using System.Text.Json;
using FBCKBLL.Interfaces;
using FBCKDAL.DTOs;
using FBCKDAL.Interfaces;
using GB5Shared.DaprCache;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.EventLogPublish;
using static GB5Shared.GB5Constant.Constant;
using GB5Shared.Resource.Response;
using GB5Shared.Telemetry;
using GB5Shared.Validation;
using Microsoft.Extensions.Logging;

namespace FBCKBLL.Implementations;

public class ActionItemBLL : IActionItemBLL
{
    private readonly IActionItemDAL        _dal;
    private readonly IValidation           _validation;
    private readonly KeyInvalidate         _keyInvalidate;
    private readonly EventLogPublish       _eventLog;
    private readonly ILogger<ActionItemBLL> _logger;

    public ActionItemBLL(IActionItemDAL dal, IValidation validation, KeyInvalidate keyInvalidate,
        EventLogPublish eventLog, ILogger<ActionItemBLL> logger)
    {
        _dal           = dal;
        _validation    = validation;
        _keyInvalidate = keyInvalidate;
        _eventLog      = eventLog;
        _logger        = logger;
    }

    public async Task<string> GetActionItemsAsync(int employeeId, short contextType, int contextId,
        short status, LoginDTO login, CancellationToken ct)
    {
        var list = await _dal.GetActionItemsAsync(employeeId, contextType, contextId, status, login, ct).ConfigureAwait(false);
        return JsonSerializer.Serialize(list);
    }

    public async Task<string> SaveActionItemAsync(ActionItemDTO dto, LoginDTO login, CancellationToken ct)
    {
        try
        {
            GB5Trace.Step("validate-actionitem", new { dto.ActionItemId });
            await _validation.NotEmpty(dto.ActionText, nameof(dto.ActionText)).ConfigureAwait(false);

            bool isNew = dto.ActionItemId == 0;
            GB5Trace.Step("save-actionitem", new { dto.ActionItemId, isNew });
            var savedId = await _dal.SaveActionItemAsync(dto, login, ct).ConfigureAwait(false);

            GB5Trace.Step("event-publish", new { EventTypeId = EventTypeConstant.SAVEFBCKACTIONITEMEVENTTYPEID });
            await _eventLog.PublishEventLogAsync("Action Item Saved", nameof(ActionItemDTO),
                EventTypeConstant.SAVEFBCKACTIONITEMEVENTTYPEID, savedId, login, ct: ct).ConfigureAwait(false);

            var cacheKey = new CacheKeyGeneration().KeyGeneration(0, EntityConstant.OBJECTACTIONITEM,
                CacheKeyLevel.USER_LEVEL, login);
            await _keyInvalidate.AllInvalidateCache(cacheKey).ConfigureAwait(false);

            return isNew ? $"{SuccessResponse.SaveSuccessMessage} {savedId}" : SuccessResponse.UpdateSuccess;
        }
        catch (Exception ex)
        {
            GB5Trace.MarkFailed("actionitem-save-failed", ex);
            _logger.LogError(ex, "SaveActionItem failed for ActionItemId {ActionItemId}", dto.ActionItemId);
            throw;
        }
    }

    public async Task<string> CompleteActionItemAsync(int actionItemId, string completionRemarks, LoginDTO login, CancellationToken ct)
    {
        try
        {
            GB5Trace.Step("validate-actionitem-complete", new { actionItemId });
            await _validation.NotEmpty(completionRemarks, nameof(completionRemarks)).ConfigureAwait(false);

            GB5Trace.Step("complete-actionitem", new { actionItemId });
            await _dal.CompleteActionItemAsync(actionItemId, completionRemarks, login, ct).ConfigureAwait(false);

            GB5Trace.Step("event-publish", new { EventTypeId = EventTypeConstant.COMPLETEFBCKACTIONITEMEVENTTYPEID });
            await _eventLog.PublishEventLogAsync("Action Item Completed", nameof(ActionItemDTO),
                EventTypeConstant.COMPLETEFBCKACTIONITEMEVENTTYPEID, actionItemId, login, ct: ct).ConfigureAwait(false);

            var cacheKey = new CacheKeyGeneration().KeyGeneration(0, EntityConstant.OBJECTACTIONITEM,
                CacheKeyLevel.USER_LEVEL, login);
            await _keyInvalidate.AllInvalidateCache(cacheKey).ConfigureAwait(false);

            return SuccessResponse.UpdateSuccess;
        }
        catch (Exception ex)
        {
            GB5Trace.MarkFailed("actionitem-complete-failed", ex);
            _logger.LogError(ex, "CompleteActionItem failed for ActionItemId {ActionItemId}", actionItemId);
            throw;
        }
    }
}