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feat: Fetch calendar events from api

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This commit is contained in:
Peter Vacho 2024-12-30 02:37:04 +01:00
parent 82b3614920
commit b3c386a9dc
Signed by: school
GPG key ID: 8CFC3837052871B4
4 changed files with 137 additions and 25 deletions
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112
app/src/main/java/com/p_vacho/neat_calendar/activities/CalendarActivity.kt
View file

@ -1,5 +1,6 @@
package com.p_vacho.neat_calendar.activities
import android.content.Intent
import android.os.Bundle
import android.widget.ImageButton
import android.widget.TextView
@ -9,19 +10,28 @@ import androidx.core.view.ViewCompat
import androidx.core.view.WindowInsetsCompat
import androidx.recyclerview.widget.GridLayoutManager
import androidx.recyclerview.widget.RecyclerView
import androidx.lifecycle.lifecycleScope
import com.p_vacho.neat_calendar.MyApplication
import com.p_vacho.neat_calendar.R
import com.p_vacho.neat_calendar.adapters.CalendarAdapter
import com.p_vacho.neat_calendar.api.RetrofitClient
import com.p_vacho.neat_calendar.api.models.EventResponse
import com.p_vacho.neat_calendar.models.CalendarDay
import kotlinx.coroutines.launch
import java.time.ZoneOffset
import java.time.YearMonth
import java.time.format.TextStyle
import java.util.Locale
class CalendarActivity : AppCompatActivity() {
private lateinit var tvMonthYear: TextView
private lateinit var rvCalendar: RecyclerView
private lateinit var btnPreviousMonth: ImageButton
private lateinit var btnNextMonth: ImageButton
private val tokenManager by lazy { (application as MyApplication).tokenManager }
private var currentYearMonth: YearMonth = YearMonth.now()
override fun onCreate(savedInstanceState: Bundle?) {
@ -52,36 +62,88 @@ class CalendarActivity : AppCompatActivity() {
}
}
private fun setCalendarForMonth(yearMonth: YearMonth) {
val firstDayOfMonth = yearMonth.atDay(1)
val daysInMonth = yearMonth.lengthOfMonth()
/**
* Obtain all of the events that occur for each day in the given month from the API.
*
* The returned structure is a hashmap with int keys, being the day numbers in the month.
* If an event spans multiple days, it will be added for each of those days.
*/
private suspend fun fetchEventsForMonth(yearMonth: YearMonth): Map<Int, List<EventResponse>> {
val startFrom = yearMonth.atDay(1).atStartOfDay().atOffset(ZoneOffset.UTC)
val endTo = yearMonth.atEndOfMonth().atTime(23, 59, 59).atOffset(ZoneOffset.UTC)
// TODO: Replace with an API call to obtain the events
val eventDays = setOf(3, 15, 20)
val userId = tokenManager.userId
// Get localized month name and year
val monthYearText = "${yearMonth.month.getDisplayName(TextStyle.FULL, Locale.getDefault())} ${yearMonth.year}"
tvMonthYear.text = monthYearText
// Calculate the amount of placeholder slots until the first day in the month
// (Our calendar starts from Monday, but not all months start on monday, so we need fillers)
val startOffset = firstDayOfMonth.dayOfWeek.ordinal // Gives 0 (Monday) to 6 (Sunday)
// Generate calendar days
val days = mutableListOf<CalendarDay>()
// Add padding for days of the previous month
for (i in 1..startOffset) {
days.add(CalendarDay(dayNumber = ""))
if (userId.isNullOrEmpty()) {
navigateToMainActivity()
return emptyMap()
}
// Add the actual days of the current month
for (i in 1..daysInMonth) {
days.add(CalendarDay(dayNumber = i.toString(), hasEvents = eventDays.contains(i)))
val events = RetrofitClient.eventsService.userEvents(
userId = userId,
startFrom = startFrom,
endTo = endTo
)
// Create a mapping of days to events
val eventsByDay = mutableMapOf<Int, MutableList<EventResponse>>()
for (event in events) {
val startDay = maxOf(event.start_time.dayOfMonth, 1)
val endDay = minOf(event.end_time.dayOfMonth, yearMonth.lengthOfMonth())
for (day in startDay..endDay) {
eventsByDay.computeIfAbsent(day) { mutableListOf() }.add(event)
}
}
// Set up RecyclerView
rvCalendar.layoutManager = GridLayoutManager(this, 7) // 7 columns for days of the week
rvCalendar.adapter = CalendarAdapter(days)
return eventsByDay
}
private fun setCalendarForMonth(yearMonth: YearMonth) {
lifecycleScope.launch {
val firstDayOfMonth = yearMonth.atDay(1)
val daysInMonth = yearMonth.lengthOfMonth()
val eventsByDay = fetchEventsForMonth(yearMonth)
// Get localized month name and year
val monthYearText = "${
yearMonth.month.getDisplayName(
TextStyle.FULL,
Locale.getDefault()
)
} ${yearMonth.year}"
tvMonthYear.text = monthYearText
// Calculate the amount of placeholder slots until the first day in the month
// (Our calendar starts from Monday, but not all months start on monday, so we need fillers)
val startOffset = firstDayOfMonth.dayOfWeek.ordinal // Gives 0 (Monday) to 6 (Sunday)
// Generate calendar days
val days = mutableListOf<CalendarDay>()
// Add padding for days of the previous month
for (i in 1..startOffset) {
days.add(CalendarDay(dayNumber = ""))
}
// Add the actual days of the current month
for (i in 1..daysInMonth) {
val eventsForDay = eventsByDay[i] ?: emptyList()
days.add(CalendarDay(dayNumber = i.toString(), hasEvents = eventsForDay.isNotEmpty())) }
// Set up RecyclerView
rvCalendar.layoutManager = GridLayoutManager(this@CalendarActivity, 7) // 7 columns for days of the week
rvCalendar.adapter = CalendarAdapter(days)
}
}
private fun navigateToMainActivity() {
val intent = Intent(this, MainActivity::class.java)
intent.flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_NEW_TASK
startActivity(intent)
finish() // Close the login screen
}
}

