96 lines
4.0 KiB
Markdown
96 lines
4.0 KiB
Markdown
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## Structure
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**stack**
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* 1. status-go (`src/status/libstatus`)
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* 2. nim-status / business logic & persistence (`src/status`)
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* 3. initializer wrapper (`src/app/<module>/core.nim`)
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* currently contains signals which should be moved into layer 2.
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* 4. views & view logic (`src/app/<module>/view.nim` & `ui/*.qml`)
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**folder structure**
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`src/` - where most of the source is
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`src/app` - Where the Application is
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`src/app/<module>` - module e.g 'chat', 'profile'
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`src/app/<module>/core.nim` - wrapper for this module
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`src/app/<module>/view.nim` - view, exposed data and some view specific logic
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`src/app/<module>/views/*` - views
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`src/signals` - signals (should be refactored & moved into src/status)
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`src/status` - business logic
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`src/status/libstatus` - integration with status-go
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`nim_status_client.nim` - the main file
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`ui/` - QML files
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**`src/status`**
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This folder contains the library that abstracts the status app business logic, it's how the app can interact with status-go as well as how they can obtain data, do actions etc..
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* this folder can only import / call files from `src/status/libstatus` (exception for libraries ofc)
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* only files in `app/` should be able to import from `src/status` (but never `src/status/libstatus`)
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**`src/status/libstatus`**
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This folder abstracts the interactions with status-go
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* generally this folder should only contain code related to interacting with status-go
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* it should not import code from anywhere else (including `src/status`)
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* nothing should call libstatus directly
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* only the code in `status/` should be able to import / call files in `src/status/libstatus`
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**`src/app`**
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This folder contains the code related to each section of the app, generally it should be kept to a minimum amount of logic, *it knows what to do, but not how to do it*
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**`src/app/<module>/`**
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* each `<module>` folder inside `app/` should correspond to a section in the app (exception for the `onboarding/` and `login/` currently)
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* there should be no new folders here unless we are adding a brand new section to the sidebar
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* files inside a `<module>` should not import files from another `<module>`
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* while the code here can react to events emited by nim-status (`src/status`) it should not be able to emit events
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**`src/app/<module>/core.nim`**
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This file is the controller of this module, the general structure of controller is typically predictable and always the same
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* it imports a view
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* it imports the nim-status lib
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* it contains an `init` method
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* it exposes a QVariant
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the constructor has typically the following structure
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```nimrod=
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type NodeController* = ref object of SignalSubscriber
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status*: Status
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view*: NodeView
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variant*: QVariant
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proc newController*(status: Status): NodeController =
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result = NodeController()
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result.status = status
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result.view = newNodeView(status)
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result.variant = newQVariant(result.view)
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method onSignal(self: NodeController, data: Signal) =
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var msg = cast[WalletSignal](data)
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# Do something with the signal...
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```
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* with the exception of `src/status/` and its own files within `src/app/<module>` (i.e the views), a controller should **not** import files from anywhere else (including other files inside `app/`)
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**`src/app/<module>/view.nim`**
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This file contains the main QtObject for this `<module>` and exposes methods to interact with the views for the controller and QML.
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* this file cannot import any other file except:
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* other views within this `<module>`
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* `src/status/` to use their types
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* if there are multiple subviews, then they should go into the `views/` folder and initialized in this file.
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## Future directions
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* signals will be refactored/moved from core.nim files and `signals/` into `src/status/` and instead handle as events
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* instead of importing `src/status/libstatus` in `src/status` files, we will do dependency injection, this allow us to more easily do unit tests, as well as transition from status-go to nimstatus
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* `src/status` should be reanamed to `src/nim-status`
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* `src/status/libstatus` should be renamed to `src/nim-status/status-go`
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