/**
 * Precompile the abilities config from Yaml to TS
 */

import * as fs from 'fs'
import * as path from 'path'
import * as yaml from 'js-yaml'

interface AbilityCondition {
  function: string
  parameters?: unknown[]
  expectedResult?: boolean
}

interface AbilityConfig {
  action: string
  conditions: AbilityCondition[]
}

interface CompiledAbilities {
  [key: string]: AbilityConfig
}

function loadYamlFile(filePath: string): unknown {
  try {
    const fileContents = fs.readFileSync(filePath, 'utf8')
    return yaml.load(fileContents)
  } catch (error) {
    console.error(`Error loading YAML file ${filePath}:`, error)
    return {}
  }
}

function compileAbilitiesConfig(): void {
  const configDir = path.join(process.cwd(), 'config/abilities/pages')
  const outputPath = path.join(
    process.cwd(),
    'config/abilities/config-precompiled.ts',
  )

  console.log('Starting abilities config compilation...')

  // Read all YAML files from the pages directory
  const yamlFiles = fs
    .readdirSync(configDir)
    .filter((file) => file.endsWith('.yaml'))
  const compiledAbilities: CompiledAbilities = {}

  yamlFiles.forEach((file) => {
    const filePath = path.join(configDir, file)
    console.log(`Processing ${file}...`)

    const config = loadYamlFile(filePath)

    // Merge all abilities from this file into the compiled config
    Object.assign(compiledAbilities, config)
  })

  // Generate TypeScript content
  const header = `/**
 * AUTO-GENERATED FILE - DO NOT MODIFY MANUALLY
 *
 * This file is automatically generated from YAML configuration files
 * in config/abilities/pages/ directory.
 *
 * To make changes, edit the source YAML files and run the compilation script :
 *     yarn prepare
 *
 * Generated on: ${new Date().toISOString()}
 */

`

  const tsContent = `${header}export default ${JSON.stringify(compiledAbilities, null, 2)} as const
`

  // Write the compiled TypeScript file
  fs.writeFileSync(outputPath, tsContent, 'utf8')

  console.log(`✓ Abilities config compiled successfully to ${outputPath}`)
  console.log(`✓ Processed ${yamlFiles.length} YAML files`)
  console.log(
    `✓ Generated ${Object.keys(compiledAbilities).length} ability definitions`,
  )
}

// Run the compilation
compileAbilitiesConfig()