using Fake.DependencyInjection;
using Fake.EventBus.Distributed;
using Microsoft.Extensions.Logging;
using Oms.Application.Messaging.OrderSideEffects;
using Oms.Domain.ChannelsAggregate.Consts;
using Oms.Domain.ChannelsAggregate.Entities;
using Oms.Domain.ChannelsAggregate.Repositories;
using Oms.Domain.OrdersAggregate.Entities;
using Oms.Domain.OrdersAggregate.Repositories;
using Oms.Domain.Shared.Enums;

namespace Oms.Application.Services.Orders.Issues;

public class AutoTriggerRuntimeService(
    IAutoTriggerRepository autoTriggerRepository,
    IOrderRepository orderRepository,
    OrderAutoTriggerService orderAutoTriggerService,
    OrderExceptionWorkflowService exceptionWorkflowService,
    OrderIssueNotificationService issueNotificationService,
    IDistributedEventBus eventBus,
    ILogger<AutoTriggerRuntimeService> logger) : IScopedDependency
{
    private const string InterceptOperation = "拦截";

    /// <summary>
    /// 投递自动触发事件（须在事务 UoW 内调用，写入 Outbox）。
    /// </summary>
    public Task EnqueueFireAsync(int orderId, AutoTriggerTiming timing, int operatorUserId) =>
        orderId <= 0
            ? Task.CompletedTask
            : eventBus.PublishAsync(new OrderAutoTriggerFireIntegrationEvent
            {
                OrderId = orderId,
                Timing = timing.ToString(),
                OperatorUserId = operatorUserId
            });

    public async Task FireAsync(Order order, AutoTriggerTiming timing, int operatorUserId)
    {
        if (order.Id <= 0)
        {
            return;
        }

        var context = await orderAutoTriggerService.BuildPostCommitContextAsync(order);
        var triggers = await autoTriggerRepository.GetListAsync(x => x.Status == EnableStatus.Enabled);
        var orderedTriggers = triggers
            .Where(x => AutoTriggerTimingCodes.Matches(x.TriggerTiming, timing))
            .Select(x => (Trigger: x, Priority: AutoTriggerRuleResolver.GetPriority(x)))
            .OrderBy(x => x.Priority)
            .ThenBy(x => x.Trigger.Id)
            .Select(x => x.Trigger)
            .ToList();

        foreach (var trigger in orderedTriggers)
        {
            if (timing == AutoTriggerTiming.OrderCreate
                && string.Equals(trigger.Operation?.Trim(), InterceptOperation, StringComparison.Ordinal))
            {
                continue;
            }

            if (!AutoTriggerConditionMatcher.Matches(context, trigger.TriggerCondition))
            {
                continue;
            }

            try
            {
                await ExecuteTriggerAsync(order, trigger, operatorUserId);
            }
            catch (Exception ex)
            {
                logger.LogWarning(ex, "自动触发失败 OrderId={OrderId} TriggerId={TriggerId}", order.Id, trigger.Id);
            }
        }
    }

    public async Task FireByOrderIdAsync(int orderId, AutoTriggerTiming timing, int operatorUserId)
    {
        var order = await orderRepository.FirstOrDefaultAsync(x => x.Id == orderId);
        if (order == null)
        {
            return;
        }

        await FireAsync(order, timing, operatorUserId);
    }

    private async Task ExecuteTriggerAsync(
        Order order,
        AutoTrigger trigger,
        int operatorUserId)
    {
        var operation = trigger.Operation?.Trim();
        if (string.Equals(operation, InterceptOperation, StringComparison.Ordinal))
        {
            if (order.IsIntercept == 0)
            {
                order.IsIntercept = 1;
                await orderRepository.UpdateAsync(order);
            }

            return;
        }

        if (string.Equals(operation, "警告", StringComparison.Ordinal))
        {
            var title = string.IsNullOrWhiteSpace(trigger.PromptMessage)
                ? "订单预警"
                : trigger.PromptMessage.Trim();
            var content = string.IsNullOrWhiteSpace(trigger.TriggerCondition)
                ? $"运单 {{serviceNo}} 触发自动警告规则"
                : trigger.TriggerCondition.Trim();
            var context = IssuePlaceholderContext.FromOrder(order, null, title);
            await issueNotificationService.DispatchAsync(
                order,
                IssuePlaceholderRenderer.Render(title, context),
                IssuePlaceholderRenderer.Render(content, context),
                IssueNotifyMethodCodes.InApp,
                operatorUserId,
                null,
                AutoTriggerConditionMatcher.ParseNotifierUserIds(trigger.Notifier));
            return;
        }

        if (!string.Equals(operation, "问题件", StringComparison.Ordinal))
        {
            return;
        }

        var issueType = AutoTriggerConditionMatcher.ResolveIssueType(trigger.TriggerCondition);
        var request = await exceptionWorkflowService.BuildRequestFromTemplateAsync(
            order.OrganizationId,
            issueType,
            trigger.PromptMessage,
            null,
            $"自动触发#{trigger.Id}");
        if (request == null)
        {
            logger.LogInformation(
                "自动触发问题件跳过：未匹配问题模板 OrderId={OrderId} TriggerId={TriggerId}",
                order.Id,
                trigger.Id);
            return;
        }

        request.ExtraReceiverUserIds = AutoTriggerConditionMatcher.ParseNotifierUserIds(trigger.Notifier);
        var reason = await exceptionWorkflowService.TryMarkProblematicAsync(order, request, operatorUserId, true);
        if (!string.IsNullOrWhiteSpace(reason))
        {
            logger.LogInformation(
                "自动触发问题件未执行 OrderId={OrderId} TriggerId={TriggerId} Reason={Reason}",
                order.Id,
                trigger.Id,
                reason);
        }
    }
}