A simple commandline utility to get the current PSI in Singapore, using NEA's API.

I use it to display the current PSI in xmobar.

At minimum, haze -k <API_KEY> will print the reported 3-hour moving average PSI for all of Singapore. You can change the region using -r, and calculate the current value using -c.

Here's the output of haze -h:

haze, gets the latest PSI using the NEA API.
Prints the 3-hour average by default.
Usage: haze [OPTIONS]

OPTIONS:
  -k --api-key=KEY   Use this API key.
  -r --region=REGION The region to report. One of: NRS rCE rEA rNO rSO rWE 
  -c --calculated    Calculate from first principles instead of using the 3-hour average.
  -h --help          Print this and exit.

libcurl is an external dependency. Your favourite package manager will have some flavour of it. The package libcurl4-openssl-dev might help.

Before compiling, edit config.cpp to set the default API key if you do not want to pass one each time you run the program. The first time you run make, some dependencies will be downloaded automatically.

Targets:

• make, make all builds haze,
• make test builds and runs tests, and --
• make install builds and copies the built binary to /usr/local/bin/.