chore: Organize code in shorter files. (#691)

* chore: Organize code in shorter files.

* feat: Change link to documentation in a log output

internal/api/agent.go

@@ -0,0 +1,43 @@
+package api
+
+import (
+	"context"
+
+	"github.com/polygonid/sh-id-platform/internal/core/ports"
+	"github.com/polygonid/sh-id-platform/internal/log"
+)
+
+// Agent is the controller to fetch credentials from mobile
+func (s *Server) Agent(ctx context.Context, request AgentRequestObject) (AgentResponseObject, error) {
+	if request.Body == nil || *request.Body == "" {
+		log.Debug(ctx, "agent empty request")
+		return Agent400JSONResponse{N400JSONResponse{"cannot proceed with an empty request"}}, nil
+	}
+
+	basicMessage, mediatype, err := s.packageManager.Unpack([]byte(*request.Body))
+	if err != nil {
+		log.Debug(ctx, "agent bad request", "err", err, "body", *request.Body)
+		return Agent400JSONResponse{N400JSONResponse{"cannot proceed with the given request"}}, nil
+	}
+
+	req, err := ports.NewAgentRequest(basicMessage)
+	if err != nil {
+		log.Error(ctx, "agent parsing request", "err", err)
+		return Agent400JSONResponse{N400JSONResponse{err.Error()}}, nil
+	}
+
+	agent, err := s.claimService.Agent(ctx, req, mediatype)
+	if err != nil {
+		log.Error(ctx, "agent error", "err", err)
+		return Agent400JSONResponse{N400JSONResponse{err.Error()}}, nil
+	}
+	return Agent200JSONResponse{
+		Body:     agent.Body,
+		From:     agent.From,
+		Id:       agent.ID,
+		ThreadID: agent.ThreadID,
+		To:       agent.To,
+		Typ:      string(agent.Typ),
+		Type:     string(agent.Type),
+	}, nil
+}