1# frozen_string_literal: true
2
3require "ruby-bandwidth-iris"
4Faraday.default_adapter = :em_synchrony
5
6require "cbor"
7require "countries"
8
9require_relative "area_code_repo"
10require_relative "form_template"
11
12class TelSelections
13 THIRTY_DAYS = 60 * 60 * 24 * 30
14
15 def initialize(redis: REDIS, db: DB, memcache: MEMCACHE)
16 @redis = redis
17 @memcache = memcache
18 @db = db
19 end
20
21 def set(jid, tel)
22 @redis.setex("pending_tel_for-#{jid}", THIRTY_DAYS, tel.pending_value)
23 end
24
25 def set_tel(jid, tel)
26 ChooseTel::Tn::LocalInventory.fetch(tel).then do |local_inv|
27 set(
28 jid,
29 local_inv || ChooseTel::Tn::Bandwidth.new(tel)
30 )
31 end
32 end
33
34 def delete(jid)
35 @redis.del("pending_tel_for-#{jid}")
36 end
37
38 def [](jid)
39 @redis.get("pending_tel_for-#{jid}").then do |tel|
40 tel ? HaveTel.new(tel) : ChooseTel.new(db: @db, memcache: @memcache)
41 end
42 end
43
44 class HaveTel
45 def initialize(tel)
46 @tel = ChooseTel::Tn.for_pending_value(tel)
47 end
48
49 def choose_tel
50 EMPromise.resolve(@tel)
51 end
52 end
53
54 class ChooseTel
55 def initialize(db: DB, memcache: MEMCACHE)
56 @db = db
57 @memcache = memcache
58 end
59
60 def choose_tel(error: nil)
61 Command.reply { |reply|
62 reply.allowed_actions = [:next]
63 reply.command << FormTemplate.render("tn_search", error: error)
64 }.then do |iq|
65 available = AvailableNumber.for(iq.form, db: @db, memcache: @memcache)
66 next available if available.is_a?(String)
67
68 choose_from_list(available.tns)
69 rescue StandardError
70 choose_tel(error: $!.to_s)
71 end
72 end
73
74 def choose_from_list(tns)
75 raise "No numbers found, try another search." if tns.empty?
76
77 Command.reply { |reply|
78 reply.allowed_actions = [:next, :prev]
79 reply.command << FormTemplate.render("tn_list", tns: tns)
80 }.then { |iq|
81 choose_from_list_result(tns, iq)
82 }
83 end
84
85 def choose_from_list_result(tns, iq)
86 tel = iq.form.field("tel")&.value
87 return choose_tel if iq.prev? || !tel
88
89 tns.find { |tn| tn.tel == tel } || Tn::Bandwidth.new(Tn.new(tel))
90 end
91
92 class AvailableNumber
93 def self.for(form, db: DB, memcache: MEMCACHE)
94 qs = form.field("q")&.value.to_s.strip
95 return qs if qs =~ /\A\+1\d{10}\Z/
96
97 q = Q.for(feelinglucky(qs, form), db: db, memcache: memcache)
98
99 new(
100 q.iris_query
101 .merge(enableTNDetail: true, LCA: false)
102 .merge(Quantity.for(form).iris_query),
103 q.sql_query,
104 fallback: q.fallback, memcache: memcache, db: db
105 )
106 end
107
108 ACTION_FIELD = "http://jabber.org/protocol/commands#actions"
109
110 def self.feelinglucky(q, form)
111 return q unless q.empty?
112 return q unless form.field(ACTION_FIELD)&.value == "feelinglucky"
113
114 "810"
115 end
116
117 def initialize(
118 iris_query, sql_query, fallback: [], memcache: MEMCACHE, db: DB
119 )
120 @iris_query = iris_query
121 @sql_query = sql_query
122 @fallback = fallback
123 @memcache = memcache
124 @db = db
125 end
126
127 def tns
128 Command.log.debug("BandwidthIris::AvailableNumber.list", @iris_query)
129 unless (result = fetch_cache)
130 result = fetch_bandwidth_inventory + fetch_local_inventory.sync
131 end
132 return next_fallback if result.empty? && !@fallback.empty?
