// Author:  cirakg & claude ai
// Summary: The outcome of one import: counts, per-item errors and skips, notes, and the texts for the status field and results screen.

import Toybox.Lang;

class ImportReport {

    // At most this many detail lines are kept (the results screen scrolls).
    static const MAX_DETAILS = 40;

    var imported as Number = 0;
    var pendingLocked as Number = 0;
    var duplicates as Number = 0;
    var errors as Number = 0;
    var skipped as Number = 0;
    var removed as Number = 0;
    // Set when the whole import failed (not JSON, encrypted, storage full
    // before anything was stored...).
    var failure as String? = null;
    // Set while a multi-part import waits for its next part.
    var waitingChars as Number = -1;
    var details as Array<String> = [] as Array<String>;

    function initialize() {
    }

    function addDetail(line as String) as Void {
        if (details.size() < MAX_DETAILS) {
            details.add(line);
        } else if (details.size() == MAX_DETAILS) {
            details.add("…");
        }
    }

    // One line for the phone's Import status field, for example
    // "Imported 12 · 2 duplicates skipped · 1 error · 1 skipped".
    function summary() as String {
        var f = failure;
        if (f != null) {
            return "Not imported: " + f;
        }
        if (waitingChars >= 0) {
            return "Waiting for more: received " + waitingChars
                + " characters. Paste the next part into the import fields and turn 'Import now' on again.";
        }
        var text = "Imported " + imported;
        if (pendingLocked > 0) {
            text += " (" + pendingLocked + " locked, waiting for your PIN)";
        }
        if (removed > 0) {
            text += " · " + removed + " old imported removed";
        }
        if (duplicates > 0) {
            text += " · " + duplicates + (duplicates == 1 ? " duplicate skipped" : " duplicates skipped");
        }
        if (errors > 0) {
            text += " · " + errors + (errors == 1 ? " error" : " errors");
        }
        if (skipped > 0) {
            text += " · " + skipped + " skipped";
        }
        return text;
    }

    // The summary followed by the details, for the results screen.
    function lines() as Array<String> {
        var out = [summary()] as Array<String>;
        out.addAll(details);
        return out;
    }
}