        .replace('Roadmap: <https://github.com/orgs/ui5-community/projects/2/views/1>', '[Roadmap](https://github.com/orgs/ui5-community/projects/2/views/1)'),
    'wdio-intercept-service': (docs: string) => docs
        .replace('browser.excludeUrls(urlRegexes: (string | RegExp)[])', '`browser.excludeUrls(urlRegexes: (string | RegExp)[])`')
        .replace('browser.assertRequests({ orderBy?: \'START\' | \'END\' }?: = {})', '`browser.assertRequests({ orderBy?: \'START\' | \'END\' }?: = {})`')
        .replace('browser.assertExpectedRequestsOnly({ inOrder?: boolean, orderBy?: \'START\' | \'END\' }?: = {})', "`browser.assertExpectedRequestsOnly({ inOrder?: boolean, orderBy?: 'START' | 'END' }?: = {})`")
        .replace('browser.getRequest(index: number, { includePending?: boolean, orderBy?: \'START\' | \'END\' }?: = {})', "`browser.getRequest(index: number, { includePending?: boolean, orderBy?: 'START' | 'END' }?: = {})`")
        .replace('browser.getRequests({ includePending?: boolean, orderBy?: \'START\' | \'END\' }?: = {})', "`browser.getRequests({ includePending?: boolean, orderBy?: 'START' | 'END' }?: = {})`"),
    'wdio-reportportal-reporter': (docs: string) => docs
        .replace('<http://reportportal.io/>', '[http://reportportal.io/](http://reportportal.io/)')
}

const __dirname = path.dirname(url.fileURLToPath(import.meta.url))
const plugins = [{
    category: 'docs',
    namePlural: 'Reporter',
    nameSingular: 'Reporter',
    packages3rdParty: reporters3rdParty
}, {
    category: 'docs',
    namePlural: 'Services',
    nameSingular: 'Service',
    packages3rdParty: services3rdParty
}, {
    category: 'api',
    namePlural: 'Testrunner',
    nameSingular: '',
    packages3rdParty: api3rdParty
}]

const githubReadme = 'README.md'

const readmeHeaderLines = 9
const readmeHeaders = ['===', '# ']
const readmeBadges = ['https://badge', 'https://travis-ci.org/']

const PROJECT_ROOT_DIR = path.join(__dirname, '..', '..')
const DOCS_ROOT_DIR = path.join(PROJECT_ROOT_DIR, 'website', 'docs')

/**
 * Generate docs for 3rd party reporters and services
 * @param {object} sidebars website/sidebars
 */
export async function generate3rdPartyDocs (sidebars: any) {
    for (const { category, namePlural, nameSingular, packages3rdParty } of plugins) {
        const categoryDir = path.join(DOCS_ROOT_DIR, category === 'api' ? 'api' : '')
        await fs.mkdir(categoryDir, { recursive: true })
        const sidebar = sidebars[category]

        const items: string[] = []
        for (const { packageName, title, githubUrl, npmUrl, suppressBuildInfo, locations, location = githubReadme, branch = 'main' } of packages3rdParty as Plugin[]) {
            const readme = locations
                ? await Promise.all(locations.map((l) => downloadFromGitHub(githubUrl, branch, l)))
                    .then((readmes) => readmes.join('\n'))
                : await downloadFromGitHub(githubUrl, branch, location)
            const id = `${packageName}`.replace(/@/g, '').replace(/\//g, '-')

            const doc = normalizeDoc(
                readme,
                githubUrl,
                branch,
                buildPreface(id, title, nameSingular, `${githubUrl}/edit/${branch}/${location}`),
                suppressBuildInfo ? [] : buildInfo(packageName, githubUrl, npmUrl),
                packageName
            )
            await fs.writeFile(path.join(categoryDir, `_${id}.md`), doc, { encoding: 'utf-8' })

            if (namePlural === 'Testrunner') {
                return
            }

            console.log(`Generated docs for ${packageName}`)
            items.push(category === 'api' ? `${category}/${id}` : id)
        }

        const section = sidebar.find((s: any) => s.label === namePlural)
        section.items.push(...items)
    }
}

/**
 * Removes header from README.md
 * @param {string}  readme      readme content
 * @param {string}  githubUrl     repo url
 * @param {string}  branch     repo branch
 * @param {string}  preface     docusaurus header
 * @param {string}  repoInfo    repoInfo
 * @return {string}             readme content without header
 */
function normalizeDoc(readme: string, githubUrl: string, branch: string, preface: string[], repoInfo: string[], packageName: string) {
    /**
     * remove badges
     */
    let readmeArr = readme.split('\n').filter(row => !readmeBadges.some(b => row.includes(b)))

    /**
     * get index of header to remove further
     */
    let sliceIdx = 0
    for (let i = 0; i < readmeHeaderLines && sliceIdx === 0; i++) {
        if (typeof readmeArr[i] === 'string' && readmeHeaders.some(x => readmeArr[i].startsWith(x))) {
            sliceIdx = i + 1
        }
    }
    readmeArr = readmeArr.slice(sliceIdx)

    /**
     * prepend additional # to header rows
     * and add path to links
     */
    readmeArr.forEach((row, idx) => {
        /**
         * prepend # to header rows
         */
        if (row.match(/^(# )\1* /)) {
            readmeArr[idx] = `#${row}`
        }

        /**
         * transform partial to full links
         * match links like [foo](bar). `stringInParentheses` would be `bar`
         * do not match [foo](http://bar), [foo](#bar)
         */
        const mdLinks = row.match(/\[([^\]]+)\]\(([^)"]+)(?: "([^"]+)")?\)/g) || []
        for (const mdLink of mdLinks) {
            const urlMatcher = mdLink.match(/\[([^[]+)\]\((.*)\)/)

            if (!urlMatcher) {
                continue
            }

            const stringInParentheses = urlMatcher[2]
            const url = ( stringInParentheses.startsWith('http') || stringInParentheses.startsWith('#') )
                ? stringInParentheses
                : `${githubUrl}/blob/${branch}/${stringInParentheses}`
            readmeArr[idx] = readmeArr[idx].replace(`](${stringInParentheses})`, `](${url})`)
        }
    })

    /**
     * apply custom fixes
     */
    if (docsFixes[packageName]) {
        console.log(`Applying custom fixes for ${packageName}`)
        readmeArr = [docsFixes[packageName](readmeArr.join('\n'))]
    }

    return [...preface, ...repoInfo, ...readmeArr]
        .join('\n')
        .replace(/<br>/g, '<br />')
}

/**
 * 3rd party package info
 * @param {string} packageName package name
 * @param {string} githubUrl GitHub url
 * @param {string} npmUrl npm url
 */
function buildInfo(packageName: string, githubUrl: string, npmUrl: string) {
    return [
        `> ${packageName} is a 3rd party package, for more information please see [GitHub](${githubUrl}) | [npm](${npmUrl})`
    ]
}