626 lines
17 KiB
Plaintext
626 lines
17 KiB
Plaintext
package main
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"strings"
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"text/template"
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"time"
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"gopkg.in/yaml.v2"
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)
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// ServiceConfig represents the main configuration structure
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type ServiceConfig struct {
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Services map[string]Service `yaml:"services"`
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Global GlobalConfig `yaml:"global,omitempty"`
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}
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// GlobalConfig contains global configuration
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type GlobalConfig struct {
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ModuleName string `yaml:"module_name"`
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OutputDir string `yaml:"output_dir"`
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PackagePrefix string `yaml:"package_prefix"`
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EnableSwagger bool `yaml:"enable_swagger"`
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EnableLogging bool `yaml:"enable_logging"`
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EnableMetrics bool `yaml:"enable_metrics"`
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}
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// Service represents individual service configuration
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type Service struct {
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Name string `yaml:"name"`
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Category string `yaml:"category"`
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Package string `yaml:"package"`
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Description string `yaml:"description"`
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BaseURL string `yaml:"base_url"`
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Timeout int `yaml:"timeout"`
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RetryCount int `yaml:"retry_count"`
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Endpoints map[string]Endpoint `yaml:"endpoints"`
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Middleware []string `yaml:"middleware,omitempty"` // FIXED: Changed to []string
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Dependencies []string `yaml:"dependencies,omitempty"` // FIXED: Changed to []string
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}
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// Endpoint represents endpoint configuration
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type Endpoint struct {
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Methods []string `yaml:"methods"`
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GetPath string `yaml:"get_path,omitempty"`
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PostPath string `yaml:"post_path,omitempty"`
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PutPath string `yaml:"put_path,omitempty"`
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DeletePath string `yaml:"delete_path,omitempty"`
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PatchPath string `yaml:"patch_path,omitempty"`
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Model string `yaml:"model"`
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ResponseModel string `yaml:"response_model"`
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Description string `yaml:"description"`
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Summary string `yaml:"summary"`
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Tags []string `yaml:"tags"`
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RequireAuth bool `yaml:"require_auth"`
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RateLimit int `yaml:"rate_limit,omitempty"`
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CacheEnabled bool `yaml:"cache_enabled"`
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CacheTTL int `yaml:"cache_ttl,omitempty"`
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CustomHeaders map[string]string `yaml:"custom_headers,omitempty"` // ADDED: Missing field
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}
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// TemplateData holds data for generating handlers
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type TemplateData struct {
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ServiceName string
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ServiceLower string
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ServiceUpper string
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Category string
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Package string
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Description string
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BaseURL string
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Timeout int
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RetryCount int
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Endpoints []EndpointData
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Timestamp string
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ModuleName string
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HasValidator bool
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HasLogger bool
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HasMetrics bool
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HasSwagger bool
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HasAuth bool
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HasCache bool
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Dependencies []string // FIXED: Changed to []string
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Middleware []string // FIXED: Changed to []string
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GlobalConfig GlobalConfig
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}
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// EndpointData represents processed endpoint data
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type EndpointData struct {
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Name string
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NameLower string
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NameUpper string
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NameCamel string
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Methods []string
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GetPath string
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PostPath string
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PutPath string
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DeletePath string
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PatchPath string
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Model string
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ResponseModel string
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Description string
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Summary string
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Tags []string
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HasGet bool
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HasPost bool
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HasPut bool
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HasDelete bool
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HasPatch bool
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RequireAuth bool
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RateLimit int
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CacheEnabled bool
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CacheTTL int
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PathParams []string
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QueryParams []string
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RequiredFields []string
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OptionalFields []string
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CustomHeaders map[string]string
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}
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// Template remains the same as before...
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const handlerTemplate = `
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// Code generated by generate-dynamic-handler.go; DO NOT EDIT.
