--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Window to list beers and other beer-related views
+module beer_views
+
+import base
+
+# View about a beer, with its name, description and rating
+class BeerView
+ super VerticalLayout
+ super ItemView
+
+ autoinit beer_info, parent
+
+ # Beer information
+ var beer_info: BeerAndRatings
+
+ # Buttons to realize the rating buttons
+ var star_buttons = new Array[StarButton]
+
+ # Layout of the first line with the name and `star_buttons`
+ var top_line_layout = new HorizontalLayout(parent=self)
+
+ init
+ do
+ var lbl_name = new Label(parent=top_line_layout, text=beer_info.beer.name)
+ lbl_name.size = 1.25
+
+ var desc = beer_info.beer.desc
+ if beer_info.is_new then desc += " (New)".t
+ var lbl_desc = new Label(parent=self, text=desc)
+
+ var lbl_stats = new Label(parent=self, text=beer_info.rating_text)
+ lbl_stats.size = 0.5
+
+ var badges = beer_info.badges
+ if badges != null then
+ var lbl_comment = new Label(parent=self, text=badges.join(" "))
+ lbl_comment.size = 0.5
+ end
+
+ var rating = beer_info.user_rating or else 0
+ setup_stars rating
+ end
+
+ # Prepare and display the rating controls
+ fun setup_stars(rating: Int)
+ do
+ var l_stars = new HorizontalLayout(parent=top_line_layout)
+
+ for i in [1..5] do
+ var but = new StarButton(beer_info.beer, i, i <= rating, parent=l_stars)
+ but.size = 1.5
+ but.observers.add self
+ star_buttons.add but
+ end
+ end
+
+ redef fun on_event(event)
+ do
+ assert event isa ButtonPressEvent
+
+ var sender = event.sender
+ if sender isa StarButton then
+ on_review sender.rating
+ end
+ end
+
+ # Post a user review
+ fun on_review(rating: Int)
+ do
+ var beer_id = beer_info.beer.id
+ (new ReviewAction(app.window, "rest/review?token={app.token}&beer={beer_id}&rating={rating}")).start
+
+ # Update UI
+ var i = 1
+ for but in star_buttons do
+ but.on = i <= rating
+ i += 1
+ end
+ end
+end
+
+# Beers pane listing the available beers
+class BeersWindow
+ super Window
+
+ private var layout = new VerticalLayout(parent=self)
+ private var list_beers = new ListLayout(parent=layout)
+
+ init
+ do
+ if debug then print "BenitluxWindow::init"
+
+ action_list_beers
+ end
+
+ # Send HTTP request to list beers
+ fun action_list_beers
+ do (new ListBeersAction(self, "rest/list?token={app.token}")).start
+end
+
+# ---
+# Customized buttons
+
+# View to describe and rate a eer
+class RatingView
+ super View
+
+ autoinit beer, init_rating, parent, enabled
+
+ # Beer id
+ var beer: Beer
+
+ # Previous rating, 0 for none
+ var init_rating: Int
+
+ redef fun parent=(layout) do end
+
+ redef fun enabled=(value) do end
+end
+
+# Button with a star, filled or not, for rating beers
+class StarButton
+ super Button
+
+ autoinit beer, rating, on, parent, enabled
+
+ # Info on the beer to rate
+ var beer: Beer
+
+ # Rating of `beer`
+ var rating: Int
+
+ # Set if the star is filled
+ fun on=(on: Bool) is autoinit do text = if on then "★" else "☆"
+end
+
+redef class BeerAndRatings
+ # Text version of the ratings
+ fun rating_text: String
+ do
+ var txt = new Array[String]
+
+ var global = global
+ if global != null and global.count > 0 then
+ txt.add "%0★ %1 reviews".t.format(global.average.to_precision(1), global.count)
+ else txt.add "No reviews yet".t
+
+ var local = followed
+ if local != null and local.count > 0 then
+ txt.add ", friends: %0☆ %1 reviews".t.format(local.average.to_precision(1), local.count)
