using New.Application.Worklist;

namespace New.Api.Contracts;

/// <summary>
/// Builds the presentation-only `actions`/`seams` blocks on top of a
/// CaseDetail read model. This is deliberately New.Api's job, not the
/// resolver's or either source's - it's about which endpoints exist, which
/// is an API-shape concern, not a data-source concern.
/// </summary>
internal static class CaseDetailResponseFactory
{
    public static CaseDetailResponse From(CaseDetail detail)
    {
        var actions = detail.Origin == WorklistOrigin.Legacy
            ? BuildLegacyActions(detail.LegacyAanvraagId!.Value)
            : BuildOwnedActions(detail.RegistrationApplicationId!.Value);

        var seams = detail.Origin == WorklistOrigin.Legacy
            ? new Dictionary<string, string?> { ["aanvrager"] = "legacy-backend", ["procestijdlijn"] = null }
            : new Dictionary<string, string?> { ["aanvrager"] = "owned", ["procestijdlijn"] = "case-framework-timeline" };

        return new CaseDetailResponse(
            detail.Origin.ToString(),
            detail.LegacyAanvraagId,
            detail.RegistrationApplicationId,
            detail.Surname,
            detail.Initials,
            detail.Bsn,
            AddressResponse.From(detail.Address),
            detail.Email,
            detail.Phone,
            detail.PreferredChannel,
            detail.DiplomaCode,
            detail.DiplomaCountryOfIssue,
            detail.DiplomaIssuedOn,
            detail.ReceivedOn,
            AssessmentResponse.From(detail.Assessment),
            detail.ProcessStatus,
            detail.LastModifiedAt,
            actions,
            seams);
    }

    private static CaseDetailActions BuildLegacyActions(int aanvraagId) => new(
        EditApplicantDetails: new ActionLink("writeThrough", $"/api/worklist/legacy/{aanvraagId}/details"),
        RecordAssessment: new ActionLink("redirect", $"/legacy/aanvraag/{aanvraagId}/beoordeling"),
        TakeOwnership: new ActionLink("transition", $"/api/worklist/legacy/{aanvraagId}/take-ownership"));

    private static CaseDetailActions BuildOwnedActions(Guid registrationApplicationId) => new(
        EditApplicantDetails: new ActionLink("owned", $"/api/worklist/owned/{registrationApplicationId}/details"),
        RecordAssessment: new ActionLink("owned", $"/api/worklist/owned/{registrationApplicationId}/assessment"),
        ReleaseOwnership: new ActionLink("transition", $"/api/worklist/owned/{registrationApplicationId}/ownership"));
}