using Admin.NET.Plugin.AiDOP.Dto.S0.Supply;
using Admin.NET.Plugin.AiDOP.Entity.S0.Sales;
using Admin.NET.Plugin.AiDOP.Entity.S0.Supply;
using Admin.NET.Plugin.AiDOP.Infrastructure;

namespace Admin.NET.Plugin.AiDOP.Controllers.S0.Supply;

/// <summary>
/// S0 货源清单（srm_purchase 语义，左联物料主数据展示）
/// </summary>
[ApiController]
[Route("api/s0/supply/srm-purchases")]
[AllowAnonymous]
[NonUnify]
public class AdoS0SrmPurchasesController : ControllerBase
{
    private readonly SqlSugarRepository<AdoS0SrmPurchase> _rep;
    private readonly SqlSugarRepository<AdoS0ItemMaster> _itemRep;
    private readonly SqlSugarRepository<AdoS0SuppMaster> _suppRep;

    public AdoS0SrmPurchasesController(
        SqlSugarRepository<AdoS0SrmPurchase> rep,
        SqlSugarRepository<AdoS0ItemMaster> itemRep,
        SqlSugarRepository<AdoS0SuppMaster> suppRep)
    {
        _rep = rep;
        _itemRep = itemRep;
        _suppRep = suppRep;
    }

    [HttpGet]
    public async Task<IActionResult> GetPagedAsync([FromQuery] AdoS0SrmPurchaseQueryDto q)
    {
        (q.Page, q.PageSize) = PagingGuard.Normalize(q.Page, q.PageSize);

        var baseQuery = _rep.AsQueryable()
            .WhereIF(q.CompanyRefId.HasValue, x => x.CompanyRefId == q.CompanyRefId.Value)
            .WhereIF(q.FactoryRefId.HasValue, x => x.FactoryRefId == q.FactoryRefId.Value)
            .WhereIF(!string.IsNullOrWhiteSpace(q.DomainCode), x => x.DomainCode == q.DomainCode)
            .WhereIF(!string.IsNullOrWhiteSpace(q.SupplierType), x => x.SupplierType != null && x.SupplierType.Contains(q.SupplierType!))
            .WhereIF(q.IsActive.HasValue, x => x.IsActive == q.IsActive.Value)
            .WhereIF(!string.IsNullOrWhiteSpace(q.SupplierName), x => x.SupplierName != null && x.SupplierName.Contains(q.SupplierName!))
            .WhereIF(!string.IsNullOrWhiteSpace(q.SupplierNumber), x => x.SupplierNumber != null && x.SupplierNumber.Contains(q.SupplierNumber!))
            .WhereIF(!string.IsNullOrWhiteSpace(q.CurrencyType), x => x.CurrencyType != null && x.CurrencyType.Contains(q.CurrencyType!));

        if (!string.IsNullOrWhiteSpace(q.Keyword))
        {
            var kw = q.Keyword!;
            var itemIds = await _itemRep.AsQueryable()
                .Where(it =>
                    it.ItemNum.Contains(kw) ||
                    it.Descr.Contains(kw) ||
                    (it.Descr1 != null && it.Descr1.Contains(kw)))
                .Select(it => it.Id)
                .ToListAsync();

            baseQuery = baseQuery.Where(x =>
                (x.IcitemName != null && x.IcitemName.Contains(kw)) ||
                (x.SupplierName != null && x.SupplierName.Contains(kw)) ||
                (x.SupplierNumber != null && x.SupplierNumber.Contains(kw)) ||
                (itemIds.Count > 0 && itemIds.Contains(x.IcitemId)));
        }

        var total = await baseQuery.CountAsync();
        var list = await baseQuery
            .OrderByDescending(x => x.CreateTime)
            .Skip((q.Page - 1) * q.PageSize)
            .Take(q.PageSize)
            .ToListAsync();

        await ApplyItemAndSupplierDisplayAsync(list);

        return Ok(new { total, page = q.Page, pageSize = q.PageSize, list });
    }

    [HttpGet("{id:long}")]
    public async Task<IActionResult> GetAsync(long id)
    {
        var item = await _rep.GetByIdAsync(id);
        if (item == null) return NotFound();

        await ApplyItemAndSupplierDisplayAsync(new List<AdoS0SrmPurchase> { item });
        return Ok(item);
    }

    [HttpPost]
    public async Task<IActionResult> CreateAsync([FromBody] AdoS0SrmPurchaseUpsertDto dto)
    {
        var dateErr = ValidateDateRange(dto.EffectiveDate, dto.ExpiringDate);
        if (dateErr != null) return AdoS0ApiErrors.InvalidRequest(dateErr);

        var refErr = await ValidateReferencesAsync(dto.IcitemId, dto.SupplierId);
        if (refErr != null) return refErr;

        var now = DateTime.Now;
        var entity = MapDtoToEntity(dto, new AdoS0SrmPurchase(), now, isNew: true);
        await _rep.AsInsertable(entity).ExecuteReturnEntityAsync();

        await ApplyItemAndSupplierDisplayAsync(new List<AdoS0SrmPurchase> { entity });
        return Ok(entity);
    }

