import truncate from "ansi-truncate"
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import readline from "readline"
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export class QuartzLogger {
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verbose: boolean
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private spinnerInterval: NodeJS.Timeout | undefined
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private spinnerText: string = ""
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private updateSuffix: string = ""
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private spinnerIndex: number = 0
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private readonly spinnerChars = ["⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"]
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constructor(verbose: boolean) {
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const isInteractiveTerminal =
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process.stdout.isTTY && process.env.TERM !== "dumb" && !process.env.CI
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this.verbose = verbose || !isInteractiveTerminal
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}
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start(text: string) {
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this.spinnerText = text
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if (this.verbose) {
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console.log(text)
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} else {
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this.spinnerIndex = 0
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this.spinnerInterval = setInterval(() => {
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readline.clearLine(process.stdout, 0)
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readline.cursorTo(process.stdout, 0)
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const columns = process.stdout.columns || 80
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let output = `${this.spinnerChars[this.spinnerIndex]} ${this.spinnerText}`
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if (this.updateSuffix) {
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output += `: ${this.updateSuffix}`
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}
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const truncated = truncate(output, columns)
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process.stdout.write(truncated)
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this.spinnerIndex = (this.spinnerIndex + 1) % this.spinnerChars.length
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}, 50)
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}
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}
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updateText(text: string) {
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this.updateSuffix = text
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}
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end(text?: string) {
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if (!this.verbose && this.spinnerInterval) {
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clearInterval(this.spinnerInterval)
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this.spinnerInterval = undefined
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readline.clearLine(process.stdout, 0)
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readline.cursorTo(process.stdout, 0)
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}
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if (text) {
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console.log(text)
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}
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}
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}
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