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// Generated at: {{.Timestamp}}
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// Service: {{.ServiceName}} ({{.Category}})
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// Description: {{.Description}}
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package handlers
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import (
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"context"
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"net/http"
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"time"
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"{{.ModuleName}}/internal/config"
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"{{.ModuleName}}/internal/models/reference"
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"{{.ModuleName}}/pkg/logger"
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"github.com/gin-gonic/gin"
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"github.com/go-playground/validator/v10"
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"github.com/google/uuid"
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)
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// {{.ServiceName}}Service defines {{.ServiceName}} service interface
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type {{.ServiceName}}Service interface {
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{{range .Endpoints}}
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{{if .HasGet}}
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Get{{.Name}}(ctx context.Context{{range .PathParams}}, {{.}} string{{end}}) (*reference.{{.Name}}Data, error)
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{{end}}
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{{if .HasPost}}
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Create{{.Name}}(ctx context.Context, req *reference.{{.Model}}) (*reference.{{.Name}}Data, error)
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{{end}}
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{{if .HasPut}}
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Update{{.Name}}(ctx context.Context{{range .PathParams}}, {{.}} string{{end}}, req *reference.{{.Model}}) (*reference.{{.Name}}Data, error)
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{{end}}
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{{if .HasDelete}}
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Delete{{.Name}}(ctx context.Context{{range .PathParams}}, {{.}} string{{end}}) error
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{{end}}
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{{end}}
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}
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// {{.ServiceName}}Handler handles {{.ServiceName}} BPJS services
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type {{.ServiceName}}Handler struct {
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service {{.ServiceName}}Service
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validator *validator.Validate
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logger logger.Logger
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config config.BpjsConfig
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}
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// {{.ServiceName}}HandlerConfig contains configuration for {{.ServiceName}}Handler
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type {{.ServiceName}}HandlerConfig struct {
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BpjsConfig config.BpjsConfig
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Logger logger.Logger
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Validator *validator.Validate
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}
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// New{{.ServiceName}}Handler creates a new {{.ServiceName}}Handler
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func New{{.ServiceName}}Handler(cfg {{.ServiceName}}HandlerConfig, service {{.ServiceName}}Service) *{{.ServiceName}}Handler {
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return &{{.ServiceName}}Handler{
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service: service,
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validator: cfg.Validator,
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logger: cfg.Logger,
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config: cfg.BpjsConfig,
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}
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}
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{{range .Endpoints}}
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{{if .HasGet}}
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// Get{{.NameUpper}} retrieves {{.Name}} data
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{{if $.HasSwagger}}
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// @Summary Get {{.Name}} data
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// @Description {{.Description}}
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// @Tags {{join .Tags ","}}
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// @Accept json
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// @Produce json
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{{if .RequireAuth}}
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// @Security ApiKeyAuth
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{{end}}
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{{range .PathParams}}
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// @Param {{.}} path string true "{{.}}"
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{{end}}
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// @Success 200 {object} reference.{{.ResponseModel}}
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// @Failure 400 {object} reference.ErrorResponse
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// @Failure 500 {object} reference.ErrorResponse
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// @Router {{.GetPath}} [get]
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{{end}}
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func (h *{{$.ServiceName}}Handler) Get{{.Name}}(c *gin.Context) {
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ctx, cancel := context.WithTimeout(c.Request.Context(), {{$.Timeout}}*time.Second)
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defer cancel()
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// Generate request ID if not present
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requestID := c.GetHeader("X-Request-ID")
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if requestID == "" {
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requestID = uuid.New().String()
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c.Header("X-Request-ID", requestID)
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}
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{{if $.HasLogger}}
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h.logger.Info("Processing Get{{.Name}} request", map[string]interface{}{
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"request_id": requestID,
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"endpoint": "{{.GetPath}}",
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{{range .PathParams}}
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"{{.}}": c.Param("{{.}}"),
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{{end}}
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})
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{{end}}
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// Extract path parameters
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{{range .PathParams}}
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{{.}} := c.Param("{{.}}")
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if {{.}} == "" {
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{{if $.HasLogger}}
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h.logger.Error("Missing required parameter {{.}}", map[string]interface{}{
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"request_id": requestID,
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})
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{{end}}
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c.JSON(http.StatusBadRequest, reference.ErrorResponse{
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Status: "error",
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Message: "Missing required parameter {{.}}",
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RequestID: requestID,
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})
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return
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}
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{{end}}
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// Call service method
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var response reference.{{.ResponseModel}}
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{{if .PathParams}}
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result, err := h.service.Get{{.Name}}(ctx{{range .PathParams}}, {{.}}{{end}})
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{{else}}
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result, err := h.service.Get{{.Name}}(ctx)
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{{end}}