    [HttpPut("{id:long}")]
    public async Task<IActionResult> UpdateAsync(long id, [FromBody] AdoS0SrmPurchaseUpsertDto dto)
    {
        var entity = await _rep.GetByIdAsync(id);
        if (entity == null) return NotFound();

        var dateErr = ValidateDateRange(dto.EffectiveDate, dto.ExpiringDate);
        if (dateErr != null) return AdoS0ApiErrors.InvalidRequest(dateErr);

        var refErr = await ValidateReferencesAsync(dto.IcitemId, dto.SupplierId);
        if (refErr != null) return refErr;

        MapDtoToEntity(dto, entity, DateTime.Now, isNew: false);
        await _rep.AsUpdateable(entity).ExecuteCommandAsync();

        await ApplyItemAndSupplierDisplayAsync(new List<AdoS0SrmPurchase> { entity });
        return Ok(entity);
    }

    [HttpDelete("{id:long}")]
    public async Task<IActionResult> DeleteAsync(long id)
    {
        var item = await _rep.GetByIdAsync(id);
        if (item == null) return NotFound();

        await _rep.DeleteAsync(item);
        return Ok(new { message = "删除成功" });
    }

    private static string? ValidateDateRange(DateTime? effective, DateTime? expiring)
    {
        if (effective.HasValue && expiring.HasValue && effective.Value.Date > expiring.Value.Date)
            return "生效日期不能晚于失效日期";
        return null;
    }

    private async Task<IActionResult?> ValidateReferencesAsync(long icitemId, long supplierId)
    {
        if (!await _itemRep.IsAnyAsync(x => x.Id == icitemId))
            return AdoS0ApiErrors.InvalidReference(AdoS0ErrorCodes.MaterialReferenceInvalid, "物料主数据引用无效");

        if (!await _suppRep.IsAnyAsync(x => x.Id == supplierId))
            return AdoS0ApiErrors.InvalidReference(AdoS0ErrorCodes.InvalidReference, "供应商主数据引用无效");

        return null;
    }

    private static AdoS0SrmPurchase MapDtoToEntity(AdoS0SrmPurchaseUpsertDto dto, AdoS0SrmPurchase entity, DateTime now, bool isNew)
    {
        entity.CompanyRefId = dto.CompanyRefId;
        entity.FactoryRefId = dto.FactoryRefId;
        entity.DomainCode = dto.DomainCode;
        entity.IcitemId = dto.IcitemId;
        entity.IcitemName = dto.IcitemName;
        entity.SupplierType = dto.SupplierType;
        entity.IsActive = dto.IsActive;
        entity.SupplierId = dto.SupplierId;
        entity.SupplierName = dto.SupplierName;
        entity.SupplierNumber = dto.SupplierNumber;
        entity.OrderPrice = dto.OrderPrice;
        entity.CurrencyType = dto.CurrencyType;
        entity.Taxrate = dto.Taxrate;
        entity.Tariff = dto.Tariff;
        entity.Freight = dto.Freight;
        entity.PriceTerms = dto.PriceTerms;
        entity.EffectiveDate = dto.EffectiveDate;
        entity.ExpiringDate = dto.ExpiringDate;
        entity.QuotaRate = dto.QuotaRate;
        entity.LeadTime = dto.LeadTime;
        entity.QtyMin = dto.QtyMin;
        entity.PackagingQty = dto.PackagingQty;
        entity.OrderRectorName = dto.OrderRectorName;
        entity.OrderRectorNum = dto.OrderRectorNum;
        entity.IsRequireGoods = dto.IsRequireGoods;

        if (isNew)
        {
            entity.CreateUser = dto.CreateUser;
            entity.CreateTime = now;
            entity.UpdateUser = dto.UpdateUser;
            entity.UpdateTime = null;
        }
        else
        {
            entity.UpdateUser = dto.UpdateUser;
            entity.UpdateTime = now;
        }

        return entity;
    }

    private async Task ApplyItemAndSupplierDisplayAsync(List<AdoS0SrmPurchase> rows)
    {
        if (rows.Count == 0) return;

        var itemIds = rows.Select(x => x.IcitemId).Where(id => id > 0).Distinct().ToList();
        var items = itemIds.Count == 0
            ? new List<AdoS0ItemMaster>()
            : await _itemRep.AsQueryable().Where(it => itemIds.Contains(it.Id)).ToListAsync();

        foreach (var sp in rows)
        {
            var it = items.Find(i => i.Id == sp.IcitemId);
            sp.MaterialCode = it?.ItemNum;
            sp.Model = it?.Descr1;
            sp.Unit = it?.UM;
            sp.ItemTypeLabel = string.IsNullOrWhiteSpace(it?.ItemType) ? "原材料" : it!.ItemType;
            var num = sp.MaterialCode ?? "";
            var name = sp.IcitemName ?? "";
            sp.Icitem = $"{num}{name}";
            var sname = sp.SupplierName ?? "";
            var snum = sp.SupplierNumber ?? "";
            sp.Supplier = $"{sname}{snum}";
        }
    }
}