import { Router } from "express";
import { ApiError } from "../shared/errors";
import { requireDeviceToken } from "../shared/middleware/auth";
import { successResponse } from "../shared/middleware/errorMiddleware";
import { getDeviceById, patchDevice } from "../shared/store/deviceStore";
import { createDeviceHeartbeat } from "../shared/store/heartbeatStore";
import { acknowledgeDeviceCommand } from "../shared/store/deviceCommandStore";
const router = Router();
function normalizeNumberOrNull(value) {
    if (typeof value === "string") {
        const parsed = Number(value);
        if (!Number.isNaN(parsed) && Number.isFinite(parsed)) {
            return parsed;
        }
        return null;
    }
    if (typeof value === "number" && Number.isFinite(value)) {
        return value;
    }
    return null;
}
function normalizeSignalStrength(value) {
    const normalized = normalizeNumberOrNull(value);
    if (normalized === null) {
        return null;
    }
    if (normalized < 0 || normalized > 100) {
        throw new Error("NETWORK_STRENGTH_OUT_OF_RANGE");
    }
    return normalized;
}
function normalizeBatteryLevel(value) {
    const normalized = normalizeNumberOrNull(value);
    if (normalized === null) {
        return null;
    }
    if (normalized < 0 || normalized > 100) {
        throw new Error("BATTERY_LEVEL_OUT_OF_RANGE");
    }
    return normalized;
}
router.post("/heartbeat", requireDeviceToken, async (req, res, next) => {
    const payload = req.body;
    if (!payload || !payload.device_id) {
        return next(new ApiError("BAD_REQUEST", "device_id is required", 400));
    }
    const device = await getDeviceById(payload.device_id);
    if (!device) {
        return next(new ApiError("NOT_FOUND", "device not found", 404));
    }
    const eventTs = payload.timestamp ? new Date(payload.timestamp) : new Date();
    if (Number.isNaN(eventTs.getTime())) {
        return next(new ApiError("BAD_REQUEST", "timestamp must be valid ISO datetime", 400));
    }
    let payloadNetworkStrength;
    let payloadBattery;
    try {
        payloadNetworkStrength = normalizeSignalStrength(payload.network_strength);
        payloadBattery = normalizeBatteryLevel(payload.battery_level);
    }
    catch (error) {
        if (error instanceof Error && error.message === "NETWORK_STRENGTH_OUT_OF_RANGE") {
            return next(new ApiError("BAD_REQUEST", "network_strength must be between 0 and 100", 400));
        }
        if (error instanceof Error && error.message === "BATTERY_LEVEL_OUT_OF_RANGE") {
            return next(new ApiError("BAD_REQUEST", "battery_level must be between 0 and 100", 400));
        }
        return next(error);
    }
    const heartbeat = await createDeviceHeartbeat({
        device_id: payload.device_id,
        timestamp: eventTs.toISOString(),
        firmware_version: payload.firmware_version,
        network_strength: payloadNetworkStrength,
        battery_level: payloadBattery,
        state: payload.state,
        payload_json: {
            network_strength_raw: payload.network_strength,
            battery_level_raw: payload.battery_level,
            state: payload.state,
            firmware_version: payload.firmware_version,
            timestamp: payload.timestamp,
            request_id: req.requestId
        }
    });
    await patchDevice(payload.device_id, {
        last_seen_at: heartbeat.timestamp,
        firmware_version: payload.firmware_version || device.firmware_version
    });
    res.json(successResponse(req, {
        heartbeat_id: heartbeat.id,
        device_id: heartbeat.device_id,
        request_id: req.requestId,
        server_time: heartbeat.received_at
    }));
});
router.post("/commands/ack", requireDeviceToken, async (req, res, next) => {
    const payload = req.body;
    if (!payload || !payload.command_id || !payload.device_id || !payload.status) {
        return next(new ApiError("BAD_REQUEST", "command_id, device_id, status are required", 400));
    }
    if (!["delivered", "failed", "timeout"].includes(payload.status)) {
        return next(new ApiError("BAD_REQUEST", "status must be delivered, failed, or timeout", 400));
    }
    const device = await getDeviceById(payload.device_id);
    if (!device) {
        return next(new ApiError("NOT_FOUND", "device not found", 404));
    }
    const updated = await acknowledgeDeviceCommand({
        device_id: device.id,
        command_id: payload.command_id,
        status: payload.status,
        reason: payload.reason,
        result_payload: payload.result_payload
    });
    if (!updated) {
        return next(new ApiError("NOT_FOUND", "command not found", 404));
    }
    res.json(successResponse(req, {
        command_id: updated.id,
        device_id: updated.device_id,
        status: updated.status,
        acknowledged_at: updated.acknowledged_at
    }));
});
export default router;