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if err != nil {
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{{if $.HasLogger}}
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h.logger.Error("Failed to get {{.Name}}", map[string]interface{}{
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"error": err.Error(),
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"request_id": requestID,
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})
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{{end}}
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c.JSON(http.StatusInternalServerError, reference.ErrorResponse{
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Status: "error",
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Message: "Internal server error",
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RequestID: requestID,
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})
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return
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}
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// Ensure response has proper fields
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response.Status = "success"
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response.RequestID = requestID
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response.Data = result
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c.JSON(http.StatusOK, response)
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}
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{{end}}
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{{if .HasPost}}
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// Create{{.NameUpper}} creates new {{.Name}}
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{{if $.HasSwagger}}
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// @Summary Create {{.Name}}
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// @Description {{.Description}}
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// @Tags {{join .Tags ","}}
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// @Accept json
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// @Produce json
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{{if .RequireAuth}}
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// @Security ApiKeyAuth
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{{end}}
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// @Param request body reference.{{.Model}} true "{{.Name}} data"
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// @Success 201 {object} reference.{{.ResponseModel}}
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// @Failure 400 {object} reference.ErrorResponse
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// @Failure 500 {object} reference.ErrorResponse
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// @Router {{.PostPath}} [post]
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{{end}}
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func (h *{{$.ServiceName}}Handler) Create{{.Name}}(c *gin.Context) {
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ctx, cancel := context.WithTimeout(c.Request.Context(), {{$.Timeout}}*time.Second)
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defer cancel()
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requestID := c.GetHeader("X-Request-ID")
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if requestID == "" {
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requestID = uuid.New().String()
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c.Header("X-Request-ID", requestID)
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}
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{{if $.HasLogger}}
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h.logger.Info("Processing Create{{.Name}} request", map[string]interface{}{
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"request_id": requestID,
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})
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{{end}}
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var req reference.{{.Model}}
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if err := c.ShouldBindJSON(&req); err != nil {
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{{if $.HasLogger}}
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h.logger.Error("Invalid request body", map[string]interface{}{
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"error": err.Error(),
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"request_id": requestID,
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})
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{{end}}
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c.JSON(http.StatusBadRequest, reference.ErrorResponse{
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Status: "error",
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Message: "Invalid request body: " + err.Error(),
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RequestID: requestID,
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})
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return
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}
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// Validate request
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if err := h.validator.Struct(&req); err != nil {
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{{if $.HasLogger}}
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h.logger.Error("Validation failed", map[string]interface{}{
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"error": err.Error(),
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"request_id": requestID,
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})
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{{end}}
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c.JSON(http.StatusBadRequest, reference.ErrorResponse{
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Status: "error",
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Message: "Validation failed: " + err.Error(),
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RequestID: requestID,
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})
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return
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}
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// Call service method
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var response reference.{{.ResponseModel}}
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result, err := h.service.Create{{.Name}}(ctx, &req)
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if err != nil {
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{{if $.HasLogger}}
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h.logger.Error("Failed to create {{.Name}}", map[string]interface{}{
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"error": err.Error(),
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"request_id": requestID,
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})
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{{end}}
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c.JSON(http.StatusInternalServerError, reference.ErrorResponse{
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Status: "error",
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Message: "Internal server error",
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RequestID: requestID,
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})
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return
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}
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// Ensure response has proper fields
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response.Status = "success"
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response.RequestID = requestID
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response.Data = result
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c.JSON(http.StatusCreated, response)
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}
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{{end}}
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{{end}}
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`
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func main() {
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if len(os.Args) < 2 {
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printUsage()
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os.Exit(1)
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}
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configFile := os.Args[1]
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var targetService string
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if len(os.Args) > 2 {
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targetService = os.Args[2]
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}
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// Load configuration
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config, err := loadConfig(configFile)
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if err != nil {
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fmt.Printf("❌ Error loading config: %v\n", err)
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os.Exit(1)
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}
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fmt.Println("🚀 Starting BPJS Dynamic Handler Generation...")
