// TODO: Add entity batches validation
import Ajv from 'ajv'
import { FetchedInput, getInputs, InputType, INPUT_TYPES } from '../src/helpers/inputs'
import path from 'path'
import fs from 'fs'
import $RefParser from '@apidevtools/json-schema-ref-parser'

const SCHEMAS_LOCATION = path.join(__dirname, '../schemas')

const ajv = new Ajv({ allErrors: true })

const validateJsonSchema = (jsonSchemaShortPath: string, jsonSchema: Record<string, unknown>) => {
  if (!ajv.validateSchema(jsonSchema)) {
    console.log(`\nERROR! ${jsonSchemaShortPath} - schema validation failed!`)
    console.log(ajv.errorsText(undefined, { separator: '\n' }))
    console.log('\n')
    process.exitCode = 100

    return false
  }

  return true
}

const validateInputAgainstSchema = (input: FetchedInput, jsonSchema: Record<string, unknown>) => {
  if (!ajv.validate(jsonSchema, input.data)) {
    console.log(`\nERROR! ${input.fileName} - validation failed!`)
    console.log(ajv.errorsText(undefined, { separator: '\n' }))
    console.log('\n')
    process.exitCode = 100

    return false
  }

  return true
}

const getJsonSchemaForInput = (inputType: InputType, input: FetchedInput) => {
  let schemaLocation = ''
  if (inputType === 'classes') {
    schemaLocation = path.join(SCHEMAS_LOCATION, 'extrinsics', 'CreateClass.schema.json')
  }
  if (inputType === 'schemas') {
    schemaLocation = path.join(SCHEMAS_LOCATION, 'extrinsics', 'AddClassSchema.schema.json')
  }
  if (inputType === 'entityBatches') {
    const jsonSchemaFilename = input.fileName.replace('.json', '.schema.json')
    schemaLocation = path.join(SCHEMAS_LOCATION, 'entityBatches', jsonSchemaFilename)
  }

  return {
    jsonSchemaPath: schemaLocation,
    jsonSchema: JSON.parse(fs.readFileSync(schemaLocation).toString()),
  }
}

async function main() {
  const alreadyValidatedJsonSchemas = new Map<string, boolean>()
  for (const inputType of INPUT_TYPES) {
    console.log(`Validating inputs/${inputType} and related json-schemas...\n`)
    for (const input of getInputs(inputType)) {
      let { jsonSchemaPath, jsonSchema } = getJsonSchemaForInput(inputType, input)
      jsonSchema = await $RefParser.dereference(jsonSchemaPath, jsonSchema)
      const jsonSchemaShortPath = path.relative(path.join(SCHEMAS_LOCATION, '..'), jsonSchemaPath)
      // Validate the schema itself
      let isJsonSchemaValid = alreadyValidatedJsonSchemas.get(jsonSchemaShortPath)
      if (isJsonSchemaValid === undefined) {
        console.log(`Validating ${jsonSchemaShortPath}...`)
        isJsonSchemaValid = validateJsonSchema(jsonSchemaShortPath, jsonSchema)
        alreadyValidatedJsonSchemas.set(jsonSchemaShortPath, isJsonSchemaValid)
      }
      if (!isJsonSchemaValid) {
        return
      }
      console.log(`Validating inputs/${inputType}/${input.fileName}...`)
      validateInputAgainstSchema(input, jsonSchema)
    }

    console.log('\n\n')
  }
}

main()
  .then(() => process.exit())
  .catch((e) => console.error(e))