Inital commit

apiHandler/ttncomms/db_table_config.sql

@@ -0,0 +1,2 @@
+DROP TABLE IF EXISTS `ttncomms`
+CREATE TABLE IF NOT EXISTS `ttncomms` ( `id` BIGINT unsigned NOT NULL AUTO_INCREMENT, `name` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL, `description` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL, `source_id` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL, `loc` POINT NOT NULL, `protocol_id` SMALLINT unsigned NOT NULL, `link` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL, UNIQUE (id));

apiHandler/ttncomms/db_table_config.sql.template

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+DROP TABLE IF EXISTS `ttncomms`
+#NL
+CREATE TABLE IF NOT EXISTS `ttncomms` (
+	`id` BIGINT unsigned NOT NULL AUTO_INCREMENT,
+	`name` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
+	`description` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
+	`source_id` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
+	`loc` POINT NOT NULL,
+	`protocol_id` SMALLINT unsigned NOT NULL,
+	`link` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
+	UNIQUE (id)
+);
+#NL

apiHandler/ttncomms/main.js

@@ -0,0 +1,165 @@
+const fs = require("fs");
+const bent = require('bent')
+const tools = require("../../functions");
+
+let con = undefined;
+
+function initialize(connection) {
+  con = connection;
+  const array = fs
+    .readFileSync("./apiHandler/ttncomms/db_table_config.sql")
+    .toString()
+    .split("\n");
+
+  for (i in array) {
+    con.query(array[i], function (err, result) {
+      if (err) throw err;
+      console.log("Table created for ttncomms");
+    });
+  }
+  const ttnCommUrl =
+    "https://www.thethingsnetwork.org/community.json";
+  const mysqlQuery =
+    "INSERT INTO ttncomms (name, description, source_id, loc, protocol_id, link) VALUES (?, ?, ?, POINT(?, ?), ?, ?)";
+  const res = bent(ttnCommUrl, 'GET', 'json', 200);
+
+  res().then(function(body){
+    console.log("[TheThingsnetwork Communities] Request done");
+    for (let c = 0; c < body.length; c++) {
+      const elm = body[c];
+      if (elm.lat != null && elm.lon != null) {
+        con.query(
+          mysqlQuery,
+          [
+            "TTN Community " + elm.title,
+            "",
+            getModuleMeta().exactName,
+            elm.lat,
+            elm.lon,
+            0,
+            "https://www.thethingsnetwork.org" + elm.path,
+          ],
+          function (err, result) {
+            if (err) {
+              throw err;
+            }
+          }
+        );
+      }
+    }
+    console.log("[TheThingsnetwork Communities] Insert into Database done!");
+  }, function(err){
+    console.warn("[" + getModuleMeta().title + "] Was unable to resolve request with error: " + err)
+  });
+}
+
+function queryData(boundNorthEastLatLng, boundSouthWestLatLng, minimal) {
+  // Create a new promise to return, DBs are slow.
+  return new Promise(function (resolve, reject) {
+    // The Promise constructor should catch any errors thrown on
+    // this tick. Alternately, try/catch and reject(err) on catch.
+    let elementsToQuery = "*";
+    if (minimal) {
+      elementsToQuery = "id,loc,source_id";
+    }
+    // This is taken from https://stackoverflow.com/questions/21208697/select-all-geospatial-points-inside-a-bounding-box
+    const sqlQuery = " \
+          SELECT " + elementsToQuery + " \
+  FROM airspy \
+ WHERE MBRContains( \
+        GeomFromText( 'LINESTRING(? ?,? ?)' ), \
+        loc)";
+
+    con.query(sqlQuery, [boundNorthEastLatLng.lat, boundNorthEastLatLng.lng, boundSouthWestLatLng.lat, boundSouthWestLatLng.lng], function (err, rows, fields) {
+      // Call reject on error states,
+      // call resolve with results
+      if (err) {
+        return reject(err);
+      }
+
+      const results = [];
+      for (let e = 0; e < rows.length; e++) {
+        const currentRow = rows[e];
+        const element = {
+          type: "general-poi",
+          source: "ttncomms",
+          titel: currentRow.name,
+          description: "This is a TheThingsnetwork Comunity. URL: " + currentRow.link,
+          url: currentRow.link,
+          uid: "ttncomms_" + currentRow.id,
+          location: currentRow.loc,
+        };
+        if (minimal) {
+          const stripableElements = ["title", "description", "url", "type"];
+          for (h in stripableElements) {
+            delete element[stripableElements[h]];
+          }
+        }
+        results.push(element);
+      }
+      resolve(results);
+    });
+  });
+}
+
+function queryItem(uid){
+  const uidParts = uid.split("_");
+  console.log("[ttncomms] Query item with uid: " + uid + " using id: " + parseInt(uidParts[1]));
+
+  const sqlQuery = "SELECT * FROM " + getModuleMeta().exactName + " WHERE id=?"
+  return new Promise(function (resolve, reject) {
+  con.query(sqlQuery, [parseInt(uidParts[1])], function (err, rows, fields) {
+    if (err) {
+      return reject(err);
+    }
+    console.log("[ttncomms] Query done, result: " + rows);
+    let results = [];
+    if(rows.length > 0){
+      
+      for (let e = 0; e < rows.length; e++) {
+        const currentRow = rows[e];
+        const element = {
+          type: "general-poi",
+          source: "ttncomms",
+          titel: currentRow.name,
+          description: "This is a TheThingsnetwork Comunity. URL: " + currentRow.link,
+          url: currentRow.link,
+          uid: "ttncomms_" + currentRow.id,
+          location: {
+            lat: currentRow.loc_lat,
+            lng: currentRow.loc_lng,
+          },
+        };
+        results.push(element);
+      }
+
+    }/*else{
+      results = [{
+        type: "general-poi",
+        source: "ttncomms",
+        titel: "Invalid",
+        description: "This is broken. Something is broken.",
+        url: "INVALID",
+        uid: uid,
+        location: {
+          lat: 0,
+          lng: 0,
+        },
+      }];
+    }*/
+    
+    resolve(results)
+  });
+});
+}
+
+function getModuleMeta() {
+  return {
+    title: "TheThingsnetwork Communities",
+    exactName: "ttncomms",
+    country: ["*"],
+    limited: false,
+  };
+}
+
+module.exports = { initialize, queryData, getModuleMeta, queryItem };