resize picture based on specified dimensions

config.go

@@ -4,13 +4,18 @@ import (
 	"encoding/json"
 	"fmt"
 	"os"
+	"strconv"
+	"strings"
 )
 
 type Config struct {
-	Method    string `json:method`
-	OutputDir string `json:outputdir`
-	InputDir  string `json:inputdir`
-	BaseImage string `json:baseimage`
+	Method       string `json:method`
+	OutputDir    string `json:outputdir`
+	InputDir     string `json:inputdir`
+	BaseImage    string `json:baseimage`
+	Dimensions   string `json:dimensions`
+	OutputWidth  int    `json:output_width`
+	OutputHeight int    `json:output_height`
 }
 
 // loads configuration values from json file
@@ -27,5 +32,14 @@ func (c *Config) LoadConfigFromFile(filePath string) {
 	fmt.Println(configuration.OutputDir)
 }
 
+// Set output file dimensions using string symbol (<width>x<height>)
+func (c *Config) SetOutputDimensions() {
+	split := strings.Split(c.Dimensions, "x")
+	width, _ := strconv.Atoi(split[0])
+	height, _ := strconv.Atoi(split[1])
+	c.OutputWidth = width
+	c.OutputHeight = height
+}
+
 // global register to acccess configuration values
 var ConfigRegister Config