import { createSSRApp } from 'vue'
import App from './App.vue'
// #ifdef H5
import VConsole from 'vconsole'
// #endif

// Polyfill for String.prototype.startsWith (for older browsers)
if (!String.prototype.startsWith) {
  String.prototype.startsWith = function(search, pos) {
    pos = !pos || pos < 0 ? 0 : +pos
    return this.substring(pos, pos + search.length) === search
  }
}

// Polyfill for String.prototype.endsWith (for older browsers)
if (!String.prototype.endsWith) {
  String.prototype.endsWith = function(search, this_len) {
    if (this_len === undefined || this_len > this.length) {
      this_len = this.length
    }
    return this.substring(this_len - search.length, this_len) === search
  }
}

// Polyfill for String.prototype.includes (for older browsers)
if (!String.prototype.includes) {
  String.prototype.includes = function(search, start) {
    if (typeof start !== 'number') {
      start = 0
    }
    if (start + search.length > this.length) {
      return false
    } else {
      return this.indexOf(search, start) !== -1
    }
  }
}

// Polyfill for Array.prototype.includes (for older browsers)
if (!Array.prototype.includes) {
  Array.prototype.includes = function(searchElement, fromIndex) {
    if (this == null) {
      throw new TypeError('"this" is null or not defined')
    }
    var o = Object(this)
    var len = o.length >>> 0
    if (len === 0) {
      return false
    }
    var n = fromIndex | 0
    var k = Math.max(n >= 0 ? n : len - Math.abs(n), 0)
    while (k < len) {
      if (o[k] === searchElement) {
        return true
      }
      k++
    }
    return false
  }
}

// Polyfill for String.prototype.repeat (for older browsers)
if (!String.prototype.repeat) {
  String.prototype.repeat = function(count) {
    if (this == null) {
      throw new TypeError("can't convert " + this + ' to object')
    }
    var str = '' + this
    count = +count
    if (count != count) {
      count = 0
    }
    if (count < 0) {
      throw new RangeError('repeat count must be non-negative')
    }
    if (count == Infinity) {
      throw new RangeError('repeat count must be less than infinity')
    }
    count = Math.floor(count)
    if (str.length == 0 || count == 0) {
      return ''
    }
    if (str.length * count >= 1 << 28) {
      throw new RangeError('repeat count must not overflow maximum string size')
    }
    var maxCount = str.length * count
    count = Math.floor(Math.log(count) / Math.log(2))
    while (count) {
      str += str
      count--
    }
    str += str.substring(0, maxCount - str.length)
    return str
  }
}

// Polyfill for String.prototype.padStart (for older browsers)
if (!String.prototype.padStart) {
  String.prototype.padStart = function padStart(targetLength, padString) {
    targetLength = targetLength >> 0
    padString = String(typeof padString !== 'undefined' ? padString : ' ')
    if (this.length >= targetLength) {
      return String(this)
    } else {
      targetLength = targetLength - this.length
      if (targetLength > padString.length) {
        padString += padString.repeat(targetLength / padString.length)
      }
      return padString.slice(0, targetLength) + String(this)
    }
  }
}

// Polyfill for String.prototype.padEnd (for older browsers)
if (!String.prototype.padEnd) {
  String.prototype.padEnd = function padEnd(targetLength, padString) {
    targetLength = targetLength >> 0
    padString = String(typeof padString !== 'undefined' ? padString : ' ')
    if (this.length >= targetLength) {
      return String(this)
    } else {
      targetLength = targetLength - this.length
      if (targetLength > padString.length) {
        padString += padString.repeat(targetLength / padString.length)
      }
      return String(this) + padString.slice(0, targetLength)
    }
  }
}

// 初始化vConsole用于移动端调试
// #ifdef H5
new VConsole()
// #endif

export function createApp() {
  const app = createSSRApp(App)
  return {
    app
  }
}