Add some ideas and TODOs

diff --git a/README.md b/README.md
index 601bf4c..0841757 100644 (file)
--- a/README.md
+++ b/README.md
@@ -168,6 +168,12 @@ controller, which are in turn actualized as desktop notifications by the
 TODO
 ----
 
+- tests (design is starting to take shape, so it is time)
+- show how many Debian package updates are available
+- show how many Debian package security-updates are available
+- monitor disk usage rate of change and alert if suspiciously fast
+- bring back CPU usage monitor
+- actual METAR parser, to replace the flaky `metar` program
 - status bar templating language
 - retry/cache for sensors fetching flaky remote resources (such as weather)
 - throttling of broken sensors (constantly returns errors)
@@ -192,3 +198,83 @@ Redesign notes
   until sensor execution is complete - this will allow us to reconfigure
   intervals at runtime (which seems like a better idea than the above in-memory
   DB one).
+
+Ideas
+-----
+
+- store data with rrdtool
+- report detailed status upon request (to a terminal)
+    - use color to indicate age of data
+- monitor tracking numbers (17track should be easiest to get started with)
+- monitor stock prices
+- monitor some item price(s) at some store(s) (Amazon, etc.)
+- monitor eBay auctions (https://en.wikipedia.org/wiki/EBay_API)
+- monitor PayPal (https://www.programmableweb.com/api/paypal)
+- monitor bank account balance and transactions
+    - https://communities.usaa.com/t5/Banking/Banking-via-API-Root/m-p/180789/highlight/true#M50758
+    - https://plaid.com/
+    - https://plaid.com/docs/api/
+    - https://plaid.com/docs/api/#institution-overview
+    - https://github.com/plaid
+    - https://www.bignerdranch.com/blog/online-banking-apis/
+- monitor/log road/traffic conditions
+    - travel times for some route over a course of time
+    - https://msdn.microsoft.com/en-us/library/hh441725
+    - https://cloud.google.com/maps-platform/
+    - https://cloud.google.com/maps-platform/routes/
+    - https://developer.mapquest.com/documentation/traffic-api/
+    - https://developer.here.com/api-explorer/rest/traffic/traffic-flow-bounding-box
+- monitor news sources for patterns/substrings
+    - http://developer.nytimes.com/
+    - https://news.ycombinator.com/
+    - https://lobste.rs/
+    - https://www.undeadly.org/
+    - http://openbsdnow.org/
+    - https://lwn.net/
+- monitor a git repository
+    - General
+        - total branches
+        - age of last change per branch
+        - change set sizes
+    - GitHub
+        - pull requests
+        - issues
+- monitor CI
+    - Travis
+    - Jenkins
+- pull/push data from/to other monitoring systems (Nagios, Graphite, etc.)
+- monitor file/directory age (can be used for email and other messaging systems)
+- monitor mailboxes for particular patterns/substrings
+- monitor IRC server(s)/channel(s) for particular patterns/substrings (use `ii`)
+- monitor iptables log
+    - auto-(un)block upon some threshold of violations
+- monitor changes in an arbitrary web resource
+    - deletions
+    - insertions
+    - delta = insertions - deletions
+- monitor/log LAN/WAN configurations (address, router, subnet)
+- monitor/log geolocation based on WAN IP address
+- correlate iptables violations with network/geolocation
+- monitor vulnerability databases
+    - https://nvd.nist.gov/
+    - https://vuldb.com/
+    - http://cve.mitre.org/
+- monitor processes
+    - zombies
+    - CPU hogs
+    - memory hogs
+    - memory leaks (if some process consistently grows)
+- browse https://www.programmableweb.com/ for some more ideas
+- GC trick: instead of actually doing GC, do a dummy run of building a status
+  bar at `BEGIN`, to fill-in the atimes for keys we need, then use the atimes
+  keys to build a regular expression to accept messages only from keys we
+  actually use
+
+Many of the above will undoubtedly need non-standard-system dependencies
+(languages, libraries, etc.), in which case - would they be better off as
+separate projects/repos?
+
+With all these ideas, it is starting to sound very noisy, but no worries - to
+quickly and temporarily shut everything up - just kill `dunst` and or toggle
+the status bar (`Alt` + `B` in `dwm`). For a permanent change - just don't
+turn-on the unwanted monitors/sensors.