commit 64745479c6e6e0531ad2a97f461538f03b3f792d
Author: xigoi <blaa@null.net>
Date:   Fri Sep 4 11:32:45 2020 +0200

    Semi-working signin and timetable

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..dab652b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+*
+!*.*
+!/**/
+*.swp
+*.un~
+.netrwhist
+*.json
diff --git a/bakalari.nim b/bakalari.nim
new file mode 100644
index 0000000..f1ed59b
--- /dev/null
+++ b/bakalari.nim
@@ -0,0 +1,169 @@
+import httpcore, httpclient, json, strformat, tables, times, uri
+import elvis
+
+type
+  Bakalari* = ref object
+    website*: Uri
+    accessToken*: string
+    refreshToken*: string
+  Homework* = object
+    id*: string
+    subject*: string
+    teacher*: string
+    content*: string
+    startTime*: DateTime
+    endTime*: DateTime
+  Message* = object
+    title*: string
+    sender*: string
+    text*: string
+    sentTime*: DateTime
+  Hour* = ref object
+    number*: string
+    beginTime*: string
+    endTime*: string
+  Room* = ref object
+    name*: string
+    abbrev*: string
+  Subject* = ref object
+    name*: string
+    abbrev*: string
+  Teacher* = ref object
+    name*: string
+    abbrev*: string
+  Lesson* = object
+    hour*: Hour
+    room*: Room
+    subject*: Subject
+    teacher*: Teacher
+  Day* = object
+    lessons*: seq[Lesson]
+    dayOfWeek*: int
+    date*: DateTime
+  Timetable* = object
+    days*: seq[Day]
+
+const
+  iso8601 = initTimeFormat("yyyy-MM-dd'T'HH:mm:sszzz")
+
+proc newBakalari*(website: Uri, username: string, password: string): Bakalari =
+  new result
+  result.website = website
+  let
+    api = website / "api/login"
+    client = newHttpClient()
+    response = client.post($api, body = &"client_id=ANDR&grant_type=password&username={username}&password={password}")
+    root = response.body.parseJson
+  result.accessToken = root{"access_token"}.getStr
+  result.refreshToken = root{"refresh_token"}.getStr
+
+proc newBakalari*(website: Uri, refreshToken: string): Bakalari =
+  new result
+  result.website = website
+  let
+    api = website / "api/login"
+    client = newHttpClient()
+    response = client.post($api, body = &"client_id=ANDR&grant_type=refresh_token&refresh_token={refreshToken}")
+    root = response.body.parseJson
+  result.accessToken = root{"access_token"}.getStr
+  result.refreshToken = root{"refresh_token"}.getStr
+
+func accessToken*(bakalari: Bakalari): string =
+  bakalari.accessToken
+
+func refreshToken*(bakalari: Bakalari): string =
+  bakalari.refreshToken
+
+proc renewTokens(bakalari: Bakalari) =
+  let
+    api = bakalari.website / "api/login"
+    client = newHttpClient()
+    response = client.post($api, body = &"client_id=ANDR&grant_type=refresh_token&refresh_token={bakalari.refreshToken}")
+    body = response.body
+    root = body.parseJson
+  bakalari.accessToken = root{"access_token"}.getStr
+  bakalari.refreshToken = root{"refresh_token"}.getStr
+
+proc getEndpoint*(bakalari: Bakalari, endpoint: string): JsonNode =
+  let
+    api = bakalari.website / "api/3" / endpoint
+    client = newHttpClient(headers = newHttpHeaders {
+      "Authorization": "Bearer " & bakalari.accessToken,
+    })
+    response = client.get($api)
+    body = response.body
+  bakalari.renewTokens
+  result = body.parseJson
+
+proc postEndpoint*(bakalari: Bakalari, endpoint: string): JsonNode =
+  let
+    api = bakalari.website / "api/3" / endpoint
+    client = newHttpClient(headers = newHttpHeaders {
+      "Authorization": "Bearer " & bakalari.accessToken,
+    })
+    response = client.post($api)
+    body = response.body
+  bakalari.renewTokens
+  result = body.parseJson
+
+iterator homework*(bakalari: Bakalari): Homework =
+  let root = bakalari.getEndpoint("homeworks")
+  for node in root{"Homeworks"}.getElems:
+    yield Homework(
+      id: node{"ID"}.getStr,
+      subject: node{"Subject"}{"Name"}.getStr,
+      teacher: node{"Teacher"}.getStr,
+      content: node{"Content"}.getStr,