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fmt.Printf("📁 Config file: %s\n", configFile)
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if targetService != "" {
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fmt.Printf("🎯 Target service: %s\n", targetService)
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}
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generated := 0
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errors := 0
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// Generate handlers
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for serviceName, service := range config.Services {
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if targetService != "" && serviceName != targetService {
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continue
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}
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fmt.Printf("🔧 Generating handler for service: %s (%s)\n", service.Name, service.Category)
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err := generateHandler(serviceName, service, config.Global)
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if err != nil {
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fmt.Printf("❌ Error generating handler for %s: %v\n", serviceName, err)
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errors++
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continue
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}
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fmt.Printf("✅ Generated handler: %s_handler.go\n", strings.ToLower(serviceName))
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generated++
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}
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// Summary
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fmt.Println("\n📊 Generation Summary:")
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fmt.Printf(" ✅ Successfully generated: %d handlers\n", generated)
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if errors > 0 {
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fmt.Printf(" ❌ Failed: %d handlers\n", errors)
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}
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if generated > 0 {
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fmt.Println("🎉 Generation completed successfully!")
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}
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}
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func printUsage() {
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fmt.Println("BPJS Dynamic Handler Generator")
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fmt.Println()
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fmt.Println("Usage:")
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fmt.Println(" go run generate-dynamic-handler.go <config-file> [service-name]")
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fmt.Println()
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fmt.Println("Examples:")
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fmt.Println(" go run generate-dynamic-handler.go services-config.yaml")
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fmt.Println(" go run generate-dynamic-handler.go services-config.yaml vclaim")
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}
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func loadConfig(filename string) (*ServiceConfig, error) {
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data, err := ioutil.ReadFile(filename)
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if err != nil {
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return nil, fmt.Errorf("failed to read config file: %w", err)
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}
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var config ServiceConfig
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err = yaml.Unmarshal(data, &config)
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if err != nil {
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return nil, fmt.Errorf("failed to parse YAML config: %w", err)
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}
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// Set default values
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if config.Global.ModuleName == "" {
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config.Global.ModuleName = "api-service"
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}
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if config.Global.OutputDir == "" {
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config.Global.OutputDir = "internal/handlers"
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}
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return &config, nil
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}
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func generateHandler(serviceName string, service Service, globalConfig GlobalConfig) error {
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// Prepare template data
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templateData := TemplateData{
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ServiceName: service.Name,
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ServiceLower: strings.ToLower(service.Name),
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ServiceUpper: strings.ToUpper(service.Name),
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Category: service.Category,
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Package: service.Package,
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Description: service.Description,
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BaseURL: service.BaseURL,
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Timeout: getOrDefault(service.Timeout, 30),
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RetryCount: getOrDefault(service.RetryCount, 3),
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Timestamp: time.Now().Format("2006-01-02 15:04:05"),
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ModuleName: globalConfig.ModuleName,
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HasValidator: true,
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HasLogger: globalConfig.EnableLogging,
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HasMetrics: globalConfig.EnableMetrics,
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HasSwagger: globalConfig.EnableSwagger,
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Dependencies: service.Dependencies, // Now []string
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Middleware: service.Middleware, // Now []string
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GlobalConfig: globalConfig,
