import {Controller} from "./main";
import {VersionInfo} from "./api";

function fmtBytes(n: number): string {
    return `${n} B (${(n / 1024).toFixed(1)} KiB)`;
}

export class OTAView {
    readonly file1Upload: HTMLInputElement;
    readonly firmware_buildtime: HTMLDivElement;
    readonly firmware_githash: HTMLDivElement;
    readonly firmware_partition: HTMLDivElement;
    readonly firmware_state0: HTMLDivElement;
    readonly firmware_state1: HTMLDivElement;
    readonly heap_free: HTMLDivElement;
    readonly heap_used: HTMLDivElement;
    readonly heap_total: HTMLDivElement;
    readonly heap_max_used: HTMLDivElement;

    constructor(controller: Controller) {
        (document.getElementById("firmwareview") as HTMLElement).innerHTML = require("./ota.html")

        let test = document.getElementById("test") as HTMLButtonElement;
        let refresh = document.getElementById("refresh_firmware_info") as HTMLButtonElement;

        this.firmware_buildtime = document.getElementById("firmware_buildtime") as HTMLDivElement;
        this.firmware_githash = document.getElementById("firmware_githash") as HTMLDivElement;
        this.firmware_partition = document.getElementById("firmware_partition") as HTMLDivElement;
        this.firmware_state0 = document.getElementById("firmware_state0") as HTMLDivElement;
        this.firmware_state1 = document.getElementById("firmware_state1") as HTMLDivElement;
        this.heap_free = document.getElementById("heap_free") as HTMLDivElement;
        this.heap_used = document.getElementById("heap_used") as HTMLDivElement;
        this.heap_total = document.getElementById("heap_total") as HTMLDivElement;
        this.heap_max_used = document.getElementById("heap_max_used") as HTMLDivElement;

        const file = document.getElementById("firmware_file") as HTMLInputElement;
        this.file1Upload = file
        this.file1Upload.onchange = () => {
            const selectedFile = file.files?.[0];
            if (selectedFile == null) {
                //TODO error dialog here
                return
            }
            controller.uploadNewFirmware(selectedFile);
        };

        test.onclick = () => {
            controller.selfTest();
        }

        refresh.onclick = () => {
            controller.version();
        }
    }

    setVersion(versionInfo: VersionInfo) {
        this.firmware_buildtime.innerText = versionInfo.build_time;
        this.firmware_githash.innerText = versionInfo.git_hash;
        this.firmware_partition.innerText = versionInfo.current;
        this.firmware_state0.innerText = versionInfo.slot0_state;
        this.firmware_state1.innerText = versionInfo.slot1_state;
        this.heap_free.innerText = fmtBytes(versionInfo.heap_free);
        this.heap_used.innerText = fmtBytes(versionInfo.heap_used);
        this.heap_total.innerText = fmtBytes(versionInfo.heap_total);
        this.heap_max_used.innerText = fmtBytes(versionInfo.heap_max_used);
    }
}