adds offline caching functionality

index.html

@@ -172,6 +172,11 @@ <h3>Additional Options</h3>
                     <label for="groupcheckbox">Group crypto elements under one button</label>
                 </div>
 
+                <div id="cacheToggle">
+                    <input id="cachecheckbox" type="checkbox">
+                    <label for="cachecheckbox">Cache results for offline viewing</label>
+                </div>
+
             </form>
 
             <br>

js/generator.js

@@ -78,7 +78,8 @@ function generateJSON(template, cb) {
             percent: userData.userPercentageModifer,
             output_type: userData.formatSelector,
             apiSelector: userData.apiSelector.dataset.apitype,
-            extraOptions: extraOptions
+            extraOptions: extraOptions,
+            offline_cache: userData.cacheBool
         };
 
         coin.BTTTriggerConfig.BTTTouchBarAppleScriptString = Mustache.render(template, data);

js/page.js

@@ -22,7 +22,8 @@ function getSelectedValues() {
         formatSelector: document.querySelector('input[name="variance-type"]:checked').dataset.variance,
         dateTimeSelector: document.getElementById('flatpicker-output'),
         dateTimeSelectorString: document.getElementById('flatpicker-output-string'),
-        userPercentageModifer: parseFloat(document.getElementById('user-percentage').value / 100)
+        userPercentageModifer: parseFloat(document.getElementById('user-percentage').value / 100),
+        cacheBool: document.getElementById('cachecheckbox').checked
     }
 }
 

templates/BTTSchema.js

@@ -62,6 +62,7 @@ function widget() {
             "BTTTouchBarButtonColor": "243.776725, 130.266312, 8.181293, 255.000000",
             "BTTTouchBarAlwaysShowButton": "0",
             "BTTTouchBarAppleScriptString": "**RESPONSE****OUTPUT****ERROR**",
+            "BTTTouchBarColorRegex" : "CACHED",
             "BTTTouchBarAlternateBackgroundColor": "109.650002, 109.650002, 109.650002, 255.000000",
             "BTTTouchBarScriptUpdateInterval": 60
         }

templates/crypto_price.py

@@ -10,9 +10,10 @@
 output_type = "{{output_type}}" if "{{output_type}}"[0] != "{" else  "no"
 api_type = "{{apiSelector}}" if "{{apiSelector}}"[0] != "{" else  "live"
 extraOptions = "{{{extraOptions}}}" if "{{{extraOptions}}}"[0] != "{" else  "&limit=1&aggregate=1&toTs=1514376000"
+offline_cache = "{{offline_cache}}" if "{{offline_cache}}"[0] != "{" else "false"
 
 try:
-    if (api_type == 'live'):
+    if (api_type == "live"):
 
         url = "https://min-api.cryptocompare.com/data/pricemultifull?fsyms={}&tsyms={}".format(coin_ticker, fiat_ticker)
 
@@ -40,23 +41,30 @@
             trend = "▼"
 
         if (output_type is "no"):
-            print(fiat_symbol + current)
+            output = fiat_symbol + current
         elif (output_type is "simple"):
-            print(fiat_symbol + current + " " + trend)
+            output = fiat_symbol + current + " " + trend
         elif (output_type is "mktcap"):
-            print(fiat_symbol + current + " (" + fiat_symbol + mktcap + ")")
+            output = fiat_symbol + current + " (" + fiat_symbol + mktcap + ")"
         elif (output_type is "absolute"):
-            print(fiat_symbol + current + " (L: " + fiat_symbol + low + " H: " + fiat_symbol + high + ")")
+            output = fiat_symbol + current + " (L: " + fiat_symbol + low + " H: " + fiat_symbol + high + ")"
         elif (output_type is "relative"):
-            print(fiat_symbol + current + " (L: -" + fiat_symbol + str(raw_current - raw_low) + " H: +" + fiat_symbol + str(raw_high - raw_current) + ")")
+            output = fiat_symbol + current + " (L: -" + fiat_symbol + str(raw_current - raw_low) + " H: +" + fiat_symbol + str(raw_high - raw_current) + ")"
         elif (output_type is "current-percentage"):
-            print(fiat_symbol + current + " (" + str(round (((raw_current - raw_opening) / raw_current) * 100)) + "%)")
+            output = fiat_symbol + current + " (" + str(round (((raw_current - raw_opening) / raw_current) * 100)) + "%)"
         elif (output_type is "range-percentage"):
-            print(fiat_symbol + current + " (L: -" + str(round (((raw_current - raw_low) / raw_current) * 100)) + "% H: +" + str(round (((raw_high - raw_current) / raw_current) * 100)) + "%)")
+            output = fiat_symbol + current + " (L: -" + str(round (((raw_current - raw_low) / raw_current) * 100)) + "% H: +" + str(round (((raw_high - raw_current) / raw_current) * 100)) + "%)"
         elif (output_type is "user-percentage"):
-            print(fiat_symbol + current + " (L: " + fiat_symbol + str(raw_current - (raw_current * mod_percent)) + " H: " + fiat_symbol + str(raw_current + (raw_current * mod_percent)) + ")")
+            output = fiat_symbol + current + " (L: " + fiat_symbol + str(raw_current - (raw_current * mod_percent)) + " H: " + fiat_symbol + str(raw_current + (raw_current * mod_percent)) + ")"
 
-    elif (api_type == 'historical'):
+        if (offline_cache is "true"):
+            tmp_file = open("/tmp/"+coin_ticker+"-"+fiat_ticker+"-"+output_type+".txt", "w")
+            tmp_file.write(output)
+            tmp_file.close()
+
+        print(output)
+
+    elif (api_type == "historical"):
         url = "https://min-api.cryptocompare.com/data/histohour?fsym={}&tsym={}" + extraOptions
         url = url.format(coin_ticker, fiat_ticker)
 
@@ -66,10 +74,20 @@
         raw_high = float(obj["Data"][1]["high"])
         high = num_format.format(raw_high)
 
-        print(fiat_symbol + high)
+        output = fiat_symbol + high
+
+        if (offline_cache is "true"):
+            tmp_file = open("/tmp/"+coin_ticker+"-"+fiat_ticker+"-"+output_type+".txt", "w")
+            tmp_file.write(output)
+            tmp_file.close() 
 
+        print(output)
 except urllib2.URLError, e:
-    print('Unable to get data from API: %s' % e)
+    try:
+        tmp_file = open("/tmp/"+coin_ticker+"-"+fiat_ticker+"-"+output_type+".txt", "r")
+        print 'CACHED ' + tmp_file.read() 
+    except IOError, e:
+        print('Unable to get data from API & no cache available')
 except ValueError, e:
     print('There was an error formatting the output: %s' % e)
 # Please submit any issues https://github.com/chrislennon/Crypto-Touchbar-App/issues with the above script