Refactoring, forgotten files

src/services/theme_data/theme_data.service.js

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+import { convert, brightness, contrastRatio } from 'chromatism'
+import { alphaBlend, alphaBlendLayers, getTextColor, mixrgb } from '../color_convert/color_convert.js'
+
+export const CURRENT_VERSION = 3
+/* This is a definition of all layer combinations
+ * each key is a topmost layer, each value represents layer underneath
+ * this is essentially a simplified tree
+ */
+export const LAYERS = {
+  undelay: null, // root
+  topBar: null, // no transparency support
+  badge: null, //  no transparency support
+  fg: null,
+  bg: 'underlay',
+  panel: 'bg',
+  btn: 'bg',
+  btnPanel: 'panel',
+  btnTopBar: 'topBar',
+  input: 'bg',
+  inputPanel: 'panel',
+  inputTopBar: 'topBar',
+  alert: 'bg',
+  alertPanel: 'panel'
+}
+
+export const SLOT_INHERITANCE = {
+  bg: null,
+  fg: null,
+  text: null,
+  underlay: '#000000',
+  link: '--accent',
+  accent: '--link',
+  faint: '--text',
+  faintLink: '--link',
+
+  cBlue: '#0000ff',
+  cRed: '#FF0000',
+  cGreen: '#00FF00',
+  cOrange: '#E3FF00',
+
+  lightBg: {
+    depends: ['bg'],
+    color: (mod, bg) => brightness(5 * mod, bg).rgb
+  },
+  lightText: {
+    depends: ['text'],
+    color: (mod, text) => brightness(20 * mod, text).rgb
+  },
+
+  border: {
+    depends: 'fg',
+    color: (mod, fg) => brightness(2 * mod, fg).rgb
+  },
+
+  linkBg: {
+    depends: ['accent', 'bg'],
+    color: (mod, accent, bg) => alphaBlend(accent, 0.4, bg).rgb
+  },
+
+  icon: {
+    depends: ['bg', 'text'],
+    color: (mod, bg, text) => mixrgb(bg, text)
+  },
+
+  // Foreground
+  fgText: {
+    depends: ['text'],
+    layer: 'fg',
+    textColor: true
+  },
+  fgLink: {
+    depends: ['link'],
+    layer: 'fg',
+    textColor: 'preserve'
+  },
+
+  // Panel header
+  panel: '--fg',
+  panelText: {
+    depends: ['fgText'],
+    layer: 'panel',
+    textColor: true
+  },
+  panelFaint: {
+    depends: ['fgText'],
+    layer: 'panel',
+    textColor: true
+  },
+  panelLink: {
+    depends: ['fgLink'],
+    layer: 'panel',
+    textColor: 'preserve'
+  },
+
+  // Top bar
+  topBar: '--fg',
+  topBarText: {
+    depends: ['fgText'],
+    layer: 'topBar',
+    textColor: true
+  },
+  topBarLink: {
+    depends: ['fgLink'],
+    layer: 'topBar',
+    textColor: 'preserve'
+  },
+
+  // Buttons
+  btn: '--fg',
+  btnText: {
+    depends: ['fgText'],
+    layer: 'btn'
+  },
+  btnPanelText: {
+    depends: ['panelText'],
+    layer: 'btnPanel',
+    variant: 'btn',
+    textColor: true
+  },
+  btnTopBarText: {
+    depends: ['topBarText'],
+    layer: 'btnTopBar',
+    variant: 'btn',
+    textColor: true
+  },
+
+  // Input fields
+  input: '--fg',
+  inputText: {
+    depends: ['text'],
+    layer: 'input',
+    textColor: true
+  },
+  inputPanelText: {
+    depends: ['panelText'],
+    layer: 'inputPanel',
+    variant: 'input',
+    textColor: true
+  },
+  inputTopbarText: {
+    depends: ['topBarText'],
+    layer: 'inputTopBar',
+    variant: 'input',
+    textColor: true
+  },
+
+  alertError: '--cRed',
+  alertErrorText: {
+    depends: ['text', 'alertError'],
+    layer: 'alert',
+    variant: 'alertError',
+    textColor: true
+  },
+  alertErrorPanelText: {
+    depends: ['panelText', 'alertError'],
+    layer: 'alertPanel',
+    variant: 'alertError',
+    textColor: true
+  },
+
+  alertWarning: '--cOrange',
+  alertWarningText: {
+    depends: ['text', 'alertWarning'],
+    layer: 'alert',
+    variant: 'alertWarning',
+    textColor: true
+  },
+  alertWarningPanelText: {
+    depends: ['panelText', 'alertWarning'],
+    layer: 'alertPanel',
+    variant: 'alertWarning',
+    textColor: true
+  },
+
+  badgeNotification: '--cRed',
+  badgeNotificationText: {
