BottomSheet component

[ahmadtaimoor-deriv]

Summary by Sourcery

Introduce the BottomSheet component for displaying trade contracts.

New Features:

• A BottomSheet component is added to display contract details.

Tests:

• Added tests for the BottomSheet component.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request introduces a BottomSheet component using Zustand for state management and Radix UI for dialog and presence. It also includes configuration for different bottom sheet contents.

Sequence diagram for BottomSheet interaction flow

sequenceDiagram
    actor User
    participant TB as TradeButton
    participant BS as BottomSheet
    participant BSS as BottomSheetStore

    User->>TB: Clicks Rise button
    TB->>BSS: setBottomSheet(true, 'rise-contract')
    BSS->>BS: Updates state
    BS->>BS: Renders overlay and sheet

    Note over BS: User can dismiss by:

    alt Swipe down
        User->>BS: Swipes down
        BS->>BS: Tracks touch movement
        BS->>BSS: setBottomSheet(false)
    else Tap overlay
        User->>BS: Taps overlay
        BS->>BSS: setBottomSheet(false)
    end

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Class diagram for BottomSheet component structure

classDiagram
    class BottomSheet {
        +useRef() sheetRef
        +useRef() dragStartY
        +useRef() currentY
        +useRef() isDragging
        +handleTouchStart()
        +handleTouchMove()
        +handleTouchEnd()
        +render()
    }

    class BottomSheetStore {
        +boolean showBottomSheet
        +string|null key
        +string height
        +setBottomSheet(show, key?, height?)
    }

    class BottomSheetConfig {
        +ReactNode body
    }

    BottomSheet ..> BottomSheetStore : uses
    BottomSheet ..> BottomSheetConfig : uses

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State diagram for BottomSheet component

stateDiagram-v2
    [*] --> Hidden
    Hidden --> Visible: setBottomSheet(true)

    state Visible {
        [*] --> Idle
        Idle --> Dragging: Touch Start
        Dragging --> Idle: Touch End (deltaY < 100)
        Dragging --> Hidden: Touch End (deltaY > 100)
    }

    Visible --> Hidden: setBottomSheet(false)

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File-Level Changes

Change	Details	Files
Implemented the BottomSheet component with drag functionality and overlay.	Added touch event handlers for dragging. Implemented logic to dismiss the bottom sheet on drag. Added overlay for background dimming. Used Radix UI for dialog and presence	src/components/BottomSheet/BottomSheet.tsx
Created a store for managing the bottom sheet state.	Defined a Zustand store for bottom sheet visibility, key, and height. Added a setter function to update the store's state.	src/stores/bottomSheetStore.ts
Added bottom sheet configuration.	Created a configuration file to define the content for different bottom sheets. Added a sample 'rise-contract' configuration.	src/config/bottomSheetConfig.tsx
Integrated the BottomSheet component into the TradePage.	Imported and rendered the BottomSheet component. Added a button to trigger the 'rise-contract' bottom sheet.	src/screens/TradePage/TradePage.tsx
Added Radix UI dependencies.	Added @radix-ui/react-dialog and @radix-ui/react-presence as dependencies.	package.json

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[sourcery-ai]

Hey @ahmadtaimoor-deriv - I've reviewed your changes - here's some feedback:

Overall Comments:

• Consider extracting the touch gesture logic into a custom hook (e.g. useBottomSheetGestures) to improve reusability and testability
• The touch gesture handling could be more robust by handling edge cases like interrupted animations and rapid successive gestures

Here's what I looked at during the review

• 🟡 General issues: 1 issue found
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[shafin-deriv]

@ahmadtaimoor-deriv let's generate/update docs for these changes