import { writeFile } from 'fs/promises'

import { getParsedScriptObjects } from './helpers/generate-script-object'
import { getParsedCallbacks } from './helpers/get-parsed-callbacks'
import { getParsedConstants } from './helpers/get-parsed-constants'
import { getParsedEnums } from './helpers/get-parsed-enums'
import { getParsedEventData } from './helpers/get-parsed-event-data'
import { getParsedStructs } from './helpers/get-parsed-structs'
import { getParsedSystems } from './helpers/get-parsed-systems'
import { Doc } from './shared/types/doc-types'

const data = require('../lua-docs/docs/docs.json') as Doc[]

const writeDeclaration = (declaration: string, name: string) => {
  try {
    const decoratedDeclaration = `
    /* eslint-disable @typescript-eslint/no-duplicate-enum-values */
    /* eslint-disable @typescript-eslint/ban-types */
    /** @noSelfInFile **/

    declare global {
      ${declaration}
    }

    export {}
  `

    return writeFile(`./src/types/Wow/${name}.d.ts`, decoratedDeclaration)
  } catch (error) {
    throw error as Error
  }
}

const main = async () => {
  try {
    const enums = getParsedEnums(data)
    const structs = getParsedStructs(data)
    const constants = getParsedConstants(data)
    const callbacks = getParsedCallbacks(data)
    const eventData = getParsedEventData(data)
    const systemData = getParsedSystems(data)
    const scriptObjects = getParsedScriptObjects(data)

    console.log('Parsed docs, writing declaration.')

    try {
      await Promise.all([
        writeDeclaration(structs.join('\n'), 'structs'),
        writeDeclaration(scriptObjects.join('\n'), 'scripts'),
        writeDeclaration(callbacks.join('\n'), 'callbacks'),
        writeDeclaration(enums.join('\n'), 'enums'),
        writeDeclaration(constants.join('\n'), 'constants'),
        writeDeclaration(eventData, 'events'),
        writeDeclaration(systemData.join('\n'), 'systems')
      ])
    } catch (error) {
      console.log(`Encountered error while writting declarations.`)
      console.error(error)
    }

    console.log('Done!')
  } catch (error) {
    console.log('SCRIPT ENDED IN ERROR')
    console.log(error)
  }
}

main()