var pull = require('pull-stream')
var sbot = require('./scuttlebot')
var hyperscroll = require('hyperscroll')
var stream = require('hyperloadmore/stream')
var h = require('hyperscript')
var ref = require('ssb-ref')
var next = require('pull-next-query')

var render = require('./render').render

var config = require('./config')()
var human = require('human-time')
var tools = require('./tools')
var id = require('./keys').id
var avatar = require('./avatar')
var compose = require('./compose')

var keyPage = function () {
  var screen = document.getElementById('screen')

  var importKey = h('textarea.import', {placeholder: 'Import a new public/private key', name: 'textarea', style: 'width: 97%; height: 100px;'})

  var content = h('div.content',
    h('div.message#key',
      h('h1', 'Your Key'),
      h('p', {innerHTML: 'Your public/private key is: <pre><code>' + localStorage[config.caps.shs + '/secret'] + '</code></pre>'},
      h('button.btn', {onclick: function (e){
          localStorage[config.caps.shs +'/secret'] = ''
          alert('Your public/private key has been deleted')
          e.preventDefault()
          location.hash = ""
          location.reload()
        }}, 'Delete Key')
      ),
      h('hr'),
      h('form',
        importKey,
        h('button.btn', {onclick: function (e){
          if(importKey.value) {
            localStorage[config.caps.shs + '/secret'] = importKey.value.replace(/\s+/g, ' ')
            e.preventDefault()
            alert('Your public/private key has been updated')
          }
          location.hash = ""
          location.reload()
        }}, 'Import key'),
      )
    )
  )
  screen.appendChild(hyperscroll(content))
}

function getMessage (src) {

  var content = h('div.content')
  var screen = document.getElementById('screen')

  screen.appendChild(hyperscroll(content))

  sbot.get(src, function (err, data) {
    if (err) {
      var message = h('div.message', h('div.messageContent', 'The message ', h('a', {href: src}, src), ' is missing. You may not have synced completely with the network yet, or the author is too far away from you on the network.'))
      content.appendChild(message)
    }
    if (data) {
      var message = {}

      message.value = data
      message.key = src

      if (content.firstChild) {
        content.insertBefore(render(message), content.firstChild)
      } else {
        content.appendChild(render(message))
      }
    }
  })
}


function userStream (src) {

  var screen = document.getElementById('screen')
  var content = h('div.content')

  screen.appendChild(hyperscroll(content))

  function createStream (opts) {
    return pull(
      next(sbot.query, opts, ['value', 'timestamp']),
      pull.map(function (msg) {
        return render(msg)
      })
    )
  }

  pull(
    createStream({
      limit: 100,
      reverse: true,
      live: false,
      query: [{$filter: { value: { author: src}}}]
    }),
    stream.bottom(content)
  )

    pull(
    createStream({
      limit: 100,
      old: false,
      live: true,
      query: [{$filter: { value: {author: src}}}]
    }),
    stream.top(content)
  )


  var profile = h('div.content#profile', h('div.message', h('div.messageContent')))

  if (screen.firstChild.firstChild) {
    screen.firstChild.insertBefore(profile, screen.firstChild.firstChild)
  } else {
    screen.firstChild.appendChild(profile)
  }

  var name = avatar.name(src)

  var editname = h('span',
    avatar.name(src),
    h('button.btn', 'New name', {
      onclick: function () {
        var nameput = h('input', {placeholder: name.textContent})
        var nameedit =
          h('span', nameput,
            h('button.btn', 'Preview', {
              onclick: function () {
                if (nameput.value[0] != '@')
                  tobename = nameput.value
                else
                  tobename = nameput.value.substring(1, 100)
                var newname = h('span', h('a', {href: '#' + src}, '@' + tobename), h('button.btn', 'Publish', {
                  onclick: function () {
                    var donename = h('span', h('a', {href: '#' + src}, '@' + tobename))
                    sbot.publish({type: 'about', about: src, name: tobename})
                    localStorage[src + 'name'] = tobename
                    newname.parentNode.replaceChild(donename, newname)
                 }
                }))
                nameedit.parentNode.replaceChild(newname, nameedit)
              }
            })
          )
        editname.parentNode.replaceChild(nameedit, editname)
      }
    })
  )
  var editimage = h('span',
    h('button.btn', 'New image', {
      onclick: function () {
        var upload =
        h('span',
          hyperfile.asDataURL(function (data) {
            if(data) {
              //img.src = data
              var _data = dataurl.parse(data)
              pull(
                pull.once(_data.data),
                sbot.addblob(function (err, hash) {
                  if(err) return alert(err.stack)
                  selected = {
                    link: hash,
                    size: _data.data.length,
                    type: _data.mimetype
                  }
                })
              )
            }
          }),
          h('button.btn', 'Preview image', {
            onclick: function() {
              if (selected) {
                console.log(selected)
                var oldImage = document.getElementById('profileImage')
                var newImage = h('span.avatar--medium', h('img', {src: config.blobsUrl + selected.link}))
                var publish = h('button.btn', 'Publish image', {
                  onclick: function () {
                    sbot.publish({
                      type: 'about',
                      about: src,
                      image: selected
                    }, function (err, published) {
                      console.log(published)
                    })
                  }
                })
                upload.parentNode.replaceChild(publish, upload)
                oldImage.parentNode.replaceChild(newImage, oldImage)
              }
            /*if(selected) {
              api.message_confirm({
                type: 'about',
                about: id,
                image: selected
              })
            } else { alert('select an image before hitting preview')}*/
            }
          })
        )
      editimage.parentNode.replaceChild(upload, editimage)
      }
    })
  )

