using Microsoft.Data.Sqlite;
using ytLive.Models;

namespace ytLive.Services;

public partial class LayoutStore : IDisposable
{
    // ─── YPP journey-tracker snapshots (TASK 39) ───

    /// <summary>Appends one YPP stats snapshot (append-only history; velocity/ETA
    /// read it in a later analytics slice).</summary>
    public void SaveYppSnapshot(YppStatSnapshot snapshot)
    {
        using var cmd = _connection.CreateCommand();
        cmd.CommandText = """
            INSERT INTO YppSnapshot (CapturedAtUtc, SubscriberCount, VideoCount, TotalViews,
                                     UploadsLast90Days, CommunityGuidelinesGoodStanding,
                                     CopyrightStrikesGoodStanding, ContentIdClaimsGoodStanding,
                                     OverallGoodStanding)
            VALUES ($captured, $subs, $videos, $views, $uploads, $cg, $cs, $cic, $overall);
            """;
        cmd.Parameters.AddWithValue("$captured", snapshot.CapturedAtUtc.ToString("o"));
        cmd.Parameters.AddWithValue("$subs", snapshot.SubscriberCount);
        cmd.Parameters.AddWithValue("$videos", snapshot.VideoCount);
        cmd.Parameters.AddWithValue("$views", snapshot.TotalViews);
        cmd.Parameters.AddWithValue("$uploads", snapshot.UploadsLast90Days);
        cmd.Parameters.AddWithValue("$cg", snapshot.CommunityGuidelinesGoodStanding ? 1 : 0);
        cmd.Parameters.AddWithValue("$cs", snapshot.CopyrightStrikesGoodStanding ? 1 : 0);
        cmd.Parameters.AddWithValue("$cic", snapshot.ContentIdClaimsGoodStanding ? 1 : 0);
        cmd.Parameters.AddWithValue("$overall", snapshot.OverallGoodStanding ? 1 : 0);
        cmd.ExecuteNonQuery();
    }

    /// <summary>Most recent snapshots, newest first (defaults to the full history).</summary>
    public List<YppStatSnapshot> LoadYppSnapshots(int limit = 365)
    {
        var result = new List<YppStatSnapshot>();
        using var cmd = _connection.CreateCommand();
        cmd.CommandText = """
            SELECT CapturedAtUtc, SubscriberCount, VideoCount, TotalViews, UploadsLast90Days,
                   CommunityGuidelinesGoodStanding, CopyrightStrikesGoodStanding,
                   ContentIdClaimsGoodStanding, OverallGoodStanding
            FROM YppSnapshot ORDER BY CapturedAtUtc DESC LIMIT $limit;
            """;
        cmd.Parameters.AddWithValue("$limit", limit);
        using var reader = cmd.ExecuteReader();
        while (reader.Read())
        {
            result.Add(new YppStatSnapshot
            {
                CapturedAtUtc = DateTime.TryParse(reader.GetString(0), out var captured) ? captured : DateTime.MinValue,
                SubscriberCount = reader.GetInt64(1),
                VideoCount = reader.GetInt64(2),
                TotalViews = reader.GetInt64(3),
                UploadsLast90Days = reader.GetInt32(4),
                CommunityGuidelinesGoodStanding = reader.GetInt32(5) != 0,
                CopyrightStrikesGoodStanding = reader.GetInt32(6) != 0,
                ContentIdClaimsGoodStanding = reader.GetInt32(7) != 0,
                OverallGoodStanding = reader.GetInt32(8) != 0,
            });
        }
        return result;
    }

    /// <summary>The manually self-reported YPP checklist state (2FA / AdSense are
    /// not readable from any YouTube API — the creator ticks them in-app).</summary>
    public (bool TwoFactorEnabled, bool AdSenseLinked) LoadYppChecklist()
    {
        return (GetSetting("Ypp.TwoFactorEnabled") == "1", GetSetting("Ypp.AdSenseLinked") == "1");
    }

    public void SaveYppChecklist(bool twoFactorEnabled, bool adsenseLinked)
    {
        UpsertSetting("Ypp.TwoFactorEnabled", twoFactorEnabled ? "1" : "0");
        UpsertSetting("Ypp.AdSenseLinked", adsenseLinked ? "1" : "0");
    }

    /// <summary>UTC timestamp of the last successful stats refresh (used to gate
    /// the once-daily auto-refresh against the analytics quota-thin API).</summary>
    public DateTime? LoadYppLastRefreshedAtUtc()
    {
        var value = GetSetting("Ypp.LastRefreshedAtUtc");
        return DateTime.TryParse(value, out var dt) ? dt : null;
    }

    public void SaveYppLastRefreshedAtUtc(DateTime utc)
    {
        UpsertSetting("Ypp.LastRefreshedAtUtc", utc.ToString("o"));
    }
}