import React from "react"
import useBleStore from "./ExpoBleStore"
import { BleProviderConfig } from "./ExpoBle.types"
import { ExpoBleConnector } from "./ExpoBleConnector"
// import { BluetoothStateManager } from "react-native-bluetooth-state-manager"

const INITIAL_CONFIG: BleProviderConfig = {
    autoScan: true,
    showNamedOnly: true,
}

/**
 * BleProvider sets up a singleton BLE dataflow subscription for the app.
 * Place this at the root of your component tree (e.g. in _layout.tsx or App.tsx).
 */

export const BleProvider: React.FC<{ children: React.ReactNode; config?: BleProviderConfig }> = ({ children, config }) => {
    const setTrigger = useBleStore((state) => state.setTrigger)
    const setShowNamedOnly = useBleStore((state) => state.setShowNamedOnly)
    const resetConnections = useBleStore((state) => state.resetConnections)

    // Merge config with INITIAL_CONFIG for fallback
    const mergedConfig = { ...INITIAL_CONFIG, ...config }

    React.useEffect(() => {
        // BluetoothStateManager.requestToEnable()

        const subscription = ExpoBleConnector.onStateChange((state) => {
            if (state === "PoweredOn") {
                ExpoBleConnector.startScan()
                // Bluetooth is on, do nothing
            } else {
                resetConnections()
            }
        })

        return () => {
            subscription.remove()
        }
    }, [])

    React.useEffect(() => {
        if (mergedConfig.autoScan) {
            ExpoBleConnector.startScan()
        }
        if (typeof mergedConfig.showNamedOnly === "boolean") {
            setShowNamedOnly(mergedConfig.showNamedOnly)
        }
    }, [mergedConfig.autoScan, mergedConfig.showNamedOnly, setShowNamedOnly])

    React.useEffect(() => {
        const unsubscribe = ExpoBleConnector.startDataFlow(
            (v: any) => {
                if (typeof v === "string" && v.startsWith("trigger_")) {
                    setTrigger(v === "trigger_pushed")

                    ExpoBleConnector.startRFIDTrigger(v === "trigger_pushed")
                }
            },
            ["notification"]
        )
        return () => {
            unsubscribe()
        }
    }, [setTrigger])

    return <>{children}</>
}

export default BleProvider