package com.evsuite.abrp;

import java.util.Locale;

/**
 * The words of {@link MediaProbe}'s report: Android's numbers for playback and audio states as
 * names, and text from other apps made safe for one line. Android-free and unit-tested.
 */
final class MediaProbeText {

    /** Longest text kept from another app (a title, an artist). */
    static final int MAX_TEXT = 120;

    private MediaProbeText() {}

    /** Another app's text on one line: control characters out, at most {@link #MAX_TEXT}. */
    static String clean(CharSequence text) {
        if (text == null) return "(none)";
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < text.length() && sb.length() < MAX_TEXT; i++) {
            char c = text.charAt(i);
            sb.append(Character.isISOControl(c) ? ' ' : c);
        }
        String s = sb.toString().trim();
        if (text.length() > MAX_TEXT) s += "…";
        return s.isEmpty() ? "(empty)" : s;
    }

    /** {@code android.media.session.PlaybackState} STATE_*. */
    static String playbackState(int state) {
        switch (state) {
            case 0: return "none";
            case 1: return "stopped";
            case 2: return "paused";
            case 3: return "playing";
            case 4: return "fast forwarding";
            case 5: return "rewinding";
            case 6: return "buffering";
            case 7: return "error";
            case 8: return "connecting";
            case 9: return "skipping to previous";
            case 10: return "skipping to next";
            case 11: return "skipping to queue item";
            default: return "state " + state;
        }
    }

    /** {@code android.media.AudioAttributes} USAGE_*. */
    static String usage(int usage) {
        switch (usage) {
            case 0: return "unknown";
            case 1: return "media";
            case 2: return "voice call";
            case 3: return "call signalling";
            case 4: return "alarm";
            case 5: return "notification";
            case 6: return "ringtone";
            case 7: case 8: case 9: case 10: return "notification (" + usage + ")";
            case 11: return "accessibility";
            case 12: return "navigation guidance";
            case 13: return "sonification";
            case 14: return "game";
            case 15: return "virtual source";
            case 16: return "assistant";
            default: return "usage " + usage;
        }
    }

    /** {@code android.media.AudioPlaybackConfiguration} PLAYER_STATE_*. */
    static String playerState(int state) {
        switch (state) {
            case -1: return "unknown";
            case 0: return "released";
            case 1: return "idle";
            case 2: return "started";
            case 3: return "paused";
            case 4: return "stopped";
            default: return "state " + state;
        }
    }

    /** A position or duration in milliseconds as m:ss; negative (unknown) as "?". */
    static String duration(long ms) {
        if (ms < 0) return "?";
        long s = ms / 1000;
        return String.format(Locale.US, "%d:%02d", s / 60, s % 60);
    }
}