import type { AstroIntegration } from 'astro'
import { exec as execSync } from 'node:child_process'
import { promisify } from 'node:util'

const exec = promisify(execSync)

/**
 * launch the integration
 * @returns the routng integration
 */
const integration: () => AstroIntegration = () => ({
	name: 'version',
	hooks: {
		'astro:config:setup': async (setup) => {
			try {
				const commit = (await exec('git rev-parse HEAD')).stdout
				const branch = (await exec('git rev-parse --abbrev-ref HEAD')).stdout
				const tag = (await exec('git tag -l --points-at HEAD')).stdout
				const envs: Record<string, string> = {}
				if (commit) {
					envs['import.meta.env.GIT_COMMIT'] = JSON.stringify(commit.slice(0, 8).trim())
				}
				if (branch) {
					envs['import.meta.env.GIT_BRANCH'] = JSON.stringify(branch.trim())
				}
				if (tag) {
					envs['import.meta.env.GIT_TAG'] = JSON.stringify(tag.trim())
				}

				setup.updateConfig({
					vite: {
						define: {
							...envs
						}
					}
				})
			} catch (error: any) {
				setup.logger.warn(error.toString())
				setup.logger.warn('could not setup GIT envs')
			}
		}
	}
})

export default integration