using System.Text.Json;
using Admin.NET.Plugin.AiDOP.Dto.S0.Sales;
using Admin.NET.Plugin.AiDOP.Entity.S0.Sales;
using Admin.NET.Plugin.AiDOP.Infrastructure;

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

/// <summary>
/// S0 订单优先级业务规则（ado_s0_sales_order_priority_rule）
/// </summary>
[ApiController]
[Route("api/s0/sales/priority-rules")]
[AllowAnonymous]
[NonUnify]
public class AdoS0PriorityRulesController : ControllerBase
{
    private readonly SqlSugarRepository<AdoS0PriorityRule> _rep;

    public AdoS0PriorityRulesController(SqlSugarRepository<AdoS0PriorityRule> rep)
    {
        _rep = rep;
    }

    [HttpGet]
    public async Task<IActionResult> GetPagedAsync([FromQuery] AdoS0PriorityRuleQueryDto q)
    {
        (q.Page, q.PageSize) = PagingGuard.Normalize(q.Page, q.PageSize);

        var query = _rep.AsQueryable()
            .WhereIF(q.CompanyRefId.HasValue, x => x.CompanyRefId == q.CompanyRefId!.Value)
            .WhereIF(q.FactoryRefId.HasValue, x => x.FactoryRefId == q.FactoryRefId!.Value)
            .WhereIF(q.IsEnabled.HasValue, x => x.IsEnabled == q.IsEnabled!.Value)
            .WhereIF(
                !string.IsNullOrWhiteSpace(q.Keyword),
                x => x.Code.Contains(q.Keyword!) || x.Name.Contains(q.Keyword!));

        var total = await query.CountAsync();
        var list = await query
            .OrderBy(x => x.PriorityLevel)
            .Skip((q.Page - 1) * q.PageSize)
            .Take(q.PageSize)
            .ToListAsync();

        foreach (var item in list)
            FillRuleExprLabels(item);

        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();
        FillRuleExprLabels(item);
        return Ok(item);
    }

    [HttpPost]
    public async Task<IActionResult> CreateAsync([FromBody] AdoS0PriorityRuleUpsertDto dto)
    {
        var now = DateTime.Now;
        var entity = MapToEntity(dto);
        entity.CreatedAt = now;

        await _rep.AsInsertable(entity).ExecuteReturnEntityAsync();
        FillRuleExprLabels(entity);
        return Ok(entity);
    }

    [HttpPut("{id:long}")]
    public async Task<IActionResult> UpdateAsync(long id, [FromBody] AdoS0PriorityRuleUpsertDto dto)
    {
        var entity = await _rep.GetByIdAsync(id);
        if (entity == null) return NotFound();

        ApplyUpsert(entity, dto);
        entity.UpdatedAt = DateTime.Now;

        await _rep.AsUpdateable(entity).ExecuteCommandAsync();
        FillRuleExprLabels(entity);
        return Ok(entity);
    }

    [HttpPatch("{id:long}/toggle-enabled")]
    public async Task<IActionResult> ToggleEnabledAsync(long id, [FromBody] AdoS0PriorityRuleToggleDto dto)
    {
        var entity = await _rep.GetByIdAsync(id);
        if (entity == null) return NotFound();

        entity.IsEnabled = dto.IsEnabled;
        entity.UpdatedAt = DateTime.Now;

        await _rep.AsUpdateable(entity).ExecuteCommandAsync();
        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" });
    }

    // ── helpers ──────────────────────────────────────────────────────────────

    private static AdoS0PriorityRule MapToEntity(AdoS0PriorityRuleUpsertDto dto)
    {
        var entity = new AdoS0PriorityRule();
        ApplyUpsert(entity, dto);
        return entity;
    }

    private static void ApplyUpsert(AdoS0PriorityRule entity, AdoS0PriorityRuleUpsertDto dto)
    {
        entity.CompanyRefId     = dto.CompanyRefId;
        entity.FactoryRefId     = dto.FactoryRefId;
        entity.Code             = dto.Code;
        entity.Name             = dto.Name;
        entity.PriorityLevel    = dto.PriorityLevel;
        entity.SortDirection    = dto.SortDirection;
        entity.SourceEntity     = dto.SourceEntity;
        entity.SourceField      = dto.SourceField;
        entity.SourceFieldType  = dto.SourceFieldType;
        entity.SourceLinkField  = dto.SourceLinkField;
        entity.WorkOrderField   = dto.WorkOrderField;
        entity.WorkOrderFieldType = dto.WorkOrderFieldType;
        entity.WorkOrderLinkField = dto.WorkOrderLinkField;
        entity.IsEnabled        = dto.IsEnabled;
        entity.Remark           = dto.Remark;
        entity.RuleExpr = BuildRuleExpr(dto.CustomerType, dto.OrderType, dto.DueStatus);
    }

    private static string? BuildRuleExpr(string? customerType, string? orderType, string? dueStatus)
    {
        if (string.IsNullOrWhiteSpace(customerType) &&
            string.IsNullOrWhiteSpace(orderType) &&
            string.IsNullOrWhiteSpace(dueStatus))
            return null;

        return JsonSerializer.Serialize(new
        {
            customerType,
            orderType,
            dueStatus,
        });
    }

    private static void FillRuleExprLabels(AdoS0PriorityRule item)
    {
        if (string.IsNullOrWhiteSpace(item.RuleExpr)) return;
        try
        {
            var doc = JsonSerializer.Deserialize<JsonElement>(item.RuleExpr);
            if (doc.TryGetProperty("customerType", out var ct)) item.CustomerTypeLabel = ct.GetString();
            if (doc.TryGetProperty("orderType",    out var ot)) item.OrderTypeLabel    = ot.GetString();
            if (doc.TryGetProperty("dueStatus",    out var ds)) item.DueStatusLabel    = ds.GetString();
        }
        catch { /* 忽略格式错误的历史数据 */ }
    }
}