using FreeSql;
using F9WebAiTest.Application.Common;
using F9WebAiTest.Application.Dtos.SYS.WuziMulus;
using F9WebAiTest.Application.Dtos.SYS.YuanliaoZhuangkous;
using F9WebAiTest.Application.Interfaces.Repositories.SYS.YuanliaoZhuangkous;
using F9WebAiTest.Domain.Entities.SYS.WuziMulus;
using F9WebAiTest.Domain.Enums.SYS.WuziMulus;
using F9WebAiTest.Domain.Entities.SYS.YuanliaoZhuangkous;

namespace F9WebAiTest.Infrastructure.FreeSqls.Repositories.SYS.YuanliaoZhuangkous;

internal class YuanliaoZhuangkouReadRepository : F9RepositoryBase, IYuanliaoZhuangkouReadRepository
{
    public YuanliaoZhuangkouReadRepository(IFreeSql fsql) : base(fsql) { }

    public async Task<PageResult<YuanliaoZhuangkouReadDto_Table>> GetPagedAsync(int year, string chandi, string zhandian,
        string jibie, string keyword, int pageIndex, int pageSize)
    {
        if (pageIndex <= 0) pageIndex = 1;
        if (pageSize <= 0) pageSize = 20;

        var query = Orm.Select<YuanliaoZhuangkou>().Where(x => x.DeletedAt == null);
        if (year > 0) query = query.Where(x => x.Year == year);
        if (!string.IsNullOrWhiteSpace(chandi)) query = query.Where(x => x.Chandi == chandi.Trim());
        if (!string.IsNullOrWhiteSpace(zhandian)) query = query.Where(x => x.Zhandian == zhandian.Trim());
        if (!string.IsNullOrWhiteSpace(jibie)) query = query.Where(x => x.Jibie == jibie.Trim());

        if (!string.IsNullOrWhiteSpace(keyword))
        {
            var kw = keyword.Trim();
            query = query.Where(x => x.Name.Contains(kw) || x.Code.Contains(kw) || x.Chandi.Contains(kw)
                || x.Zhandian.Contains(kw) || x.Canpinzhong.Contains(kw) || x.Jibie.Contains(kw));
        }

        var total = await query.CountAsync();
        var items = await query
            .OrderByDescending(x => x.Year)
            .OrderBy(x => x.Code)
            .Page(pageIndex, pageSize)
            .ToListAsync(x => new YuanliaoZhuangkouReadDto_Table(x.Id, x.Year, x.Name, x.Code, x.Jibie,
                x.Bendiwaidi, x.Chandi, x.Canpinzhong, x.WzmlId, "", x.Zhandian, x.Pici));

        // 物资名称取自物资目录（sys_wuzi_mulu）
        var nameMap = await GetWuziNameMapAsync(items.Select(x => x.WzmlId).Distinct().ToList());
        var list = items
            .Select(x => x with { WzmlName = nameMap.TryGetValue(x.WzmlId, out var name) ? name : string.Empty })
            .ToList();

        return new PageResult<YuanliaoZhuangkouReadDto_Table>
        {
            Items = list,
            Total = total,
            PageIndex = pageIndex,
            PageSize = pageSize
        };
    }

    public async Task<YuanliaoZhuangkouReadDto_Edit> GetByIdForEditAsync(long id)
    {
        var dto = await Orm.Select<YuanliaoZhuangkou>()
            .Where(x => x.Id == id && x.DeletedAt == null)
            .FirstAsync(x => new YuanliaoZhuangkouReadDto_Edit(x.Id, x.Year, x.Name, x.Code, x.Jibie,
                x.Bendiwaidi, x.Chandi, x.Canpinzhong, x.WzmlId, "", x.Zhandian, x.Pici));

        if (dto == null) return null;

        var nameMap = await GetWuziNameMapAsync(new List<long> { dto.WzmlId });
        return dto with { WzmlName = nameMap.TryGetValue(dto.WzmlId, out var name) ? name : string.Empty };
    }

    public async Task<List<string>> GetCodesByYearAsync(int year)
        => await Orm.Select<YuanliaoZhuangkou>()
            .Where(x => x.Year == year && x.Code != null && x.Code != "")
            .ToListAsync(x => x.Code);

    /// <summary>
    /// 物资（茧别）选项：取物资目录中"业务类型为原料"的分组（含其子分组，如 01 干茧、333 外购茧）下的物资。
    /// 这样可避免把五金件（如捞茧爪轴）之类的物资混入茧别。
    /// </summary>
    public async Task<List<WuziMuluOptionDto>> GetWuziOptionsAsync(string keyword)
    {
        var allGroups = await Orm.Select<WuziGroup>().Where(x => x.DeletedAt == null).ToListAsync();
        var rawGroupIds = new HashSet<long>(allGroups
            .Where(g => g.BusinessType == WuziBusiness_Type_Enum.原料)
            .Select(g => g.Id));

        // 把原料分组的后代分组一并纳入
        var changed = true;
        while (changed)
        {
            changed = false;
            foreach (var group in allGroups)
            {
                if (group.ParentId != 0 && rawGroupIds.Contains(group.ParentId) && rawGroupIds.Add(group.Id))
                    changed = true;
            }
        }

        var rawGroupIdList = rawGroupIds.ToList();
        var query = Orm.Select<WuziMulu>().Where(x => x.DeletedAt == null && rawGroupIdList.Contains(x.GroupId));
        if (!string.IsNullOrWhiteSpace(keyword))
        {
            var kw = keyword.Trim();
            query = query.Where(x => x.Name.Contains(kw) || x.Code.Contains(kw) || x.PinyinName.Contains(kw));
        }

        var rows = await query
            .OrderBy(x => x.Code)
            .Page(1, 300)
            .ToListAsync(x => new WuziRow(x.Id, x.Name, x.Code, x.GroupId));
        if (rows.Count == 0) return new List<WuziMuluOptionDto>();

        var groupIds = rows.Select(x => x.GroupId).Distinct().ToList();
        var groups = await Orm.Select<WuziGroup>().Where(x => groupIds.Contains(x.Id)).ToListAsync();
        var groupNameMap = groups.ToDictionary(x => x.Id, x => x.Name);

        return rows
            .Select(x => new WuziMuluOptionDto(x.Id, x.Name, x.Code,
                groupNameMap.TryGetValue(x.GroupId, out var name) ? name : string.Empty))
            .ToList();
    }

    public async Task<string> GetWuziNameAsync(long wzmlId)
    {
        if (wzmlId <= 0) return string.Empty;
        var nameMap = await GetWuziNameMapAsync(new List<long> { wzmlId });
        return nameMap.TryGetValue(wzmlId, out var name) ? name : string.Empty;
    }

    /// <summary>物资 Id → 名称（取自物资目录）</summary>
    private async Task<Dictionary<long, string>> GetWuziNameMapAsync(List<long> wzmlIds)
    {
        var map = new Dictionary<long, string>();
        if (wzmlIds == null || wzmlIds.Count == 0) return map;

        var rows = await Orm.Select<WuziMulu>()
            .Where(x => wzmlIds.Contains(x.Id))
            .ToListAsync(x => new WuziRow(x.Id, x.Name, x.Code, x.GroupId));

        foreach (var row in rows) map[row.Id] = row.Name;
        return map;
    }

    private sealed record WuziRow(long Id, string Name, string Code, long GroupId);
}