  var avatars = h('div.avatars',
    h('a', {href: '#' + src},
      h('span.avatar--medium#profileImage', avatar.image(src)),
      editname,
      h('br'),
      editimage
    )
  )
  pull(
    sbot.query({query: [{$filter: { value: { author: src}}}], limit: 1}),
    pull.drain(function (msg) {
      var howlong = h('span', h('br'), ' arrived ', human(new Date(msg.value.timestamp)))
      avatars.appendChild(howlong)
      avatars.appendChild(h('hr'))
    })
  )


  var buttons = h('div.buttons')

  profile.firstChild.firstChild.appendChild(avatars)
  profile.firstChild.firstChild.appendChild(buttons)

  var writeMessage = h('button.btn', 'Public message ', avatar.name(src), {
    onclick: function () {
      opts = {}
      opts.type = 'post'
      opts.mentions = '[' + name.textContent + '](' + src + ')'
      var composer = h('div#composer', h('div.message', h('div.messageContent', compose(opts))))
      profile.appendChild(composer)
    }
  })

  var writePrivate = h('button.btn', 'Private message ', avatar.name(src), {
    onclick: function () {
      opts = {}
      opts.type = 'post'
      opts.mentions = '[' + name.textContent + '](' + src + ')'
      opts.recps = [src, id]
      var composer = h('div#composer', h('div.message', h('div.messageContent', compose(opts))))
      profile.appendChild(composer)
    }
  })

  buttons.appendChild(tools.follow(src))

  buttons.appendChild(h('button.btn', 'Generate follows', {
    onclick: function () {
      profile.firstChild.firstChild.appendChild(tools.getFollowing(src))
      profile.firstChild.firstChild.appendChild(tools.getFollowers(src))
    }
  }))

  buttons.appendChild(h('button.btn', 'Generate blocks', {
    onclick: function () {
      profile.firstChild.firstChild.appendChild(tools.getBlocks(src))
      profile.firstChild.firstChild.appendChild(tools.getBlocked(src))
    }
  }))
  buttons.appendChild(h('hr'))
  buttons.appendChild(tools.mute(src))
  buttons.appendChild(writeMessage)
  buttons.appendChild(writePrivate)
  buttons.appendChild(h('a', {href: '#wall/' + src}, h('button.btn', avatar.name(src), "'s wall")))
}

function mentionsStream (src) {

  var screen = document.getElementById('screen')
  var content = h('div.content')

  screen.appendChild(hyperscroll(content))

  function createStream (opts) {
    return pull(
      next(sbot.backlinks, opts, ['value', 'timestamp']),
      pull.map(function (msg) {
        return render(msg)
      })
    )
  }

  pull(
    createStream({
      limit: 100,
      reverse: true,
      index: 'DTA',
      live: false,
      query: [{$filter: {dest: src}}]
    }),
    stream.bottom(content)
  )

    pull(
    createStream({
      limit: 100,
      old: false,
      index: 'DTA',
      live: true,
      query: [{$filter: {dest: src}}]
    }),
    stream.top(content)
  )
}

function everythingStream () {

  var screen = document.getElementById('screen')
  var content = h('div.content')

  screen.appendChild(hyperscroll(content))

  function createStream (opts) {
    return pull(
      next(sbot.query, opts, ['value', 'timestamp']),
      pull.map(function (msg) {
        if (msg.value) {
          if (msg.value.timestamp > Date.now()) {
            return h('div.future')
          } else {
          return render(msg)
          }
        }
      })
    )
  }

  pull(
    createStream({
      limit: 250,
      reverse: true,
      live: false,
      query: [{$filter: { value: { timestamp: { $gt: 0 }}}}]    
    }),
    stream.bottom(content)
  )

  pull(
    createStream({
      limit: 250,
      old: false,
      live: true,
      query: [{$filter: { value: { timestamp: { $gt: 0 }}}}]
    }),
    stream.top(content)
  )
}

module.exports = function () {
  var src = window.location.hash.substring(1)

  if (ref.isFeed(src)) {
    userStream(src)
  } else if (ref.isMsg(src)) {
    getMessage(src)
  } else if ((src.substring(0, 5) == 'wall/') && (ref.isFeed(src.substring(5)))) {
    mentionsStream(src.substring(5))
  } else if (ref.isMsg(src)) {
    messageStream()
  } else if (src == 'key') {
    keyPage()
  } else {
    everythingStream()
  }

}