133
134 result
135 end
136
137 def fetch_bandwidth_inventory
138 BandwidthIris::AvailableNumber
139 .list(@iris_query)
140 .map { |tn| Tn::Bandwidth.new(Tn::Option.new(**tn)) }
141 end
142
143 def fetch_local_inventory
144 @db.query_defer(@sql_query[0], @sql_query[1..-1]).then { |rows|
145 rows.map { |row|
146 Tn::LocalInventory.new(Tn::Option.new(
147 full_number: row["tel"].sub(/\A\+1/, ""),
148 city: row["locality"],
149 state: row["region"]
150 ), row["bandwidth_account_id"])
151 }
152 }
153 end
154
155 def next_fallback
156 @memcache.set(cache_key, CBOR.encode([]), 43200)
157 fallback = @fallback.shift
158 self.class.new(
159 fallback.iris_query.merge(
160 enableTNDetail: true, quantity: @iris_query[:quantity]
161 ),
162 fallback.sql_query,
163 fallback: @fallback,
164 memcache: @memcache, db: @db
165 ).tns
166 end
167
168 def fetch_cache
169 promise = EMPromise.new
170 @memcache.get(cache_key, &promise.method(:fulfill))
171 result = promise.sync
172 result ? CBOR.decode(result) : nil
173 end
174
175 def cache_key
176 "BandwidthIris_#{@iris_query.to_a.flatten.join(',')}"
177 end
178
179 class Quantity
180 def self.for(form)
181 if form.field(ACTION_FIELD)&.value == "feelinglucky"
182 return Default.new
183 end
184
185 rsm_max = form.find(
186 "ns:set/ns:max",
187 ns: "http://jabber.org/protocol/rsm"
188 ).first
189 return new(rsm_max.content.to_i) if rsm_max
190
191 Default.new
192 end
193
194 def initialize(quantity)
195 @quantity = quantity
196 end
197
198 def iris_query
199 { quantity: @quantity }
200 end
201
202 # NOTE: Gajim sends back the whole list on submit, so big
203 # lists can cause issues
204 class Default
205 def iris_query
206 { quantity: 10 }
207 end
208 end
209 end
210 end
211
212 class Tn
213 attr_reader :tel
214
215 def self.for_pending_value(value)
216 if value.start_with?("LocalInventory/")
217 LocalInventory.new(
218 *Tn.new(value.sub(/\ALocalInventory\//, "")).split("/", 2)
219 )
220 else
221 Bandwidth.new(Tn.new(value))
222 end
223 end
224
225 def initialize(tel)
226 @tel = tel
227 end
228
229 def formatted_tel
230 @tel =~ /\A\+1(\d{3})(\d{3})(\d+)\Z/
231 "(#{$1}) #{$2}-#{$3}"
232 end
233
234 def to_s
235 formatted_tel
236 end
237
238 class Option < Tn
239 def initialize(full_number:, city:, state:, **)
240 @tel = "+1#{full_number}"
241 @locality = city
242 @region = state
243 end
244
245 def option
246 op = Blather::Stanza::X::Field::Option.new(value: tel, label: to_s)
247 op << reference
248 op
249 end
250
251 def reference
252 Nokogiri::XML::Builder.new { |xml|
253 xml.reference(
254 xmlns: "urn:xmpp:reference:0",
255 begin: 0,
256 end: formatted_tel.length - 1,
257 type: "data",
258 uri: "tel:#{tel}"
259 )
260 }.doc.root
261 end
262
263 def to_s
264 "#{formatted_tel} (#{@locality}, #{@region})"
265 end
266 end
267
268 class Bandwidth < SimpleDelegator
269 def pending_value
270 tel
271 end
272
273 def reserve(customer)
274 BandwidthTnReservationRepo.new.ensure(customer, tel)
275 end
276
277 def order(_, customer)
278 BandwidthTnReservationRepo.new.get(customer, tel).then do |rid|
279 BandwidthTNOrder.create(
280 tel,
281 customer_order_id: customer.customer_id,
282 reservation_id: rid
283 ).then(&:poll)
284 end
285 end
286 end
287
288 class LocalInventory < SimpleDelegator
289 def self.fetch(tn, db: DB)
290 db.query_defer("SELECT * FROM tel_inventory WHERE tel = $1", [tn])
291 .then { |rows|
292 rows.first&.then { |row|
293 new(Tn::Option.new(
294 full_number: row["tel"].sub(/\A\+1/, ""),
295 city: row["locality"],
296 state: row["region"]
297 ), row["bandwidth_account_id"])
298 }
299 }
300 end
301
302 def initialize(tn, bandwidth_account_id)
303 super(tn)
304 @bandwidth_account_id = bandwidth_account_id
305 end
306
307 def pending_value
308 "LocalInventory/#{tel}/#{@bandwidth_account_id}"
309 end
310
311 def reserve(*)
312 EMPromise.resolve(nil)
313 end
314
315 def order(db, customer)
316 BandwidthTnRepo.new.move(
317 tel, customer.customer_id, @bandwidth_account_id
318 )
