using Fake.DependencyInjection;
using Oms.Domain.ChannelsAggregate.Entities;
using Oms.Domain.ChannelsAggregate.Repositories;
using Oms.Domain.Shared.Enums;
using Oms.SqlSugarCore.Repositories;

namespace Oms.SqlSugarCore.Channels;

public class ServiceChannelRepository : OmsSqlSugarRepository<ServiceChannel>, IServiceChannelRepository, IScopedDependency
{
    public Task<ServiceChannel?> GetByChannelCodeAsync(string channelCode, CancellationToken cancellationToken = default)
    {
        return FirstOrDefaultAsync(x => x.ChannelCode == channelCode, cancellationToken);
    }

    public Task<bool> HasChannelCodeAsync(string channelCode, CancellationToken cancellationToken = default)
    {
        return AnyAsync(x => x.ChannelCode == channelCode, cancellationToken);
    }

    public async Task<List<ServiceChannelGroup>> GetGroupsAsync(CancellationToken cancellationToken = default)
    {
        var db = await GetDbContextAsync(cancellationToken);
        return await db.Queryable<ServiceChannelGroup>().ToListAsync(cancellationToken);
    }

    public async Task<List<ServiceChannelPrice>> GetPricesAsync(int serviceChannelId, CancellationToken cancellationToken = default)
    {
        var db = await GetDbContextAsync(cancellationToken);
        return await db.Queryable<ServiceChannelPrice>()
            .Where(x => x.ServiceChannelId == serviceChannelId)
            .OrderBy(x => x.SerialNumber)
            .ToListAsync(cancellationToken);
    }

    public async Task<ServiceChannelPrice?> GetPriceByIdAsync(int id, CancellationToken cancellationToken = default)
    {
        var db = await GetDbContextAsync(cancellationToken);
        return await db.Queryable<ServiceChannelPrice>()
            .FirstAsync(x => x.Id == id, cancellationToken);
    }

    public async Task<List<ServiceChannelPriceFactor>> GetPriceFactorsAsync(IEnumerable<int> priceIds, CancellationToken cancellationToken = default)
    {
        var ids = priceIds.Distinct().ToArray();
        if (ids.Length == 0) return [];
        var db = await GetDbContextAsync(cancellationToken);
        return await db.Queryable<ServiceChannelPriceFactor>()
            .Where(x => ids.Contains(x.PriceId))
            .OrderBy(x => x.SerialNumber)
            .ToListAsync(cancellationToken);
    }

    public async Task<List<ServiceChannelPriceDetail>> GetPriceDetailsAsync(IEnumerable<int> priceIds, CancellationToken cancellationToken = default)
    {
        var ids = priceIds.Distinct().ToArray();
        if (ids.Length == 0) return [];
        var db = await GetDbContextAsync(cancellationToken);
        return await db.Queryable<ServiceChannelPriceDetail>()
            .Where(x => ids.Contains(x.PriceId))
            .ToListAsync(cancellationToken);
    }

    public async Task<ServiceChannelPrice> InsertPriceAsync(ServiceChannelPrice price, IEnumerable<ServiceChannelPriceFactor> factors, IEnumerable<ServiceChannelPriceDetail> details, CancellationToken cancellationToken = default)
    {
        var db = await GetDbContextAsync(cancellationToken);
        price.Id = 0;
        var savedPrice = await db.Insertable(price).ExecuteReturnEntityAsync();
        await InsertPriceChildrenAsync(db, savedPrice.Id, factors, details, cancellationToken);
        return savedPrice;
    }

    public async Task UpdatePriceAsync(ServiceChannelPrice price, IEnumerable<ServiceChannelPriceFactor> factors, IEnumerable<ServiceChannelPriceDetail> details, CancellationToken cancellationToken = default)
    {
        var db = await GetDbContextAsync(cancellationToken);
        await db.Updateable(price).ExecuteCommandAsync(cancellationToken);
        await db.Deleteable<ServiceChannelPriceFactor>()
            .Where(x => x.PriceId == price.Id)
            .ExecuteCommandAsync(cancellationToken);
        await db.Deleteable<ServiceChannelPriceDetail>()
            .Where(x => x.PriceId == price.Id)
            .ExecuteCommandAsync(cancellationToken);
        await InsertPriceChildrenAsync(db, price.Id, factors, details, cancellationToken);
    }

    public async Task DeletePriceAsync(int id, CancellationToken cancellationToken = default)
    {
        var db = await GetDbContextAsync(cancellationToken);
        await db.Deleteable<ServiceChannelPrice>()
            .Where(x => x.Id == id)
            .ExecuteCommandAsync(cancellationToken);
        await db.Deleteable<ServiceChannelPriceFactor>()
            .Where(x => x.PriceId == id)
            .ExecuteCommandAsync(cancellationToken);
        await db.Deleteable<ServiceChannelPriceDetail>()
            .Where(x => x.PriceId == id)
            .ExecuteCommandAsync(cancellationToken);
    }

