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from opentelemetry.trace import SpanKind
from opentelemetry.trace.span import SpanContext

import elasticapm.conf.constants as constants
from elasticapm.utils.disttracing import TraceParent, TracingOptions


def get_traceparent(otel_spancontext: SpanContext) -> TraceParent:
    """
    Create an elastic TraceParent object from an opentelemetry SpanContext
    """
    trace_id = None
    span_id = None
    is_sampled = False
    if otel_spancontext and otel_spancontext.is_valid:
        trace_id = otel_spancontext.trace_id
        span_id = otel_spancontext.span_id
        is_sampled = otel_spancontext.trace_flags.sampled
        tracestate = otel_spancontext.trace_state
    if trace_id:
        traceparent = TraceParent(
            constants.TRACE_CONTEXT_VERSION,
            "%032x" % trace_id,
            "%016x" % span_id,
            TracingOptions(recorded=is_sampled),
            tracestate=tracestate.to_header(),
        )
        return traceparent
    else:
        return None


def get_span_kind(kind: SpanKind) -> str:
    """
    Converts a SpanKind to the string representation
    """
    if kind == SpanKind.CLIENT:
        return "CLIENT"
    elif kind == SpanKind.CONSUMER:
        return "CONSUMER"
    elif kind == SpanKind.INTERNAL:
        return "INTERNAL"
    elif kind == SpanKind.PRODUCER:
        return "PRODUCER"
    elif kind == SpanKind.SERVER:
        return "SERVER"
    else:
        return "INTERNAL"