git ssb

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var nest = require('depnest')
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var ref = require('ssb-ref')
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var {Value, h, when, computed, map, send, dictToCollection} = require('mutant')
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var extend = require('xtend')
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exports.needs = nest({
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  'about.obs': {
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    name: 'first',
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    names: 'first',
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    images: 'first',
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    color: 'first'
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  },
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  'blob.sync.url': 'first',
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  'about.html.image': 'first',
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  'feed.html.rollup': 'first',
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  'sbot.pull.userFeed': 'first',
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  'sbot.async.publish': 'first',
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  'keys.sync.id': 'first',
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  'profile.obs': {
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    followers: 'first',
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    following: 'first',
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    names: 'first'
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  }
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})
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exports.gives = nest('page.html.render')
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exports.create = function (api) {
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  return nest('page.html.render', function profile (id) {
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    if (!ref.isFeed(id)) return
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    var name = api.about.obs.name(id)
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    var yourId = api.keys.sync.id()
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    var yourFollows = api.profile.obs.following(yourId)
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    var rawFollowers = api.profile.obs.followers(id)
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    var rawFollowing = api.profile.obs.following(id)
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    var doneWaiting = Value(false)
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    setTimeout(() => doneWaiting.set(true), 1e3)
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    var friendsLoaded = computed([rawFollowers, rawFollowing, doneWaiting], (...x) => x.every(Boolean))
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    var friends = computed([rawFollowing, rawFollowers], (following, followers) => {
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      return Array.from(following).filter(follow => followers.has(follow))
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    })
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    var following = computed([rawFollowing, friends], (following, friends) => {
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      return Array.from(following).filter(follow => !friends.includes(follow))
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    })
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    var followers = computed([rawFollowers, friends], (followers, friends) => {
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      return Array.from(followers).filter(follower => !friends.includes(follower))
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    })
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    var isFriends = computed([friends], function (friends) {
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      return friends.includes(yourId)
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    })
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    var followsYou = computed([following], function (followsYou) {
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      return followsYou.includes(yourId)
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    })
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    var youFollow = computed([yourFollows], function (youFollow) {
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      return youFollow.has(id)
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    })
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    var names = api.about.obs.names(id)
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    var images = api.about.obs.images(id)
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    var namePicker = h('div', {className: 'Picker'}, [
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      map(dictToCollection(names), (item) => {
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        var isSelf = computed(item.value, (ids) => ids.includes(id))
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        var isAssigned = computed(item.value, (ids) => ids.includes(yourId))
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        return h('a.name', {
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          classList: [
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            when(isSelf, '-self'),
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            when(isAssigned, '-assigned')
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          ],
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          title: nameList(when(isSelf, 'Self Assigned', 'Assigned By'), item.value)
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        }, [
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          item.key
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        ])
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      })
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    ])
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    var imagePicker = h('div', {className: 'Picker'}, [
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      map(dictToCollection(images), (item) => {
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        var isSelf = computed(item.value, (ids) => ids.includes(id))
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        var isAssigned = computed(item.value, (ids) => ids.includes(yourId))
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        return h('a.name', {
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          classList: [
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            when(isSelf, '-self'),
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            when(isAssigned, '-assigned')
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          ],
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          title: nameList(when(isSelf, 'Self Assigned', 'Assigned By'), item.value)
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        }, [
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          h('img', {
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            className: 'Avatar',
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            style: { 'background-color': api.about.obs.color(id) },
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            src: computed(item.key, api.blob.sync.url)
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          })
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        ])
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      })
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    ])
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    var prepend = h('header', {className: 'ProfileHeader'}, [
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      h('div.image', api.about.html.image(id)),
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      h('div.main', [
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        h('div.title', [
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          h('h1', ['@', name]),
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          h('div.meta', [
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            when(id === yourId, [
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              h('a.-disabled', 'This is you!')
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            ], [
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              when(youFollow,
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                h('a.ToggleButton.-unsubscribe', {
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                  'href': '#',
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                  'title': 'Click to unfollow',
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                  'ev-click': send(unfollow, id)
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                }, when(isFriends, 'Friends', 'Following')),
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                h('a.ToggleButton.-subscribe', {
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                  'href': '#',
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                  'ev-click': send(follow, id)
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                }, when(followsYou, 'Follow Back', 'Follow'))
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              )
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            ])
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          ])
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        ]),
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        h('section', [ namePicker, imagePicker ])
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      ])
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    ])
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    return h('div', {className: 'SplitView'}, [
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      h('div.main', [
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        api.feed.html.rollup((opts) => {
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          return api.sbot.pull.userFeed(extend(opts, {id}))
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        }, { prepend })
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      ]),
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      h('div.side.-right', [
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        when(friendsLoaded,
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          h('div', [
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            renderContactBlock('Friends', friends),
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            renderContactBlock('Followers', followers),
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            renderContactBlock('Following', following)
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          ]),
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          h('div', {className: 'Loading'})
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        )
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      ])
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    ])
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  })
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  function renderContactBlock (title, profiles) {
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    return [
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      when(computed(profiles, x => x.length), h('h2', title)),
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      h('div', {
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        classList: 'ProfileList'
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      }, [
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        map(profiles, (id) => {
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          return h('a.profile', {
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            href: id
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          }, [
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            h('div.avatar', [api.about.html.image(id)]),
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            h('div.main', [
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              h('div.name', [ '@', api.about.obs.name(id) ])
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            ])
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          ])
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        }, {
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          idle: true
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        })
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      ])
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    ]
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  }
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  function follow (id) {
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    api.sbot.async.publish({
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      type: 'contact',
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      contact: id,
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      following: true
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    })
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  }
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  function unfollow (id) {
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    api.sbot.async.publish({
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      type: 'contact',
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      contact: id,
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      following: false
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    })
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  }
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  function nameList (prefix, ids) {
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    var items = map(ids, api.about.obs.name)
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    return computed([prefix, items], (prefix, names) => {
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      return (prefix ? (prefix + '\n') : '') + names.map((n) => `- ${n}`).join('\n')
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    })
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  }
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}
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