+    depends: ['text', 'badgeNotification'],
+    layer: 'badge',
+    variant: 'badgeNotification',
+    textColor: 'bw'
+  }
+}
+
+export const getLayersArray = (layer, data = LAYERS) => {
+  let array = [layer]
+  let parent = data[layer]
+  while (parent) {
+    array.unshift(parent)
+    parent = data[parent]
+  }
+  return array
+}
+
+export const getLayers = (layer, variant = layer, colors, opacity) => {
+  return getLayersArray(layer).map((currentLayer) => ([
+    currentLayer === layer
+      ? colors[variant]
+      : colors[currentLayer],
+    opacity[currentLayer]
+  ]))
+}
+
+const getDependencies = (key, inheritance) => {
+  const data = inheritance[key]
+  if (typeof data === 'string' && data.startsWith('--')) {
+    return [data.substring(2)]
+  } else {
+    if (data === null) return []
+    const { depends, layer, variant } = data
+    const layerDeps = layer
+      ? getLayersArray(layer).map(currentLayer => {
+        return currentLayer === layer
+          ? variant || layer
+          : currentLayer
+      })
+      : []
+    if (Array.isArray(depends)) {
+      return [...depends, ...layerDeps]
+    } else {
+      return [...layerDeps]
+    }
+  }
+}
+
+export const topoSort = (
+  inheritance = SLOT_INHERITANCE,
+  getDeps = getDependencies
+) => {
+  // This is an implementation of https://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm
+
+  const allKeys = Object.keys(inheritance)
+  const whites = new Set(allKeys)
+  const grays = new Set()
+  const blacks = new Set()
+  const unprocessed = [...allKeys]
+  const output = []
+
+  const step = (node) => {
+    if (whites.has(node)) {
+      // Make node "gray"
+      whites.delete(node)
+      grays.add(node)
+      // Do step for each node connected to it (one way)
+      getDeps(node, inheritance).forEach(step)
+      // Make node "black"
+      grays.delete(node)
+      blacks.add(node)
+      // Put it into the output list
+      output.push(node)
+    } else if (grays.has(node)) {
+      console.debug('Cyclic depenency in topoSort, ignoring')
+      output.push(node)
+    } else if (blacks.has(node)) {
+      // do nothing
+    } else {
+      throw new Error('Unintended condition in topoSort!')
+    }
+  }
+  while (unprocessed.length > 0) {
+    step(unprocessed.pop())
+  }
+  return output
+}
+
+export const SLOT_ORDERED = topoSort(SLOT_INHERITANCE)
+
+export const getColors = (sourceColors, sourceOpacity, mod) => SLOT_ORDERED.reduce((acc, key) => {
+  const value = SLOT_INHERITANCE[key]
+  if (sourceColors[key]) {
+    return { ...acc, [key]: { ...sourceColors[key] } }
+  } else if (typeof value === 'string' && value.startsWith('#')) {
+    return { ...acc, [key]: convert(value).rgb }
+  } else {
+    const isObject = typeof value === 'object'
+    const defaultColorFunc = (mod, dep) => ({ ...dep })
+    const deps = getDependencies(key, SLOT_INHERITANCE)
+    const colorFunc = (isObject && value.color) || defaultColorFunc
+
+    if (value.textColor) {
+      const bg = alphaBlendLayers(
+        { ...acc[deps[0]] },
+        getLayers(
+          value.layer,
+          value.variant || value.layer,
+          acc,
+          sourceOpacity
+        )
+      )
+      if (value.textColor === 'bw') {
+        return {
+          ...acc,
+          [key]: contrastRatio(bg)
+        }
+      } else {
+        return {
+          ...acc,
+          [key]: getTextColor(
+            bg,
+            { ...acc[deps[0]] },
+            value.textColor === 'preserve'
+          )
+        }
+      }
+    } else {
+      console.log('BENIS', key, deps, deps.map((dep) => ({ ...acc[dep] })))
+      return {
+        ...acc,
+        [key]: colorFunc(
+          mod,
+          ...deps.map((dep) => ({ ...acc[dep] }))
+        )
+      }
+    }
+  }
+}, {})