Separate core components in its own module

1 files changed, 92 insertions, 0 deletions

diff --git a/core/src/main/kotlin/ca/allanwang/kau/email/EmailBuilder.kt b/core/src/main/kotlin/ca/allanwang/kau/email/EmailBuilder.kt
new file mode 100644
index 0000000..b03a620
--- /dev/null
+++ b/core/src/main/kotlin/ca/allanwang/kau/email/EmailBuilder.kt
@@ -0,0 +1,92 @@
+package ca.allanwang.kau.email
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.net.Uri
+import android.os.Build
+import android.support.annotation.StringRes
+import android.util.DisplayMetrics
+import ca.allanwang.kau.R
+import ca.allanwang.kau.logging.KL
+import ca.allanwang.kau.utils.installerPackageName
+import ca.allanwang.kau.utils.isAppInstalled
+import ca.allanwang.kau.utils.string
+
+
+/**
+ * Created by Allan Wang on 2017-06-20.
+ */
+class EmailBuilder(val email: String, val subject: String) {
+    var message: String = "Write here."
+    var deviceDetails: Boolean = true
+    var appInfo: Boolean = true
+    var footer: String? = null
+    private val pairs: MutableMap<String, String> = mutableMapOf()
+    private val packages: MutableList<Package> = mutableListOf()
+
+    fun checkPackage(packageName: String, appName: String) = packages.add(Package(packageName, appName))
+
+    fun addItem(key: String, value: String) = pairs.put(key, value)
+
+    data class Package(val packageName: String, val appName: String)
+
+    fun execute(context: Context) {
+        val intent = Intent(Intent.ACTION_VIEW, Uri.parse("mailto:$email"))
+        intent.putExtra(Intent.EXTRA_SUBJECT, subject)
+        val emailBuilder = StringBuilder()
+        emailBuilder.append(message).append("\n\n")
+        if (deviceDetails) {
+            val deviceItems = mutableMapOf(
+                    "OS Version" to "${System.getProperty("os.version")} (${Build.VERSION.INCREMENTAL})",
+                    "OS API Level" to Build.DEVICE,
+                    "Manufacturer" to Build.MANUFACTURER,
+                    "Model (and Product)" to "${Build.MODEL} (${Build.PRODUCT})",
+                    "Package Installer" to (context.installerPackageName ?: "None")
+            )
+            if (context is Activity) {
+                val metric = DisplayMetrics()
+                context.windowManager.defaultDisplay.getMetrics(metric)
+                deviceItems.put("Screen Dimensions", "${metric.widthPixels} x ${metric.heightPixels}")
+            }
+            deviceItems.forEach { (k, v) -> emailBuilder.append("$k: $v\n") }
+        }
+        if (appInfo) {
+            try {
+                val appInfo = context.packageManager.getPackageInfo(context.packageName, 0)
+                emailBuilder.append("\nApp: ").append(context.packageName)
+                        .append("\nApp Version Name: ").append(appInfo.versionName)
+                        .append("\nApp Version Code: ").append(appInfo.versionCode).append("\n")
+            } catch (e: PackageManager.NameNotFoundException) {
+                KL.e("EmailBuilder packageInfo not found")
+            }
+        }
+
+        if (packages.isNotEmpty()) emailBuilder.append("\n")
+        packages.forEach {
+            if (context.isAppInstalled(it.packageName))
+                emailBuilder.append(String.format("\n%s is installed", it.appName))
+        }
+
+        if (pairs.isNotEmpty()) emailBuilder.append("\n")
+        pairs.forEach { (k, v) -> emailBuilder.append("$k: $v\n") }
+
+        if (footer != null)
+            emailBuilder.append("\n").append(footer)
+
+        intent.putExtra(Intent.EXTRA_TEXT, emailBuilder.toString())
+        context.startActivity(Intent.createChooser(intent, context.resources.getString(R.string.kau_send_via)))
+    }
+}
+
+fun Context.sendEmail(@StringRes emailId: Int, @StringRes subjectId: Int, builder: EmailBuilder.() -> Unit = {})
+        = sendEmail(string(emailId), string(subjectId), builder)
+
+
+fun Context.sendEmail(email: String, subject: String, builder: EmailBuilder.() -> Unit = {}) {
+    EmailBuilder(email, subject).apply {
+        builder()
+        execute(this@sendEmail)
+    }
+}
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