+      startTime: node{"DateStart"}.getStr.parse(iso8601),
+      endTime: node{"DateEnd"}.getStr.parse(iso8601),
+    )
+
+iterator messages*(bakalari: Bakalari): Message =
+  let root = bakalari.postEndpoint("komens/messages/received")
+  for node in root{"Messages"}.getElems:
+    yield Message(
+      title: node{"Title"}.getStr,
+      sender: node{"Sender"}{"Name"}.getStr,
+      text: node{"Text"}.getStr,
+      sentTime: node{"SentDate"}.getStr.parse(iso8601)
+    )
+
+proc timetable*(bakalari: Bakalari, permanent: bool): Timetable =
+  let root = bakalari.getEndpoint(permanent ? "timetable/permanent" ! "timetable/actual")
+  var hours: Table[int, Hour]
+  for hourNode in root{"Hours"}:
+    hours[hourNode{"Id"}.getInt] = Hour(
+      number: hourNode{"Caption"}.getStr,
+      beginTime: hourNode{"BeginTime"}.getStr,
+      endTime: hourNode{"EndTime"}.getStr,
+    )
+  var rooms: Table[string, Room]
+  for roomNode in root{"Rooms"}:
+    rooms[roomNode{"Id"}.getStr] = Room(
+      name: roomNode{"Name"}.getStr,
+      abbrev: roomNode{"Abbrev"}.getStr,
+    )
+  var subjects: Table[string, Subject]
+  for subjectNode in root{"Subjects"}:
+    subjects[subjectNode{"Id"}.getStr] = Subject(
+      name: subjectNode{"Name"}.getStr,
+      abbrev: subjectNode{"Abbrev"}.getStr,
+    )
+  var teachers: Table[string, Teacher]
+  for teacherNode in root{"Teachers"}:
+    teachers[teacherNode{"Id"}.getStr] = Teacher(
+      name: teacherNode{"Name"}.getStr,
+      abbrev: teacherNode{"Abbrev"}.getStr,
+    )
+  for dayNode in root{"Days"}:
+    var day: Day
+    for lessonNode in dayNode{"Atoms"}:
+      var lesson: Lesson
+      lesson.hour = hours[lessonNode{"HourId"}.getInt]
+      lesson.subject = subjects[lessonNode{"SubjectId"}.getStr]
+      lesson.teacher = teachers[lessonNode{"TeacherId"}.getStr]
+      lesson.room = rooms[lessonNode{"RoomId"}.getStr]
+      day.lessons.add lesson
+    day.dayOfWeek = dayNode{"DayOfWeek"}.getInt
+    day.date = dayNode{"Date"}.getStr.parse(iso8601)
+    result.days.add day
diff --git a/bk.nim b/bk.nim
new file mode 100644
index 0000000..05893af
--- /dev/null
+++ b/bk.nim
@@ -0,0 +1,62 @@
+import json, os, times, unicode, uri
+import cligen
+import bakalari
+
+type
+  Config = object
+    website: string
+    username: string
+    refreshToken: string
+
+const
+  defaultConfigFile = getConfigDir() / "bk.json"
+
+proc loadConfig(configFile = defaultConfigFile): Config =
+  defaultConfigFile.readFile.parseJson.to(Config)
+
+proc saveConfig(configFile = defaultConfigFile, config: Config) =
+  configFile.writeFile((%*config).pretty)
+
+proc signin(
+    website: string,
+    username: string,
+    password: string,
+    configFile = defaultConfigFile,
+  ) =
+  let
+    bakalari = newBakalari(website.parseUri, username, password)
+    config = Config(
+      website: website,
+      username: username,
+      refreshToken: bakalari.refreshToken,
+    )
+  configFile.saveConfig(config)
+
+proc rozvrh(
+  configFile = defaultConfigFile,
+  date = "",
+  oneDay = false,
+  permanent = false,
+  ) =
+  var config = configFile.loadConfig
+  let bakalari = newBakalari(config.website.parseUri, config.refreshToken)
+  config.refreshToken = bakalari.refreshToken
+  configFile.saveConfig(config)
+  let timetable = bakalari.timetable(permanent)
+  for day in timetable.days:
+    stdout.writeLine day.date.format("yyyyMMdd")
+    for lesson in day.lessons:
+      var line = ""
+      line &= lesson.hour.number
+      line &= ". "
+      line &= lesson.hour.beginTime.align(5, '0'.Rune)
+      line &= "-"
+      line &= lesson.hour.endTime.align(5, '0'.Rune)
+      line &= " "
+      line &= lesson.subject.abbrev.align(4)
+      line &= " "
+      line &= lesson.teacher.abbrev.align(4)
+      line &= " "
+      line &= lesson.room.abbrev.align(4)
+      stdout.writeLine line
+dispatchMulti([signin], [rozvrh])
diff --git a/bk.nims b/bk.nims
new file mode 100644
index 0000000..fc86e83
--- /dev/null
+++ b/bk.nims
@@ -0,0 +1 @@
+--define:ssl