5
app/src/main/java/com/p_vacho/neat_calendar/api/RetrofitClient.kt
View file

@ -14,6 +14,7 @@ import retrofit2.HttpException
import java.io.IOException
import java.time.OffsetDateTime
import com.fatboyindustrial.gsonjavatime.OffsetDateTimeConverter
import com.p_vacho.neat_calendar.api.services.EventsService
object RetrofitClient {
private const val DEFAULT_BASE_URL = "http://10.0.2.2:8000"
@ -30,6 +31,10 @@ object RetrofitClient {
val generalService: GeneralService
get() = retrofitWithReachability!!.create(GeneralService::class.java)
val eventsService: EventsService
get() = retrofitWithReachability!!.create(EventsService::class.java)
fun initialize(context: Context) {
appContext = context
baseUrl = getBaseUrl()

16
app/src/main/java/com/p_vacho/neat_calendar/api/models/EventModels.kt Normal file
View file

@ -0,0 +1,16 @@
package com.p_vacho.neat_calendar.api.models
import java.time.OffsetDateTime
data class EventResponse(
val id: String,
val title: String,
val description: String,
val category_ids: List<String>,
val start_time: OffsetDateTime,
val end_time: OffsetDateTime,
val color: String, // Hex color (e.g., #ff0000)
val owner_user_id: String,
val attendee_ids: List<String>,
val created_at: OffsetDateTime
)

29
app/src/main/java/com/p_vacho/neat_calendar/api/services/EventsService.kt Normal file
View file

@ -0,0 +1,29 @@
package com.p_vacho.neat_calendar.api.services
import com.p_vacho.neat_calendar.api.models.EventResponse
import retrofit2.http.GET
import retrofit2.http.Path
import retrofit2.http.Query
import java.time.OffsetDateTime
interface EventsService {
@GET("events/{event_id}")
suspend fun getEvent(@Path("event_id") eventId: String): EventResponse
@GET("users/{user_id}/events")
suspend fun userEvents(
@Path("user_id") userId: String,
@Query("start_from") startFrom: OffsetDateTime? = null,
@Query("start_to") startTo: OffsetDateTime? = null,
@Query("end_from") endFrom: OffsetDateTime? = null,
@Query("end_to") endTo: OffsetDateTime? = null
): List<EventResponse>
@GET("users/{user_id}/events/invited")
suspend fun userEventsInvited(
@Path("user_id") userId: String,
@Query("start_from") startFrom: OffsetDateTime? = null,
@Query("start_to") startTo: OffsetDateTime? = null,
@Query("end_from") endFrom: OffsetDateTime? = null,
@Query("end_to") endTo: OffsetDateTime? = null
): List<EventResponse>}