using System.Collections.Generic;
using System.Text.Json.Serialization;

namespace PayRollBLL.SAPPaySlip.Client
{
    /// <summary>
    /// Deserialisation target for the SAP OData v2 JSON error envelope.
    ///
    /// SAP returns this structure for any non-2xx response from ZPY_PAYSLIP_SRV:
    /// {
    ///   "error": {
    ///     "code": "HTTP/400",
    ///     "message": { "lang": "EN", "value": "Employee not found." },
    ///     "innererror": {
    ///       "transactionid": "ABCD1234",
    ///       "errordetails": [
    ///         { "code": "/ZPY/PAYSLIP/001", "message": "...", "severity": "error" }
    ///       ]
    ///     }
    ///   }
    /// }
    /// </summary>
    internal sealed class SapODataErrorResponse
    {
        [JsonPropertyName("error")]
        public SapODataError? Error { get; set; }
    }

    internal sealed class SapODataError
    {
        [JsonPropertyName("code")]
        public string? Code { get; set; }

        [JsonPropertyName("message")]
        public SapODataErrorMessage? Message { get; set; }

        [JsonPropertyName("innererror")]
        public SapODataInnerError? InnerError { get; set; }
    }

    internal sealed class SapODataErrorMessage
    {
        [JsonPropertyName("lang")]
        public string? Lang { get; set; }

        [JsonPropertyName("value")]
        public string? Value { get; set; }
    }

    internal sealed class SapODataInnerError
    {
        [JsonPropertyName("transactionid")]
        public string? TransactionId { get; set; }

        [JsonPropertyName("errordetails")]
        public List<SapODataErrorDetail>? ErrorDetails { get; set; }
    }

    internal sealed class SapODataErrorDetail
    {
        [JsonPropertyName("code")]
        public string? Code { get; set; }

        [JsonPropertyName("message")]
        public string? Message { get; set; }

        [JsonPropertyName("severity")]
        public string? Severity { get; set; }
    }
}