Chart details draft (#4)

* Add logo

* Refactor out structs

* Data layer context-awareness

* Mod

* Data layer improvements

* Progress

* Progress

* Progress

* Figured the time format shorter

* Statuses colors

* Sticky URL

* Calculate some diffs inside

* Separate checks

* Scrap gofmt

* Skip custom test in GH

* Shows some colorful diff

pkg/dashboard/api.go

@@ -2,17 +2,33 @@ package dashboard
 
 import (
 	"embed"
+	"errors"
 	"github.com/gin-gonic/gin"
 	log "github.com/sirupsen/logrus"
 	"net/http"
 	"os"
 	"path"
+	"strconv"
 )
 
 //go:embed static/*
 var staticFS embed.FS
 
-func newRouter(abortWeb ControlChan, data DataLayer) *gin.Engine {
+func errorHandler(c *gin.Context) {
+	c.Next()
+
+	errs := ""
+	for _, err := range c.Errors {
+		log.Debugf("Error: %s", err)
+		errs += err.Error() + "\n"
+	}
+
+	if errs != "" {
+		c.String(http.StatusInternalServerError, errs)
+	}
+}
+
+func NewRouter(abortWeb ControlChan, data DataLayer) *gin.Engine {
 	var api *gin.Engine
 	if os.Getenv("DEBUG") == "" {
 		api = gin.New()
@@ -21,6 +37,84 @@ func newRouter(abortWeb ControlChan, data DataLayer) *gin.Engine {
 		api = gin.Default()
 	}
 
+	api.Use(errorHandler)
+	configureStatic(api)
+
+	configureRoutes(abortWeb, data, api)
+	return api
+}
+
+func configureRoutes(abortWeb ControlChan, data DataLayer, api *gin.Engine) {
+	// server shutdown handler
+	api.DELETE("/", func(c *gin.Context) {
+		abortWeb <- struct{}{}
+	})
+
+	api.GET("/api/helm/charts", func(c *gin.Context) {
+		res, err := data.ListInstalled()
+		if err != nil {
+			_ = c.AbortWithError(http.StatusInternalServerError, err)
+			return
+		}
+		c.IndentedJSON(http.StatusOK, res)
+	})
+
+	api.GET("/api/kube/contexts", func(c *gin.Context) {
+		res, err := data.ListContexts()
+		if err != nil {
+			_ = c.AbortWithError(http.StatusInternalServerError, err)
+			return
+		}
+		c.IndentedJSON(http.StatusOK, res)
+	})
+
+	api.GET("/api/helm/charts/history", func(c *gin.Context) {
+		cName := c.Query("chart")
+		cNamespace := c.Query("namespace")
+		if cName == "" {
+			_ = c.AbortWithError(http.StatusBadRequest, errors.New("missing required query string parameter: chart"))
+			return
+		}
+
+		res, err := data.ChartHistory(cNamespace, cName)
+		if err != nil {
+			_ = c.AbortWithError(http.StatusInternalServerError, err)
+			return
+		}
+		c.IndentedJSON(http.StatusOK, res)
+	})
+
+	api.GET("/api/helm/charts/manifest/diff", func(c *gin.Context) {
+		cName := c.Query("chart")
+		cNamespace := c.Query("namespace")
+		if cName == "" {
+			_ = c.AbortWithError(http.StatusBadRequest, errors.New("missing required query string parameter: chart"))
+			return
+		}
+
+		cRev1, err := strconv.Atoi(c.Query("revision1"))
+		if err != nil {
+			_ = c.AbortWithError(http.StatusInternalServerError, err)
+			return
+		}
+
+		cRev2, err := strconv.Atoi(c.Query("revision2"))
+		if err != nil {
+			_ = c.AbortWithError(http.StatusInternalServerError, err)
+			return
+		}
+
+		res, err := data.RevisionManifestsDiff(cNamespace, cName, cRev1, cRev2)
+		if err != nil {
+			_ = c.AbortWithError(http.StatusInternalServerError, err)
+			return
+		}
+		c.IndentedJSON(http.StatusOK, res)
+	})
+
+}
+
+func configureStatic(api *gin.Engine) {
 	fs := http.FS(staticFS)
 
 	// local dev speed-up
@@ -48,29 +142,4 @@ func newRouter(abortWeb ControlChan, data DataLayer) *gin.Engine {
 			c.FileFromFS(c.Request.URL.Path, fs)
 		})
 	}
-
-	// server shutdown handler
-	api.DELETE("/", func(c *gin.Context) {
-		abortWeb <- struct{}{}
-	})
-
-	api.GET("/api/helm/charts", func(c *gin.Context) {
-		res, err := data.ListInstalled()
-		if err != nil {
-			_ = c.AbortWithError(http.StatusInternalServerError, err)
-			return
-		}
-		c.IndentedJSON(http.StatusOK, res)
-	})
-
-	api.GET("/api/kube/contexts", func(c *gin.Context) {
-		res, err := data.ListContexts()
-		if err != nil {
-			_ = c.AbortWithError(http.StatusInternalServerError, err)
-			return
-		}
-		c.IndentedJSON(http.StatusOK, res)
-	})
-
-	return api
 }