priestine/versions

import type { IAppCtx } from '../../types/app-ctx'
import type { Unary } from '../../types/common-types'
import type { IEither } from '../../utils/either'
import type { LogFatalError } from '../../utils/logger'

interface IDeps {
    execEither: Unary<string, IEither<string, Error>>
    logFatalError: LogFatalError
}

type Ctx = Pick<IAppCtx, 'latestVersion'>

export const getLatestVersionCommit = ({ execEither, logFatalError }: IDeps) => ({
    latestVersion,
}: Ctx) => ({
    latestVersionCommit: execEither(getCommitCommand(latestVersion)).fold(
        logFatalError('Could not get latest version commit due to error.'),
        (latestVersionCommit) => latestVersionCommit,
    ),
})

// ------------------------------------------------------------------------------------------------

const getCommitCommand = (latestVersion: string) =>
    latestVersion === '0.0.0'
        ? 'git rev-list --max-parents=0 HEAD'
        : `git show-ref ${latestVersion} -s`