319 db.exec_defer("DELETE FROM tel_inventory WHERE tel = $1", [tel])
320 .then { |r| raise unless r.cmd_tuples.positive? }
321 end
322 end
323 end
324
325 class Q
326 def self.register(regex, &block)
327 @queries ||= []
328 @queries << [regex, block]
329 end
330
331 def self.for(q, **kwa)
332 q = replace_region_names(q) unless q.start_with?("~")
333
334 @queries.each do |(regex, block)|
335 match_data = (q =~ regex)
336 return block.call($1 || $&, *$~.to_a[2..-1], **kwa) if match_data
337 end
338
339 raise "Format not recognized: #{q}"
340 end
341
342 def self.replace_region_names(query)
343 ISO3166::Country[:US].subdivisions.merge(
344 ISO3166::Country[:CA].subdivisions
345 ).reduce(query) do |q, (code, region)|
346 ([region.name] + Array(region.unofficial_names))
347 .reduce(q) do |r, name|
348 r.sub(/#{name}\s*(?!,)/i, code)
349 end
350 end
351 end
352
353 def initialize(q, **)
354 @q = q
355 end
356
357 def fallback
358 []
359 end
360
361 {
362 areaCode: [:AreaCode, /\A[2-9][0-9]{2}\Z/],
363 npaNxx: [:NpaNxx, /\A(?:[2-9][0-9]{2}){2}\Z/],
364 npaNxxx: [:NpaNxxx, /\A(?:[2-9][0-9]{2}){2}[0-9]\Z/]
365 }.each do |k, args|
366 klass = const_set(
367 args[0],
368 Class.new(Q) {
369 define_method(:iris_query) do
370 { k => @q }
371 end
372
373 define_method(:sql_query) do
374 [
375 "SELECT * FROM tel_inventory " \
376 "WHERE available_after < LOCALTIMESTAMP AND tel LIKE ?",
377 "+1#{@q}%"
378 ]
379 end
380 }
381 )
382
383 args[1..-1].each do |regex|
384 register(regex) { |q, **| klass.new(q) }
385 end
386 end
387
388 class PostalCode < Q
389 Q.register(/\A\d{5}(?:-\d{4})?\Z/, &method(:new))
390
391 def iris_query
392 { zip: @q }
393 end
394
395 def sql_query
396 nil
397 end
398 end
399
400 class LocalVanity < Q
401 Q.register(/\A~(.+)\Z/, &method(:new))
402
403 def iris_query
404 { localVanity: @q }
405 end
406
407 def sql_query
408 [
409 "SELECT * FROM tel_inventory " \
410 "WHERE available_after < LOCALTIMESTAMP AND tel LIKE ?",
411 "%#{q_digits}%"
412 ]
413 end
414
415 def q_digits
416 @q
417 .gsub(/[ABC]/i, "2")
418 .gsub(/[DEF]/i, "3")
419 .gsub(/[GHI]/i, "4")
420 .gsub(/[JKL]/i, "5")
421 .gsub(/[MNO]/i, "6")
422 .gsub(/[PQRS]/i, "7")
423 .gsub(/[TUV]/i, "8")
424 .gsub(/[WXYZ]/i, "9")
425 end
426 end
427
428 class State
429 Q.register(/\A[a-zA-Z]{2}\Z/, &method(:new))
430
431 STATE_MAP = {
432 "QC" => "PQ"
433 }.freeze
434
435 def initialize(state, **)
436 @state = STATE_MAP.fetch(state.upcase, state.upcase)
437 end
438
439 def fallback
440 []
441 end
442
443 def iris_query
444 { state: @state }
445 end
446
447 def sql_query
448 [
449 "SELECT * FROM tel_inventory " \
450 "WHERE available_after < LOCALTIMESTAMP AND region = ?",
451 @state
452 ]
453 end
454
455 def to_s
456 @state
457 end
458 end
459
460 class CityState
461 Q.register(/\A([^,]+)\s*,\s*([a-zA-Z]{2})\Z/, &method(:new))
462
463 CITY_MAP = {
464 "ajax" => "Ajax-Pickering",
465 "kitchener" => "Kitchener-Waterloo",
466 "new york" => "New York City",
467 "pickering" => "Ajax-Pickering",
468 "sault ste marie" => "sault sainte marie",
469 "sault ste. marie" => "sault sainte marie",
470 "south durham" => "Durham",
471 "township of langley" => "Langley",
472 "waterloo" => "Kitchener-Waterloo",
473 "west durham" => "Durham"
474 }.freeze
475
476 def initialize(city, state, db: DB, memcache: MEMCACHE)
477 @city = CITY_MAP.fetch(city.downcase, city)
478 @state = State.new(state)
479 @db = db
480 @memcache = memcache
481 end
482
483 def fallback
484 LazyObject.new do
485 AreaCodeRepo.new(
486 db: @db,
487 geo_code_repo: GeoCodeRepo.new(memcache: @memcache)
488 ).find(to_s).sync.map { |area_code|
489 AreaCode.new(area_code)
490 }
491 end
492 end
493
494 def iris_query
495 @state.iris_query.merge(city: @city)
496 end
497
498 def sql_query
499 [
500 "SELECT * FROM tel_inventory " \
501 "WHERE available_after < LOCALTIMESTAMP " \
502 "AND region = ? AND locality = ?",
503 @state.to_s, @city
504 ]
505 end
506
507 def to_s
508 "#{@city}, #{@state}"
509 end
510 end
511 end
512 end
513end