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node_modules/gauge/lib/theme-set.js

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+'use strict'
+
+module.exports = function () {
+  return ThemeSetProto.newThemeSet()
+}
+
+var ThemeSetProto = {}
+
+ThemeSetProto.baseTheme = require('./base-theme.js')
+
+ThemeSetProto.newTheme = function (parent, theme) {
+  if (!theme) {
+    theme = parent
+    parent = this.baseTheme
+  }
+  return Object.assign({}, parent, theme)
+}
+
+ThemeSetProto.getThemeNames = function () {
+  return Object.keys(this.themes)
+}
+
+ThemeSetProto.addTheme = function (name, parent, theme) {
+  this.themes[name] = this.newTheme(parent, theme)
+}
+
+ThemeSetProto.addToAllThemes = function (theme) {
+  var themes = this.themes
+  Object.keys(themes).forEach(function (name) {
+    Object.assign(themes[name], theme)
+  })
+  Object.assign(this.baseTheme, theme)
+}
+
+ThemeSetProto.getTheme = function (name) {
+  if (!this.themes[name]) {
+    throw this.newMissingThemeError(name)
+  }
+  return this.themes[name]
+}
+
+ThemeSetProto.setDefault = function (opts, name) {
+  if (name == null) {
+    name = opts
+    opts = {}
+  }
+  var platform = opts.platform == null ? 'fallback' : opts.platform
+  var hasUnicode = !!opts.hasUnicode
+  var hasColor = !!opts.hasColor
+  if (!this.defaults[platform]) {
+    this.defaults[platform] = { true: {}, false: {} }
+  }
+  this.defaults[platform][hasUnicode][hasColor] = name
+}
+
+ThemeSetProto.getDefault = function (opts) {
+  if (!opts) {
+    opts = {}
+  }
+  var platformName = opts.platform || process.platform
+  var platform = this.defaults[platformName] || this.defaults.fallback
+  var hasUnicode = !!opts.hasUnicode
+  var hasColor = !!opts.hasColor
+  if (!platform) {
+    throw this.newMissingDefaultThemeError(platformName, hasUnicode, hasColor)
+  }
+  if (!platform[hasUnicode][hasColor]) {
+    if (hasUnicode && hasColor && platform[!hasUnicode][hasColor]) {
+      hasUnicode = false
+    } else if (hasUnicode && hasColor && platform[hasUnicode][!hasColor]) {
+      hasColor = false
+    } else if (hasUnicode && hasColor && platform[!hasUnicode][!hasColor]) {
+      hasUnicode = false
+      hasColor = false
+    } else if (hasUnicode && !hasColor && platform[!hasUnicode][hasColor]) {
+      hasUnicode = false
+    } else if (!hasUnicode && hasColor && platform[hasUnicode][!hasColor]) {
+      hasColor = false
+    } else if (platform === this.defaults.fallback) {
+      throw this.newMissingDefaultThemeError(platformName, hasUnicode, hasColor)
+    }
+  }
+  if (platform[hasUnicode][hasColor]) {
+    return this.getTheme(platform[hasUnicode][hasColor])
+  } else {
+    return this.getDefault(Object.assign({}, opts, { platform: 'fallback' }))
+  }
+}
+
+ThemeSetProto.newMissingThemeError = function newMissingThemeError (name) {
+  var err = new Error('Could not find a gauge theme named "' + name + '"')
+  Error.captureStackTrace.call(err, newMissingThemeError)
+  err.theme = name
+  err.code = 'EMISSINGTHEME'
+  return err
+}
+
+ThemeSetProto.newMissingDefaultThemeError =
+  function newMissingDefaultThemeError (platformName, hasUnicode, hasColor) {
+    var err = new Error(
+      'Could not find a gauge theme for your platform/unicode/color use combo:\n' +
+    '    platform = ' + platformName + '\n' +
+    '    hasUnicode = ' + hasUnicode + '\n' +
+    '    hasColor = ' + hasColor)
+    Error.captureStackTrace.call(err, newMissingDefaultThemeError)
+    err.platform = platformName
+    err.hasUnicode = hasUnicode
+    err.hasColor = hasColor
+    err.code = 'EMISSINGTHEME'
+    return err
+  }
+
+ThemeSetProto.newThemeSet = function () {
+  var themeset = function (opts) {
+    return themeset.getDefault(opts)
+  }
+  return Object.assign(themeset, ThemeSetProto, {
+    themes: Object.assign({}, this.themes),
+    baseTheme: Object.assign({}, this.baseTheme),
+    defaults: JSON.parse(JSON.stringify(this.defaults || {})),
+  })
+}