using System.Text.Json;
using Admin.NET.Plugin.AiDOP.Dto.S8;
using Admin.NET.Plugin.AiDOP.Entity.S8;
using Admin.NET.Plugin.AiDOP.Infrastructure;
using Microsoft.Extensions.Logging;

namespace Admin.NET.Plugin.AiDOP.Service.S8;

/// <summary>
/// S8 通知日志只读查询（S8-NOTIFY-AUDIT-LOG-API-1）
/// 仅读 ado_s8_notification_log，不写任何表，不调用 FlowNotifyService。
/// </summary>
public class S8NotificationLogQueryService : ITransient
{
    private readonly SqlSugarRepository<AdoS8NotificationLog> _rep;
    private readonly ILogger<S8NotificationLogQueryService> _logger;

    public S8NotificationLogQueryService(
        SqlSugarRepository<AdoS8NotificationLog> rep,
        ILogger<S8NotificationLogQueryService> logger)
    {
        _rep = rep;
        _logger = logger;
    }

    public async Task<(int total, List<AdoS8NotificationLogListItemDto> list)> GetPagedAsync(AdoS8NotificationLogQueryDto q)
    {
        (q.Page, q.PageSize) = PagingGuard.Normalize(q.Page, q.PageSize);

        // payload LIKE patterns（System.Text.Json camelCase 序列化，格式稳定）
        var recoveredPattern = q.Recovered.HasValue
            ? (q.Recovered.Value ? "\"recovered\":true" : "\"recovered\":false")
            : null;
        var successPattern = q.Success.HasValue
            ? (q.Success.Value ? "\"success\":true" : "\"success\":false")
            : null;

        var query = _rep.AsQueryable()
            .Where(x => x.TenantId == q.TenantId && x.FactoryId == q.FactoryId)
            .WhereIF(q.ExceptionId.HasValue, x => x.ExceptionId == q.ExceptionId!.Value)
            .WhereIF(!string.IsNullOrWhiteSpace(q.Channel), x => x.Channel == q.Channel)
            .WhereIF(recoveredPattern != null, x => x.Payload != null && x.Payload.Contains(recoveredPattern!))
            .WhereIF(successPattern != null, x => x.Payload != null && x.Payload.Contains(successPattern!))
            .WhereIF(!string.IsNullOrWhiteSpace(q.Keyword),
                x => (x.Payload != null && x.Payload.Contains(q.Keyword!)) || x.Channel.Contains(q.Keyword!))
            .WhereIF(q.CreatedAtStart.HasValue, x => x.CreatedAt >= q.CreatedAtStart!.Value)
            .WhereIF(q.CreatedAtEnd.HasValue, x => x.CreatedAt <= q.CreatedAtEnd!.Value);

        var total = await query.CountAsync();
        var rows = await query
            .OrderBy(x => x.CreatedAt, OrderByType.Desc)
            .OrderBy(x => x.Id, OrderByType.Desc)
            .ToPageListAsync(q.Page, q.PageSize);

        var list = rows.Select(x => MapToDto(x)).ToList();
        return (total, list);
    }

    private AdoS8NotificationLogListItemDto MapToDto(AdoS8NotificationLog x)
    {
        var dto = new AdoS8NotificationLogListItemDto
        {
            Id = x.Id,
            TenantId = x.TenantId,
            FactoryId = x.FactoryId,
            ExceptionId = x.ExceptionId,
            Channel = x.Channel,
            Payload = x.Payload,
            CreatedAt = x.CreatedAt,
        };

        if (string.IsNullOrWhiteSpace(x.Payload)) return dto;

        try
        {
            using var doc = JsonDocument.Parse(x.Payload);
            var root = doc.RootElement;

            if (root.TryGetProperty("success", out var sv) && (sv.ValueKind == JsonValueKind.True || sv.ValueKind == JsonValueKind.False))
                dto.Success = sv.GetBoolean();

            if (root.TryGetProperty("recovered", out var rv) && (rv.ValueKind == JsonValueKind.True || rv.ValueKind == JsonValueKind.False))
                dto.Recovered = rv.GetBoolean();

            if (root.TryGetProperty("targetCount", out var tc) && tc.ValueKind == JsonValueKind.Number)
                dto.TargetCount = tc.GetInt32();

            if (root.TryGetProperty("error", out var ev) && ev.ValueKind == JsonValueKind.String)
                dto.ErrorMessage = ev.GetString();
        }
        catch (Exception ex)
        {
            _logger.LogWarning(ex, "S8NotificationLogQuery: payload parse failed for id={Id}", x.Id);
        }

        return dto;
    }
}