From 15fb813808be78f0f40513a43cfb4b4d6bd447cb Mon Sep 17 00:00:00 2001
From: Simon Laux <Simon-Laux@users.noreply.github.com>
Date: Sun, 2 Feb 2020 15:46:56 +0100
Subject: [PATCH] add provider db (#416)

---
 CHANGELOG.md                 |  3 ++
 index.d.ts                   |  5 +++
 lib/deltachat.js             | 12 +++++++
 src/module.c                 | 69 ++++++++++++++++++++++++++++++++++++
 src/napi-macros-extensions.h |  4 +++
 test/index.js                | 14 ++++++++
 6 files changed, 107 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 82cfcbad..8b551a65 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## [Unreleased][unreleased]
 
+### Added
+- Add provider db
+
 ## [1.0.0-beta.23.1] - 2019-01-29
 
 ### Changed
diff --git a/index.d.ts b/index.d.ts
index cd1e2f6f..263230bf 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -146,5 +146,10 @@ export class DeltaChat {
   getContacts(listFlags: number, queryStr: string): Array<Contact>;
   initiateKeyTransfer(cb: any): boolean;
   continueKeyTransfer(messageId: number, setupCode: string, cb: any): boolean;
+  getProviderFromEmail (email: string): {
+    before_login_hint: string,
+    overview_page: string,
+    status: number,
+  };
   static getSystemInfo(): string;
 }
\ No newline at end of file
diff --git a/lib/deltachat.js b/lib/deltachat.js
index 3b691079..6e41a509 100644
--- a/lib/deltachat.js
+++ b/lib/deltachat.js
@@ -463,6 +463,18 @@ class DeltaChat extends EventEmitter {
     )
   }
 
+  getProviderFromEmail (email) {
+    const provider = binding.dcn_provider_new_from_email(this.dcn_context, email)
+    if (!provider) {
+      return undefined
+    }
+    return {
+      before_login_hint: binding.dcn_provider_get_before_login_hint(provider),
+      overview_page: binding.dcn_provider_get_overview_page(provider),
+      status: binding.dcn_provider_get_status(provider)
+    }
+  }
+
   getSecurejoinQrCode (chatId) {
     debug(`getSecurejoinQrCode ${chatId}`)
     return binding.dcn_get_securejoin_qr(this.dcn_context, Number(chatId))
diff --git a/src/module.c b/src/module.c
index 47341218..714d30fa 100644
--- a/src/module.c
+++ b/src/module.c
@@ -267,6 +267,14 @@ static void finalize_msg(napi_env env, void* data, void* hint) {
   }
 }
 
+static void finalize_provider(napi_env env, void* data, void* hint) {
+  if (data) {
+    dc_provider_t* provider = (dc_provider_t*)data;
+    //TRACE("cleaning up provider");
+    dc_provider_unref(provider);
+  }
+}
+
 /**
  * Helpers.
  */
@@ -2620,6 +2628,59 @@ NAPI_METHOD(dcn_perform_imap_jobs) {
   NAPI_RETURN_UNDEFINED();
 }
 
+NAPI_METHOD(dcn_provider_new_from_email) {
+  NAPI_ARGV(2);
+  NAPI_DCN_CONTEXT();
+  NAPI_ARGV_UTF8_MALLOC(email, 1)
+
+  //TRACE("calling..");
+  napi_value result;
+  dc_provider_t* provider = dc_provider_new_from_email(dcn_context->dc_context, email);
+
+  if (provider == NULL) {
+    NAPI_STATUS_THROWS(napi_get_null(env, &result));
+  } else {
+    NAPI_STATUS_THROWS(napi_create_external(env, provider, finalize_provider,
+                                            NULL, &result));
+  }
+  //TRACE("done");
+
+  return result;
+}
+
+NAPI_METHOD(dcn_provider_get_overview_page) {
+  NAPI_ARGV(1);
+  NAPI_DC_PROVIDER();
+
+  //TRACE("calling..");
+  char* overview_page = dc_provider_get_overview_page(dc_provider);
+  //TRACE("result %s", overview_page);
+
+  NAPI_RETURN_AND_UNREF_STRING(overview_page);
+}
+
+NAPI_METHOD(dcn_provider_get_before_login_hint) {
+  NAPI_ARGV(1);
+  NAPI_DC_PROVIDER();
+
+  //TRACE("calling..");
+  char* before_login_hint = dc_provider_get_overview_page(dc_provider);
+  //TRACE("result %s", before_login_hint);
+
+  NAPI_RETURN_AND_UNREF_STRING(before_login_hint);
+}
+
+NAPI_METHOD(dcn_provider_get_status) {
+  NAPI_ARGV(1);
+  NAPI_DC_PROVIDER();
+
+  //TRACE("calling..");
+  int status = dc_provider_get_status(dc_provider);
+  //TRACE("result %s", status);
+
+  NAPI_RETURN_INT32(status)
+}
+
 NAPI_INIT() {
   /**
    * Main context
@@ -2805,6 +2866,14 @@ NAPI_INIT() {
   NAPI_EXPORT_FUNCTION(dcn_set_location);
   NAPI_EXPORT_FUNCTION(dcn_get_locations);
 
+  /**
+   * dc_provider
+   */
+  NAPI_EXPORT_FUNCTION(dcn_provider_new_from_email);
+  NAPI_EXPORT_FUNCTION(dcn_provider_get_overview_page);
+  NAPI_EXPORT_FUNCTION(dcn_provider_get_before_login_hint);
+  NAPI_EXPORT_FUNCTION(dcn_provider_get_status);
+
   /**
    * dc_array
    */
diff --git a/src/napi-macros-extensions.h b/src/napi-macros-extensions.h
index 4634aec6..b6e528ad 100644
--- a/src/napi-macros-extensions.h
+++ b/src/napi-macros-extensions.h
@@ -31,6 +31,10 @@
   dc_msg_t* dc_msg; \
   NAPI_STATUS_THROWS(napi_get_value_external(env, argv[0], (void**)&dc_msg));
 
+#define NAPI_DC_PROVIDER() \
+  dc_provider_t* dc_provider; \
+  NAPI_STATUS_THROWS(napi_get_value_external(env, argv[0], (void**)&dc_provider));
+
 #define NAPI_DC_ARRAY() \
   dc_array_t* dc_array; \
   NAPI_STATUS_THROWS(napi_get_value_external(env, argv[0], (void**)&dc_array));
diff --git a/test/index.js b/test/index.js
index 25d038ff..9cad1ed9 100644
--- a/test/index.js
+++ b/test/index.js
@@ -437,3 +437,17 @@ function dc (fn) {
     })
   }
 }
+
+test('dc.getProviderFromEmail("example@example.com")', t => {
+  const dc = new DeltaChat()
+  const provider = dc.getProviderFromEmail('example@example.com')
+
+  t.same(provider, {
+    before_login_hint: 'https://providers.delta.chat/example-com',
+    overview_page: 'https://providers.delta.chat/example-com',
+    status: 3
+  })
+
+  dc.close()
+  t.end()
+})