const fs = require('fs')
const swaggerAutogen = require('swagger-autogen')()

const doc = {
    info: {
        title: 'IPost API',
        description: 'the official IPost.rocks API documentation',
    },
    host: 'ipost.rocks',
    schemes: ['https'],
    securityDefinitions: {
        appTokenAuthHeader: {
            type: 'apiKey',
            in: 'header', // can be 'header', 'query' or 'cookie'
            name: 'ipost-auth-token', // name of the header, query parameter or cookie
            description:
                'authenticate using the authentication object in the header',
        },
    },
}

const outputFile = './swagger-api.json'
const tempFile = './swagger-output.json'
const endpointsFiles = ['./server.js']

function pushdirectory(currentpath) {
    fs.readdirSync(currentpath, {
        withFileTypes: true,
    }).forEach((dirent) => {
        if (dirent.isFile()) {
            endpointsFiles.push(currentpath + dirent.name)
        } else {
            pushdirectory(currentpath + dirent.name + '/')
        }
    })
}

pushdirectory('./routes/')

swaggerAutogen(tempFile, endpointsFiles, doc)

/*
  Replace some error codes with own error codes, as described in error_codes.txt
*/
const to_replace = {
    401: 'login error (invalid cookie)',
    402: 'login error (bad cookie)',
    403: 'login error (no cookie)',

    410: 'argument/data error',
    411: 'argument/data error',
    412: 'argument/data error',
    413: 'argument/data error',
    414: 'argument/data error',
    415: 'argument/data error',
    416: 'argument/data error',
    417: 'argument/data error',
    418: 'argument/data error',
    419: 'argument/data error',
    420: 'invalid authetication object',
}

let file = JSON.parse(fs.readFileSync(tempFile, 'utf8'))

for (let path in file.paths) {
    for (let method in file.paths[path]) {
        for (let response in file.paths[path][method].responses) {
            if (to_replace[response]) {
                file.paths[path][method].responses[response].description =
                    to_replace[response]
            }
        }
    }
}

file = JSON.stringify(file)
console.log(file)
fs.writeFileSync(outputFile, file)
fs.rmSync(tempFile)