This is a set of scripts for analyzing trading history on the Bitshares DEX and thus for all exchanges running on the same software, e.g. (RuDEX.

Supported inventory accounting methods:

• FIFO (first-in/first-out)
• LIFO (last-in/first-out)
• LPFO (lowest-price/first-out)

Note: this is a beta software. Feel free to report bugs.

• Blockchain fees are currently not taken into account (market fees are correctly counted). Blockchain fees are fees charged by the blockchain itself, like transfer fee, fee for creating limit order etc.
• Analyzer is not intended to generate tax reports, it's main purpose is to evaluate strategy performance. Origianlly ccgains library requires historic data to estimate profits for trades not involving BASE currency. For example, your base currency is USD, you bought BTC and than trading BTS/BTC pair. Such trades will not show any profits. Imagine finally you got more amount of BTC than initially and then you sold BTC for USD. This is where finally you will see the profits.
• Another ccgains assumption is that if you deposited some quote currency and sold it for base currency, all obtained amount will be considered as a profit. Because we primarily interesting in evaluating strategy performance, we considering profit as a result of buy+sell only. So such deposited and then sold currency will be counted for 0 profit.

1. Make sure you have installed required packages: apt-get install gcc make libssl-dev
2. Install poetry
3. Run poetry install to install the dependencies
4. Copy common.yml.example to common.yml and change variables according to your needs
5. Now you're ready to run scripts:

poetry shell
./script.py
exit

Use ./download_history.py account_name to get transfers and trading history. Export format is generic ccGains format. After running this script you'll get csv files with exported history.

Features:

• History obtained from public elasticsearch wrapper node
• Trading history aggregated by price, e.g. if you had single order for example of buying 1000 BTS at 0.10 USD/BTS and it was filled in small chunks of BTS, this feature will aggregate all these trades into single trade. Use '--no-aggregate' to disable
• The script can continue previously exported data from the previous point, e.g. download fresh history and append it to the existing files
• Fixed-point math is used to maintain strict precision in records

Use ./analyzer.py base_currency account_name to analyze history. After running you'll get reports in pdf format and status-xxx.json file. Status file will be used as cache later when you'll need to analyze fresh data.

Features:

• --mode flag let you specify accounting mode you wish to use (FIFO/LIFO/LPFO)
• --precision flag is for defining base currency precision in reports. By default, precision is set to handle fiat currencies, so precision is 2 (numbers in 0.00 format). If you need to analyze BTC:XXX markets, use --precision 8
• --year option let you limit reporting year. This is obvious, no need to generate full report each time while you already have a reports for previous years.

The package is also provides a helper script to get a high-level overview of all transfers and trades across single or multiple accounts. It shows in easy to use format all deposits and withrawals, and all trades accumulated into a single entry. For example, you've bought 1 BTC in 100 transactions with different prices across one year. This script will consolidate all of them into a single entry. Also, it allows to limit a time range for analisys by --start and --end options.

Example output:

./bitshares_tradehistory_analyzer/cumulative_analyzer_cli.py transfers-id-b0t1.csv trades-id-b0t1.csv
Asset transfer stats:
               Asset    Deposited    Withdrawn         Delta   Last Transfer Timestamp
0                CNY    3005.6267     317.8022     2687.8245 2020-02-01 10:26:45+00:00
1    OPTIONS.J19CALL         0.01            0          0.01 2019-07-01 20:44:12+00:00
2                BTS   2842.38061  16992.77614  -14150.39553 2020-09-11 04:41:18+00:00
3   OPTIONS.19NO025C         0.01            0          0.01 2019-10-25 02:51:12+00:00
4            DIGITAL          1.0            0           1.0 2019-10-26 11:42:24+00:00
5      ECURREX.YMRUB       1580.1     10708.83      -9128.73 2020-07-10 06:43:12+00:00
6              RUBLE  12800.00002       6100.7    6699.30002 2020-03-03 04:54:21+00:00
7          RUDEX.BTC   0.00378297            0    0.00378297 2020-04-01 12:25:51+00:00
8   OPTIONS.21JA1USD         0.01            0          0.01 2020-04-05 18:26:18+00:00
9             MVCOIN        0.001            0         0.001 2020-05-14 02:01:21+00:00
10  OPTIONS.20SE1BTC         0.01            0          0.01 2020-05-19 18:41:27+00:00
Trading stats:
      Spent Asset  Spent Amount Acquired Asset Acquired Amount      Last Trade Timestamp
0             CNY    53067.1083            BTS    136677.78457 2020-02-01 10:17:09+00:00
1             BTS  129199.10876            CNY      50379.7836 2020-02-01 10:25:09+00:00
2   ECURREX.YMRUB      14749.91          RUBLE     14749.32009 2020-09-08 22:00:54+00:00
3           RUBLE    5223.69820            BTS      3641.97014 2020-09-11 03:56:57+00:00
4           RUBLE   16224.92190  ECURREX.YMRUB        16388.81 2020-03-10 12:55:18+00:00
5             BTS     599.99984      RUDEX.BTC      0.00157049 2020-04-05 16:54:30+00:00
6       RUDEX.BTC    0.00535346            BTS      2136.58400 2020-04-11 15:21:39+00:00
7   ECURREX.YMRUB       2904.08            BTS      2100.93268 2020-06-17 14:24:24+00:00
8             BTS    1172.68463     RUDEX.USDT       20.665472 2020-04-18 13:26:30+00:00
9      RUDEX.USDT     20.665472            BTS      1222.80901 2020-04-20 07:00:42+00:00
10            BTS     611.65091  ECURREX.YMRUB         1945.05 2020-09-05 06:02:57+00:00
Trading delta stats:
     Spent Asset Spent Amount Acquired Asset Acquired Amount         Price     Inverted Price      Last Trade Timestamp
0            CNY    2687.3247            BTS      7478.67581  0.3593316208       2.7829446177 2020-02-01 10:25:09+00:00
1          RUBLE   1475.60181  ECURREX.YMRUB         1638.90  0.9003611020       1.1106654850 2020-09-08 22:00:54+00:00
2          RUBLE   5223.69820            BTS      3641.97014  1.4343056091       0.6972014846 2020-09-11 03:56:57+00:00
3      RUDEX.BTC   0.00378297            BTS      1536.58416  0.0000024619  406184.6009881125 2020-04-11 15:21:39+00:00
4  ECURREX.YMRUB       959.03            BTS      1489.28177  0.6439547031       1.5529042574 2020-09-05 06:02:57+00:00
5     RUDEX.USDT     0.000000            BTS        50.12438  0.0000000000           Infinity 2020-04-20 07:00:42+00:00

If you have any issues, please open a github issue (and maybe search for similar open/closed issues).