    public async Task UpdatePriceStatusAsync(int id, EnableStatus status, CancellationToken cancellationToken = default)
    {
        var db = await GetDbContextAsync(cancellationToken);
        await db.Updateable<ServiceChannelPrice>()
            .SetColumns(x => x.Status, status)
            .Where(x => x.Id == id)
            .ExecuteCommandAsync(cancellationToken);
    }

    public async Task ReplacePricesAsync(int serviceChannelId, IEnumerable<ServiceChannelPrice> prices, IEnumerable<ServiceChannelPriceFactor> factors, IEnumerable<ServiceChannelPriceDetail> details, CancellationToken cancellationToken = default)
    {
        var db = await GetDbContextAsync(cancellationToken);
        var oldPrices = await db.Queryable<ServiceChannelPrice>()
            .Where(x => x.ServiceChannelId == serviceChannelId)
            .ToListAsync(cancellationToken);
        var oldPriceIds = oldPrices.Select(x => x.Id).ToArray();

        if (oldPriceIds.Length > 0)
        {
            // 批量保存时先整棵旧买价树软删，再写入新的快照数据。
            await db.Deleteable<ServiceChannelPrice>().Where(x => oldPriceIds.Contains(x.Id)).ExecuteCommandAsync(cancellationToken);
            await db.Deleteable<ServiceChannelPriceFactor>().Where(x => oldPriceIds.Contains(x.PriceId)).ExecuteCommandAsync(cancellationToken);
            await db.Deleteable<ServiceChannelPriceDetail>().Where(x => oldPriceIds.Contains(x.PriceId)).ExecuteCommandAsync(cancellationToken);
        }

        var priceList = prices.Select(x => new
        {
            TempId = x.Id,
            Entity = x
        }).ToList();

        if (priceList.Count == 0)
        {
            return;
        }

        var factorList = factors.ToList();
        var detailList = details.ToList();
        foreach (var item in priceList)
        {
            item.Entity.Id = 0;
            item.Entity.ServiceChannelId = serviceChannelId;
            var savedPrice = await db.Insertable(item.Entity).ExecuteReturnEntityAsync();
            // 通过临时 PriceId 将因子和明细绑定回真实买价项主键。
            await InsertPriceChildrenAsync(
                db,
                savedPrice.Id,
                factorList.Where(x => x.PriceId == item.TempId),
                detailList.Where(x => x.PriceId == item.TempId),
                cancellationToken);
        }
    }

    public async Task<List<ServiceChannelPublishRecord>> GetPublishRecordsAsync(int serviceChannelId, string operatorType, int pageIndex, int pageSize, CancellationToken cancellationToken = default)
    {
        var db = await GetDbContextAsync(cancellationToken);
        return await db.Queryable<ServiceChannelPublishRecord>()
            .Where(x => x.ServiceChannelId == serviceChannelId && x.OperatorType == operatorType)
            .OrderBy(x => x.PublishTime, SqlSugar.OrderByType.Desc)
            .ToPageListAsync(pageIndex, pageSize, cancellationToken);
    }

    public async Task<int> CountPublishRecordsAsync(int serviceChannelId, string operatorType, CancellationToken cancellationToken = default)
    {
        var db = await GetDbContextAsync(cancellationToken);
        return await db.Queryable<ServiceChannelPublishRecord>()
            .Where(x => x.ServiceChannelId == serviceChannelId && x.OperatorType == operatorType)
            .CountAsync(cancellationToken);
    }

    public async Task<ServiceChannelPublishRecord> InsertPublishRecordAsync(ServiceChannelPublishRecord record, CancellationToken cancellationToken = default)
    {
        var db = await GetDbContextAsync(cancellationToken);
        return await db.Insertable(record).ExecuteReturnEntityAsync();
    }

    public async Task<ServiceChannelPublishRecord?> GetPublishRecordByIdAsync(int id, CancellationToken cancellationToken = default)
    {
        var db = await GetDbContextAsync(cancellationToken);
        return await db.Queryable<ServiceChannelPublishRecord>().FirstAsync(x => x.Id == id, cancellationToken);
    }

    private static async Task InsertPriceChildrenAsync(
        SqlSugar.ISqlSugarClient db,
        int priceId,
        IEnumerable<ServiceChannelPriceFactor> factors,
        IEnumerable<ServiceChannelPriceDetail> details,
        CancellationToken cancellationToken)
    {
        // 子表在仓储层统一重写 PriceId，应用层只需要维护临时关联关系。
        var factorArray = factors.Select(x =>
        {
            x.Id = 0;
            x.PriceId = priceId;
            return x;
        }).ToArray();
        if (factorArray.Length > 0)
        {
            await db.Insertable(factorArray).ExecuteCommandAsync(cancellationToken);
        }

        var detailArray = details.Select(x =>
        {
            x.Id = 0;
            x.PriceId = priceId;
            return x;
        }).ToArray();
        if (detailArray.Length > 0)
        {
            await db.Insertable(detailArray).ExecuteCommandAsync(cancellationToken);
        }
    }
}