feat(store): set up a preliminary implementation for newest posts

database/src/main/kotlin/dev/msfjarvis/claw/database/injection/DatabaseModule.kt

@@ -15,6 +15,7 @@ import com.squareup.anvil.annotations.ContributesTo
 import dagger.Module
 import dagger.Provides
 import dev.msfjarvis.claw.database.LobstersDatabase
+import dev.msfjarvis.claw.database.local.CachedNewestPost
 import dev.msfjarvis.claw.database.local.PostComments
 import dev.msfjarvis.claw.database.local.SavedPost
 import dev.msfjarvis.claw.database.model.CSVAdapter
@@ -37,8 +38,10 @@ object DatabaseModule {
       )
     return LobstersDatabase(
       driver = driver,
-      PostCommentsAdapter = PostComments.Adapter(CSVAdapter()),
-      SavedPostAdapter = SavedPost.Adapter(IntColumnAdapter, CSVAdapter()),
+      PostCommentsAdapter = PostComments.Adapter(CSVAdapter),
+      SavedPostAdapter = SavedPost.Adapter(IntColumnAdapter, CSVAdapter),
+      CachedNewestPostAdapter =
+        CachedNewestPost.Adapter(IntColumnAdapter, IntColumnAdapter, CSVAdapter),
     )
   }
 }

database/src/main/kotlin/dev/msfjarvis/claw/database/model/CSVAdapter.kt

@@ -8,7 +8,9 @@ package dev.msfjarvis.claw.database.model
 
 import app.cash.sqldelight.ColumnAdapter
 
-class CSVAdapter : ColumnAdapter<List<String>, String> {
+object CSVAdapter : ColumnAdapter<List<String>, String> {
+  private const val SEPARATOR = ","
+
   override fun decode(databaseValue: String): List<String> {
     return databaseValue.split(SEPARATOR)
   }
@@ -16,8 +18,4 @@ class CSVAdapter : ColumnAdapter<List<String>, String> {
   override fun encode(value: List<String>): String {
     return value.joinToString(SEPARATOR)
   }
-
-  private companion object {
-    private const val SEPARATOR = ","
-  }
 }

database/src/main/sqldelight/dev/msfjarvis/claw/database/local/CachedNewestPost.sq

@@ -0,0 +1,31 @@
+import kotlin.Int;
+import kotlin.String;
+import kotlin.collections.List;
+
+CREATE TABLE IF NOT EXISTS CachedNewestPost(
+  pageNumber INTEGER AS Int,
+  shortId TEXT NOT NULL PRIMARY KEY,
+  title TEXT NOT NULL,
+  url TEXT NOT NULL,
+  description TEXT NOT NULL,
+  commentCount INTEGER AS Int,
+  commentsUrl TEXT NOT NULL,
+  tags TEXT AS List<String> NOT NULL
+);
+
+insertPost:
+INSERT OR REPLACE
+INTO CachedNewestPost
+VALUES ?;
+
+getPage:
+SELECT *
+FROM CachedNewestPost
+WHERE pageNumber = ?;
+
+clearPage:
+DELETE FROM CachedNewestPost
+WHERE pageNumber = ?;
+
+deleteAll:
+DELETE FROM CachedNewestPost;

database/src/main/sqldelight/migrations/5.sqm

@@ -0,0 +1,14 @@
+import kotlin.Int;
+import kotlin.String;
+import kotlin.collections.List;
+
+CREATE TABLE IF NOT EXISTS CachedNewestPost(
+  pageNumber INTEGER AS Int,
+  shortId TEXT NOT NULL PRIMARY KEY,
+  title TEXT NOT NULL,
+  url TEXT NOT NULL,
+  description TEXT NOT NULL,
+  commentCount INTEGER AS Int,
+  commentsUrl TEXT NOT NULL,
+  tags TEXT AS List<String> NOT NULL
+);

database/src/test/kotlin/dev/msfjarvis/claw/database/local/PostCommentsQueriesTest.kt

@@ -25,8 +25,9 @@ class PostCommentsQueriesTest {
     val database =
       LobstersDatabase(
         driver,
-        PostComments.Adapter(CSVAdapter()),
-        SavedPost.Adapter(IntColumnAdapter, CSVAdapter()),
+        CachedNewestPost.Adapter(IntColumnAdapter, IntColumnAdapter, CSVAdapter),
+        PostComments.Adapter(CSVAdapter),
+        SavedPost.Adapter(IntColumnAdapter, CSVAdapter),
       )
     postQueries = database.postCommentsQueries
   }

database/src/test/kotlin/dev/msfjarvis/claw/database/local/SavedPostQueriesTest.kt

@@ -24,8 +24,9 @@ class SavedPostQueriesTest {
     val database =
       LobstersDatabase(
         driver,
-        PostComments.Adapter(CSVAdapter()),
-        SavedPost.Adapter(IntColumnAdapter, CSVAdapter()),
+        CachedNewestPost.Adapter(IntColumnAdapter, IntColumnAdapter, CSVAdapter),
+        PostComments.Adapter(CSVAdapter),
+        SavedPost.Adapter(IntColumnAdapter, CSVAdapter),
       )
     postQueries = database.savedPostQueries
   }