Hi, I have a fairly long history of transactions in my ledger files and I would like to generate some pretty reports from this data. Think a one- page PDF (or HTML) file that opens with a sentence like "this month's revenue was X, expenses were Y, P% higher than average" and then has some charts about, say, distribution of expenses, historical data, comparison with forecast data.
I guess many people on this list have a similar thing running already,
so I would like to hear about recommendations with respect to
toolchain, libraries, etc. that you are using.
Currently I have an emacs org-mode file and use babel to get the ledger
output, as follows:
```
#+TITLE: Financial Report
#+PROPERTY: header-args :results output :exports results :cache true
#+PROPERTY: header-args+ :var F="-f all.ledger" :var MONTH="sep 2019"
#+BEGIN_HTML
<link rel="stylesheet" href="web/graphs.js" />
#+END_HTML
#+BEGIN_SRC sh
PARAMS="${F} --effective -p ${MONTH}"
ledger balance $PARAMS Expenses
#+END_SRC
```
Then the HTML export contains a <pre> block with the ledger output and
my script in `web/graphs.js` parses it and creates some charts.
It somehow works that way, but I don't think it's a very nice pipeline.
It's all very tightly coupled and seems fairly fragile, I need to parse
the output of ledger in JavaScript, the application logic to compute
averages etc. is also in JavaScript, there are a lot of components
involved (which makes it hard to debug), and still it is not simple to
generate a simple sentence like "this month's revenue was X".
If anyone has any suggestions or can point at tools suited for that
purpose, please let me know.
Thanks
Tobias
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