// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
// Apache mode by gloony

const CodeMirror = require('codemirror')

CodeMirror.defineMode('apache', function (/* config */) {
  return {
    token: function (stream, state) {
      var sol = stream.sol() || state.afterSection
      var eol = stream.eol()

      state.afterSection = false

      if (sol) {
        if (state.nextMultiline) {
          state.inMultiline = true
          state.nextMultiline = false
        } else {
          state.position = 'def'
        }
      }

      if (eol && !state.nextMultiline) {
        state.inMultiline = false
        state.position = 'def'
      }

      if (sol) {
        while (stream.eatSpace()) {
          /* pass */
        }
      }

      var ch = stream.next()

      if (sol && ch === '#') {
        state.position = 'comment'
        stream.skipToEnd()
        return 'comment'
      } else if (ch === '!' && stream.peek() !== ' ') {
        return 'number'
      } else if (ch === ' ') {
        if (stream.peek() === '[') {
          if (stream.skipTo(']')) {
            stream.next()
          } else {
            stream.skipToEnd()
          }
          return 'keyword'
        } else if (stream.peek() === '(') {
          if (stream.skipTo(')')) {
            stream.next()
          } else {
            stream.skipToEnd()
          }
          return 'string'
        } else {
          state.position = 'unit'
          return 'unit'
        }
      } else if (ch === '"') {
        if (stream.skipTo('"')) {
          stream.next()
        } else {
          stream.skipToEnd()
        }
        return 'quote'
      } else if (sol && ch === '<') {
        if (stream.skipTo('>')) {
          stream.next()
        } else {
          stream.skipToEnd()
        }
        return 'meta'
      } else if (ch === '%') {
        if (stream.peek() === '{') {
          if (stream.skipTo('}')) {
            stream.next()
          } else {
            stream.skipToEnd()
          }
          return 'operator'
        }
      } else if (ch === '$') {
        if (!isNaN(stream.peek()) && stream.peek() !== ' ') {
          while (!isNaN(stream.peek()) && stream.peek() !== ' ') {
            stream.next()
          }
          return 'operator'
        }
      } else if (ch === '\\') {
        if (stream.peek() === '.') {
          if (stream.skipTo(' ')) {
            stream.next()
          } else {
            stream.skipToEnd()
          }
          return 'string'
        }
      } else if (ch === '.') {
        if (stream.peek() === '*') {
          if (stream.skipTo(' ')) {
            stream.next()
          } else {
            stream.skipToEnd()
          }
          return 'string'
        }
      } else if (ch === '^') {
        if (stream.skipTo(' ')) {
          stream.next()
        } else {
          stream.skipToEnd()
        }
        return 'string'
      }

      return state.position
    },

    // electricInput: /<\/[\s\w:]+>$/,
    lineComment: '#',
    fold: 'brace',

    startState: function () {
      return {
        position: 'def',
        nextMultiline: false,
        inMultiline: false,
        afterSection: false,
      }
    },
  }
})

CodeMirror.defineMIME('text/apache', 'apache')
CodeMirror.defineMIME('text/htaccess', 'apache')