// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
import * as util from 'util'
import { Disposable, LogOutputChannel } from 'vscode'

type Arguments = unknown[]
class OutputChannelLogger {
  constructor(private readonly channel: LogOutputChannel) {}

  public traceLog(...data: Arguments): void {
    this.channel.appendLine(util.format(...data))
  }

  public traceError(...data: Arguments): void {
    this.channel.error(util.format(...data))
  }

  public traceWarn(...data: Arguments): void {
    this.channel.warn(util.format(...data))
  }

  public traceInfo(...data: Arguments): void {
    this.channel.info(util.format(...data))
  }

  public traceVerbose(...data: Arguments): void {
    this.channel.debug(util.format(...data))
  }
}

let channel: OutputChannelLogger | undefined
export function registerLogger(logChannel: LogOutputChannel): Disposable {
  channel = new OutputChannelLogger(logChannel)
  return {
    dispose: () => {
      channel = undefined
    },
  }
}

export function traceLog(...args: Arguments): void {
  channel?.traceLog(...args)
}

export function traceError(...args: Arguments): void {
  channel?.traceError(...args)
}

export function traceWarn(...args: Arguments): void {
  channel?.traceWarn(...args)
}

export function traceInfo(...args: Arguments): void {
  channel?.traceInfo(...args)
}

export function traceVerbose(...args: Arguments): void {
  channel?.traceVerbose(...args)
}
