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62 lines
3.2 KiB
Markdown
62 lines
3.2 KiB
Markdown
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# PyLink Services Bot API
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Starting with PyLink 0.9.x, a services bot API was introduced to make writing custom services slightly easier. PyLink's Services API automatically connects service bots, and handles rejoin on kick/kill all by itself, meaning less code is needed per plugin to have functional service bots.
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## Creating new services
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Services can be created (registered) using code similar to the following in a plugin:
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```python
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from pylinkirc import utils, world
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# Description is optional (though recommended), and usually around a sentence or two.
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desc = "Optional description of servicenick, in sentence form."
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# First argument is the internal service name.
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# utils.registerService() returns a utils.ServiceBot instance, which can also be found
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# by calling world["myservice"].
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myservice = utils.registerService("myservice", desc=desc)
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```
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`utils.registerService()` passes its arguments directly to the `utils.ServiceBot` class constructor, which in turn supports the following options:
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- **`name`** - defines the service name (mandatory)
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- `default_help` - Determines whether the default HELP command should be used for the service. Defaults to True.
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- `default_list` - Determines whether the default LIST command should be used for the service. Defaults to True.
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- `nick`, `ident` - Sets the default nick and ident for the service bot. If not given, these simply default to the service name.
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- `manipulatable` - Determines whether the bot is marked manipulatable. Only manipulatable clients can be force joined, etc. using PyLink commands. Defaults to False.
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- `extra_channels` - Defines a dict mapping network names to a set of channels that the bot should autojoin on that network.
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- `desc` - Sets the command description of the service. This is shown in the default HELP command if enabled.
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### Getting the UID of a bot
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Should you want to get the UID of a service bot on a specific server, use `myservice.uids.get('irc.name')`
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### Setting channels to join
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All services bots wil automatically join the autojoin channels configured for a specific network, if any.
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However, plugins can modify the autojoin entries of a specific bot by adding items to the `myservice.extra_channels` channel set. After sending `irc.proto.join(...)` using the service bot's UID as a source, the bot should permanently remain on that channel throughout KILLs or disconnects.
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## Removing services on unload
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All plugins using the services API **MUST** have a `die()` function that unregisters all services that they've created. A simple example would be in the `games` plugin:
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```python
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def die(irc):
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utils.unregisterService('games')
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```
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## Service bots and commands
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Commands for service bots and commands for the main PyLink bot have two main differences.
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1) Commands for service bots are bound using `myservice.add_cmd(cmdfunc, 'cmdname')` instead of `utils.add_cmd(...)`
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2) Replies for service bot commands are sent using `myservice.reply(irc, text)` instead of `irc.reply(...)`
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### Featured commands
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Commands for service bots can also be marked as *featured*, which shows it with its command arguments in the default `LIST` command. To mark a command as featured, use `myservice.add_cmd(cmdfunc, 'cmdname', featured=True)`.
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