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}
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// Check for advanced features
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for _, endpoint := range service.Endpoints {
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if endpoint.RequireAuth {
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templateData.HasAuth = true
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}
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if endpoint.CacheEnabled {
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templateData.HasCache = true
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}
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}
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// Process endpoints
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for endpointName, endpoint := range service.Endpoints {
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endpointData := processEndpoint(endpointName, endpoint)
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templateData.Endpoints = append(templateData.Endpoints, endpointData)
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}
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// Create output directory
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outputDir := globalConfig.OutputDir
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if outputDir == "" {
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outputDir = "internal/handlers"
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}
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if err := os.MkdirAll(outputDir, 0755); err != nil {
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return fmt.Errorf("failed to create output directory: %w", err)
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}
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// Generate handler file
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filename := filepath.Join(outputDir, fmt.Sprintf("%s_handler.go", strings.ToLower(serviceName)))
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// Create template with custom functions
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tmpl := template.New("handler").Funcs(template.FuncMap{
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"contains": strings.Contains,
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"join": strings.Join,
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"title": strings.Title,
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"trimPrefix": strings.TrimPrefix,
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})
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tmpl, err := tmpl.Parse(handlerTemplate)
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if err != nil {
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return fmt.Errorf("failed to parse template: %w", err)
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}
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file, err := os.Create(filename)
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if err != nil {
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return fmt.Errorf("failed to create file: %w", err)
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}
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defer file.Close()
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err = tmpl.Execute(file, templateData)
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if err != nil {
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return fmt.Errorf("failed to execute template: %w", err)
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}
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return nil
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}
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func processEndpoint(name string, endpoint Endpoint) EndpointData {
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data := EndpointData{
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Name: strings.Title(name),
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NameLower: strings.ToLower(name),
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NameUpper: strings.ToUpper(name),
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NameCamel: toCamelCase(name),
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Methods: endpoint.Methods,
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GetPath: endpoint.GetPath,
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PostPath: endpoint.PostPath,
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PutPath: endpoint.PutPath,
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DeletePath: endpoint.DeletePath,
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PatchPath: endpoint.PatchPath,
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Model: endpoint.Model,
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ResponseModel: endpoint.ResponseModel,
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Description: endpoint.Description,
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Summary: endpoint.Summary,
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Tags: endpoint.Tags,
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RequireAuth: endpoint.RequireAuth,
|
|
RateLimit: endpoint.RateLimit,
|
|
CacheEnabled: endpoint.CacheEnabled,
|
|
CacheTTL: getOrDefault(endpoint.CacheTTL, 300),
|
|
CustomHeaders: endpoint.CustomHeaders,
|
|
}
|
|
|
|
// Set method flags and extract path parameters
|
|
for _, method := range endpoint.Methods {
|
|
switch strings.ToUpper(method) {
|
|
case "GET":
|
|
data.HasGet = true
|
|
data.PathParams = extractPathParams(endpoint.GetPath)
|
|
case "POST":
|
|
data.HasPost = true
|
|
case "PUT":
|
|
data.HasPut = true
|
|
data.PathParams = extractPathParams(endpoint.PutPath)
|
|
case "DELETE":
|
|
data.HasDelete = true
|
|
data.PathParams = extractPathParams(endpoint.DeletePath)
|
|
case "PATCH":
|
|
data.HasPatch = true
|
|
data.PathParams = extractPathParams(endpoint.PatchPath)
|
|
}
|
|
}
|
|
|
|
return data
|
|
}
|
|
|
|
func extractPathParams(path string) []string {
|
|
if path == "" {
|
|
return nil
|
|
}
|
|
|
|
var params []string
|
|
parts := strings.Split(path, "/")
|
|
for _, part := range parts {
|
|
if strings.HasPrefix(part, ":") {
|
|
params = append(params, strings.TrimPrefix(part, ":"))
|
|
}
|
|
}
|
|
|
|
return params
|
|
}
|
|
|
|
func toCamelCase(str string) string {
|
|
words := strings.FieldsFunc(str, func(c rune) bool {
|
|
return c == '_' || c == '-' || c == ' '
|
|
})
|
|
|
|
if len(words) == 0 {
|
|
return str
|
|
}
|
|
|
|
result := strings.ToLower(words[0])
|
|
for _, word := range words[1:] {
|
|
result += strings.Title(strings.ToLower(word))
|
|
}
|
|
|
|
return result
|
|
}
|
|
|
|
func getOrDefault(value, defaultValue int) int {
|
|
if value == 0 {
|
|
return defaultValue
|
|
}
|
|
return value
|
|
}
|