using System.Collections.Generic;
using System.Text.Json.Serialization;
using FrameworkDAL.DTO.Workflow;

namespace FrameworkDAL.CustomCode.EntityViewer.DTOs
{
    // ============================================================
    // EntityViewerResultDTO — GetEntityViewer's composite response.
    // EntityData is the unwrapped Body of whatever the resolved MWEBSERVICE
    // GET call returned (e.g. GetTimeSlip's payload, envelope stripped) —
    // shape varies per entity, so it stays untyped. Workflow/Enrichment are
    // additive and can be empty when the entity has no workflow instance /
    // no OnDemand qualifiers configured — never block EntityData from returning.
    // ============================================================
    public class EntityViewerResultDTO
    {
        public int     ObjectTypeId { get; set; }
        public int     ObjectId     { get; set; }
        public string? EntityCode   { get; set; }

        public object? EntityData   { get; set; }

        // Only present when EntityData is null — explains exactly why (resolved URL,
        // status code, raw response body). Omitted entirely on success so a working
        // call isn't cluttered with a diagnostics block nobody needs to look at.
        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
        public EntityDataDiagnosticsDTO? EntityDataDiagnostics { get; set; }

        public IReadOnlyList<WorkflowStatusDTO> Workflow { get; set; }
            = new List<WorkflowStatusDTO>();

        public IReadOnlyDictionary<string, object?> Enrichment { get; set; }
            = new Dictionary<string, object?>();
    }

    // ============================================================
    // EntityDataDiagnosticsDTO — exactly what GetEntityViewer did (or tried to do)
    // to resolve EntityData, so a null EntityData is always explained, never silent.
    // ============================================================
    public class EntityDataDiagnosticsDTO
    {
        /// <summary>MWEBSERVICE.WEBSERVICEID matched for (ObjectTypeId, METHODTYPE=0/GET). Null if none.</summary>
        public int?    WebServiceId    { get; set; }

        /// <summary>Gateway/base host used to substitute {BaseURI} (from X-Forwarded-Host or Request.Host).</summary>
        public string? RequestHost     { get; set; }

        /// <summary>The fully-resolved URL that was actually called (after {BaseURI}/{param} substitution).</summary>
        public string? ResolvedUrl     { get; set; }

        /// <summary>HTTP status code returned by the resolved URL. Null if the call was never made.</summary>
        public int?    StatusCode      { get; set; }

        public bool    Success         { get; set; }

        /// <summary>Human-readable reason EntityData is null — e.g. "No GET MWEBSERVICE binding for
        /// ObjectTypeId=-1399999744", "HTTP 404 from resolved URL", or the caught exception's message.
        /// Null when Success is true.</summary>
        public string? Error           { get; set; }

        /// <summary>Raw response body from the resolved URL, truncated to 2000 chars — present even on
        /// failure (e.g. a 404 page's body) so the actual upstream response is visible, not just the code.</summary>
        public string? RawResponseBody { get; set; }
    }
}