# Changelog
## 0.10.0 (2023-06-07)
* first interactive notebook - Livebook support
* provide an archiving Livebook to initiate archiving jobs
* playcounts heatmap and table for visualising archiving progress
## 0.9.3 (2023-06-02)
* refactor: FileArchive - raw Lastfm scrobbles JSON format and better logging
* default runtime configuration to better support Livebook usage
## 0.9.2 (2023-05-24)
* `info/0` returns total play count and first date of scrobble for default user
* update Lastfm client to use Livebook system env vars (`LB_LFM_USER` and `LB_LFM_API_KEY`) along with config values
* rename modules and tests in idiomatic namespaces
* bump dependencies, Elixir / Erlang versions
* Github Actions CI
## 0.9.1 (2021-05-05)
* `sync/2` handles request errors from Last.fm API
* caches errors during sync so that subsequent syncs or API requests can be made to archive the missing scrobbles
* do not cache sync results of today's scrobbles as it's a always partial sync
## 0.9.0 (2021-04-14)
* Create an `Archive` behaviour with `FileArchive` implementation
* Extract and store scrobbles in daily chunks
* Extensive refactoring: simpler LastfmArchive functions core, deprecate `archive` functions
* Rewrite tests with mocks, eliminate file writes during tests
* Implement a GenServer simple tick-based (auto) cache memoization to prevent repetitive API calls to Last.fm
## 0.8.0 (2021-01-04)
* Update Elixir/Erlang versions and dependencies
* Replace HTTP client (HTTPoison) with Erlang's built-in httpc client
* Replace Poison with Jason for JSON decoding/encoding
* Apply mix formatting to the entire codebase
* Refactor and abstract LastfmArchive.Extract functions into a new module based on `Lastfm.Client` behaviour
* Implement explicit behaviour and contract-based unit testing (Hammox/Mox)
* Refactor and enable concurrent testing
## 0.7.2 (2019-02-25)
* Fix the issue of Last.fm changing the date/count data type in JSON back and forth (string <-> integer).
## 0.7.1 (2019-01-14)
* Patches as per Last.fm API JSON data format changes: uts timestamp, play counts info are now returned as integers instead of strings.
## 0.7.0 (2019-01-11)
* `sync/0`, `sync/1`: sync and keep tracks of scrobbles for a default and Last.fm users, via delta archiving (download latest scrobbles)
## 0.6.0 (2018-11-10)
* Support for Solr: load all transformed (TSV) data from the archive into Solr, `load_archive/2`
* Underpinning functions to read, parse, load data into Solr
## 0.5.0 (2018-11-05)
* `transform_archive/2`: transform downloaded raw Last.fm archive and create a TSV file archive
* Underpinning functions to read, parse and transform raw Lastfm JSON data into TSV files
## 0.4.1 (2018-11-01)
* fix single year archiving (bug): `daily: true` option
## 0.4.0 (2018-10-31)
* `archive/3`: archiving data subset based on date ranges: single day/year, past week/month, arbitrary date range using `Date`, `Date.Range` structs
* `daily: true` option for finer-grained batch archiving cf. the default year-level granularity
## 0.3.2 (2018-10-27)
* `overwrite` archiving option to also re-fetch any existing downloaded data, for refreshing file archive
## 0.3.1 (2018-10-27)
* Keyword list archiving options (`per_page`, `interval`) for `archive/2` which can also be configured
## 0.3.0 (2018-10-26)
* `archive` latest tracks (current year) on a daily basis to better ensure data immutability and updatability (new scrobbles)
* `archive` older tracks on a yearly basis
## 0.2.0 (2018-10-23)
* `archive/0`: downloads scrobbled tracks, creates a file archive for a default user according to configuration settings
* `archive/2`: downloads scrobbled tracks, creates a file archive for any Lastfm user
* `write/3`: outputs data for multiple Lastfm users (no longer hardwired to the default user)
## 0.1.0 (2018-10-22)
* Download scrobbled tracks raw data, create an archive on local filesystem for a default user in configuration - `archive/1`
* `extract/5` and `write/2` functions for Lastfm API requests and file output