+ end
+
+ return txt.join
+ end
+end
+
+redef class Beer
+ # Capitalize first letter for a prettier display
+ redef fun desc
+ do
+ var desc = super
+ if desc.length == 0 then return desc
+
+ var first_letter = desc.first.to_upper
+ return first_letter.to_s + desc.substring_from(1)
+ end
+end
+
+# Comparator of beers
+class BeerComparator
+ super Comparator
+
+ redef type COMPARED: BeerAndRatings
+
+ redef fun compare(a, b) do return value_of(a) <=> value_of(b)
+
+ private fun value_of(beer: COMPARED): Float
+ do
+ var max = 0.0
+ var value = 0.0
+
+ var rating = beer.user_rating
+ if rating != null then
+ max += 20.0
+ value += rating.to_f * 4.0
+ end
+
+ var followed = beer.followed
+ if followed != null then
+ max += 10.0
+ value += followed.average * 2.0
+ end
+
+ var global = beer.global
+ if global != null then
+ max += 5.0
+ value += global.average
+ end
+
+ return (max - value)/max
+ end
+end
+
+# Async request to submit a review
+class ReviewAction
+ super WindowHttpRequest
+
+ redef fun on_load(res)
+ do
+ if intercept_error(res) then return
+ end
+end
+
+# Async request to update the beer list
+class ListBeersAction
+ super WindowHttpRequest
+
+ redef type W: BeersWindow
+
+ redef fun on_load(beers)
+ do
+ window.layout.remove window.list_beers
+ window.list_beers = new ListLayout(parent=window.layout)
+
+ if intercept_error(beers) then return
+
+ if not beers isa Array[BeerAndRatings] then
+ app.feedback "Communication Error".t
+ return
+ end
+
+ # Sort beers per preference
+ var comparator = new BeerComparator
+ comparator.sort beers
+
+ # Populate the list
+ for beer_and_rating in beers do
+ var view = new BeerView(beer_and_rating, parent=window.list_beers)
+ end
+ end
+end
+
+redef class BestBeerBadge
+ redef fun to_s do return "Favorite beer on the menu.".t
+end
+
+redef class FavoriteBeerBadge
+ redef fun to_s do return "Favorite of %0.".t.format(users.join(", ", " & "))
+end
+
+redef class SimilarBeerBadge
+ redef fun to_s do return "Similar to %0.".t.format(beers.join(", ", " & "))
+end
+
+redef class Array[E]
+ # Pretty compressed list of this list of beer as a pseudo diff
+ #
+ # Require: `self isa Array[BeerAndRatings]`
+ fun beers_to_notification: String
+ do
+ assert self isa Array[BeerAndRatings]
+
+ # Sort beers per preference
+ var comparator = new BeerComparator
+ comparator.sort self
+
+ # Organize the notification line per line
+ # First the new beers, then the fixed one.
+ var lines = new Array[String]
+ var fix_beers = new Array[String]
+ for bar in self do
+ var beer = bar.beer
+ if bar.is_new then
+ lines.add "+ {beer.name}: {beer.desc}"
+ else fix_beers.add beer.name
+ end
+
+ # Show a few fixed beers per line
+ if fix_beers.not_empty then
+ var line = new FlatBuffer
+ line.append "= "
+ for i in fix_beers.length.times, beer in fix_beers do
+
+ if i > 0 then line.append ", "
+
+ var l = line.length + beer.length
+ if l < 42 then # Very approximate width of a notification on Android
+ line.append beer
+ continue
+ end
+
+ lines.add line.to_s
+
+ line = new FlatBuffer
+ line.append "= "
+ line.append beer
+ end
+
+ lines.add line.to_s
+ end
+
+ return lines.join("\n")
+ end
+
+ # Does `self` has a new beer?
+ #
+ # Require: `self isa Array[BeerAndRatings]`
+ fun has_new_beers: Bool
+ do
+ assert self isa Array[BeerAndRatings]
+
+ for beer in self do if beer.is_new then return true
+ return false
+ end
+end
nitlanguage / nit.git / blobdiff