Initial commit

rules/interface.go

@@ -0,0 +1,49 @@
+package rules
+
+import (
+	"fmt"
+	"log"
+
+	"git.beisel.it/florian/hostname-service/db"
+)
+
+type HostnameRule interface {
+	Generate(params map[string]interface{}) (string, []byte, error)
+	Insert(category string, hostname string, paramsJSON []byte) error
+	Update(category string, oldhostname string, hostname string, paramsJSON []byte) error
+}
+
+type BaseRule struct{}
+
+func (br *BaseRule) baseInsert(category string, hostname string, paramsJSON []byte) error {
+	exists, err := db.HostnameExists(category, hostname)
+	if err != nil {
+		return fmt.Errorf("error checking existence of hostname: %v", err.Error())
+	}
+	if exists {
+		return fmt.Errorf("hostname %s does not exist in category %s", hostname, category)
+	}
+	err = db.InsertHostname(category, hostname, paramsJSON)
+	if err != nil {
+		log.Printf("Error inserting hostname into DB: %v", err)
+		return err
+	}
+	return nil
+}
+
+func (br *BaseRule) baseUpdate(category string, oldhostname string, hostname string, paramsJSON []byte) error {
+	exists, err := db.HostnameExists(category, hostname)
+	if err != nil {
+		return fmt.Errorf("error checking existence of hostname: %v", err.Error())
+	}
+	if !exists {
+		return fmt.Errorf("hostname %s does not exist in category %s", oldhostname, category)
+	}
+
+	err = db.UpdateHostname(category, oldhostname, hostname, paramsJSON)
+	if err != nil {
+		log.Printf("Error inserting hostname into DB: %v", err)
+		return err
+	}
+	return nil
+}

rules/notebook.go

@@ -0,0 +1,93 @@
+package rules
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"log"
+
+	"git.beisel.it/florian/hostname-service/db"
+	// other imports if necessary
+)
+
+type NotebookRule struct {
+	BaseRule
+	OrgUnit  string `json:"OrgUnit"`
+	Location string `json:"Location"`
+	Number   int    `json:"Number"`
+}
+
+type NotebookRuleInput struct {
+	OrgUnit  string `json:"OrgUnit"`
+	Location string `json:"Location"`
+}
+
+// Ensure that NotebookRule implements HostnameRule interface
+var _ HostnameRule = &NotebookRule{}
+
+func (nr *NotebookRule) Generate(params map[string]interface{}) (string, []byte, error) {
+	var ok bool
+
+	// Get the orgUnit (IDE)
+	if nr.OrgUnit, ok = params["OrgUnit"].(string); !ok {
+		return "", nil, errors.New("OrgUnit parameter is required and must be a string")
+	}
+
+	// Get the location (HEN)
+	if nr.Location, ok = params["Location"].(string); !ok {
+		return "", nil, errors.New("location parameter is required and must be a string")
+	}
+
+	// Get last used number from the database and increment it
+	maxNumber, err := db.GetMaxNumberForCategory("notebook")
+	if err != nil {
+		return "", nil, err
+	}
+
+	newNumber := 1
+	if maxNumber >= 1 {
+		newNumber = int(maxNumber) + 1
+	}
+
+	nr.Number = newNumber
+
+	// Generate the hostname (orgUnit + Location + "NB" + Number)
+	hostname := fmt.Sprintf("%s%sNB%04d", nr.OrgUnit, nr.Location, nr.Number)
+
+	// Store the generated hostname in the database
+	// JSON parameters can be stored by marshalling the params map
+	paramsJSON, err := json.Marshal(nr)
+	if err != nil {
+		log.Printf("Error converting Category Struct to JSON: %v", err)
+		return "", nil, err
+	}
+
+	// Return the generated hostname and marshaled parameters
+	return hostname, paramsJSON, nil
+}
+
+// @Summary			Generate hostname for category "notebook"
+// @Description		Generates a hostname for a notebook based on dynamic rules.
+// @ID				insert-notebook-hostname
+// @Accept			json
+// @Produce			json
+// @Tags			Generating Hostnames
+// @Param			body	body		NotebookRuleInput	true	"Input data to generate hostname"
+// @Success			200		{string}	string				"Hostname"
+// @Router			/api/notebook [post]
+func (nr *NotebookRule) Insert(category string, hostname string, paramsJSON []byte) error {
+	return nr.baseInsert(category, hostname, paramsJSON)
+}
+
+// @Summary			Update hostname for category "notebook"
+// @Description		Generates a new hostname for a notebook based on dynamic rules.
+// @ID				update-notebook-hostname
+// @Accept			json
+// @Produce			json
+// @Tags			Generating Hostnames
+// @Param			body	body		NotebookRuleInput	true	"Input data to generate hostname"
+// @Success			200		{string}	string				"Hostname"
+// @Router			/api/notebook [put]
+func (nr *NotebookRule) Update(category string, oldhostname string, hostname string, paramsJSON []byte) error {
+	return nr.baseUpdate(category, oldhostname, hostname, paramsJSON)
+}