Add file reading system

.gitignore

@@ -1,12 +1,7 @@
 *.iml
 .gradle
 /local.properties
-/.idea/caches
-/.idea/libraries
-/.idea/modules.xml
-/.idea/workspace.xml
-/.idea/navEditor.xml
-/.idea/assetWizardSettings.xml
+/.idea/*
 .DS_Store
 /build
 /captures

app/build.gradle

@@ -38,6 +38,11 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.4.1'
     implementation 'com.google.android.material:material:1.5.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
+    implementation 'com.fasterxml.jackson.core:jackson-databind:2.15.0'
+    implementation 'com.fasterxml.jackson:jackson-base:2.15.0'
+    implementation 'com.fasterxml.jackson:jackson-datatype-json-org:1.8.0'
+    implementation 'com.fasterxml.jackson.module:jackson-module-kotlin:2.15.0'
+    implementation 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.15.0'
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'

app/src/main/java/com/example/myapplication/MainActivity.kt

@@ -7,5 +7,6 @@ class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
+        FileReader.saveFile()
     }
 }

app/src/main/java/com/example/myapplication/Exp.kt → app/src/main/java/com/example/myapplication/data/Exp.kt

@@ -1,4 +1,4 @@
-package com.example.myapplication
+package com.example.myapplication.data
 
 data class Exp (
     val expType: Int, // 0 is mat cost, 1 is allowable expense

app/src/main/java/com/example/myapplication/Job.kt → app/src/main/java/com/example/myapplication/data/Job.kt

@@ -1,9 +1,9 @@
-package com.example.myapplication
+package com.example.myapplication.data
 
-class Job(
+data class Job(
     val jobType: String,
     var jobName: String,
-) {}
+)
 
 
 

app/src/main/java/com/example/myapplication/Rev.kt → app/src/main/java/com/example/myapplication/data/Rev.kt

@@ -1,4 +1,4 @@
-package com.example.myapplication
+package com.example.myapplication.data
 
 data class Rev (
     val revType: Int, // 0 is revenue, 1 is govt grant/incentive/etc

app/src/main/java/com/example/myapplication/TaxProfile.kt → app/src/main/java/com/example/myapplication/data/TaxProfile.kt

@@ -1,4 +1,6 @@
-package com.example.myapplication
+package com.example.myapplication.data
+
+import com.fasterxml.jackson.annotation.JsonFormat
 
 class TaxProfile(
     private val jobs: List<Job>,

app/src/main/java/com/example/myapplication/storage/FileReader.kt

@@ -0,0 +1,22 @@
+package com.example.myapplication.storage
+import com.example.myapplication.data.TaxProfile
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import java.io.File
+
+class FileReader {
+    companion object {
+        private val mapper = jacksonObjectMapper()
+
+        fun readFile(filename: String): TaxProfile {
+            val json: String = File(filename).readText()
+            return mapper.readValue<TaxProfile>(json)
+        }
+
+        fun saveFile(profile: TaxProfile) {
+            val filename = profile.fy.toString() + ".json"
+            val json: String = mapper.writeValueAsString(profile)
+            File(filename).writeBytes(json.toByteArray())
+        }
+    }
+}