From 3747959195b6194182dec4600176e168fc866c7a Mon Sep 17 00:00:00 2001
From: Jan Bader <darth.bader@darthbader.de>
Date: Wed, 14 Apr 2021 16:17:28 +0200
Subject: [PATCH] cli implemented supporting set_outpu_voltage and help only
 yet

---
 lib/eseries.c |  34 +++++++++++++++++
 lib/eseries.h |   4 +-
 main.c        | 103 +++++++++++++++++++++++++++++++++++++++++++++++++-
 3 files changed, 139 insertions(+), 2 deletions(-)

diff --git a/lib/eseries.c b/lib/eseries.c
index 444941d..900bedd 100644
--- a/lib/eseries.c
+++ b/lib/eseries.c
@@ -36,6 +36,40 @@ ESeriesMaxValue get_E_MAX(ESeries E_series) {
     return output;
 }
 
+ESeries get_E_Series(int number) {
+
+    ESeries output;
+
+    switch (number) {
+        case 3:
+            output = E3;
+            break;
+        case 6:
+            output = E6;
+            break;
+        case 12:
+            output = E12;
+            break;
+        case 24:
+            output = E24;
+            break;
+        case 48:
+            output = E48;
+            break;
+        case 96:
+            output = E96;
+            break;
+        case 192:
+            output = E192;
+            break;
+        default:
+            output = E0;
+            break;
+    }
+
+    return output;
+}
+
 double round_to_E_series (double continuous_value, ESeries E_series) {
 
     /*
diff --git a/lib/eseries.h b/lib/eseries.h
index 49e9bdb..c49eb6d 100644
--- a/lib/eseries.h
+++ b/lib/eseries.h
@@ -22,11 +22,13 @@ double E192_values[192] = { 1.00, 1.01, 1.02, 1.04, 1.05, 1.06, 1.07, 1.09, 1.10
 
 double *E_values[7] = {E3_values, E6_values, E12_values, E24_values, E48_values, E96_values, E192_values};
 
-typedef enum {E3, E6, E12, E24, E48, E96, E192} ESeries;
+typedef enum { E0, E3, E6, E12, E24, E48, E96, E192} ESeries;
 typedef enum {E_NIL=0, E3_MAX=2, E6_MAX=5, E12_MAX=11, E24_MAX=23, E48_MAX=47, E96_MAX=95, E192_MAX=191} ESeriesMaxValue;
 
 extern ESeriesMaxValue get_E_MAX(ESeries E_series);
 
+extern ESeries get_E_Series(int number);
+
 extern double round_to_E_series (double continuous_value, ESeries E_series);
 
 #endif /*ESERIES_H*/
diff --git a/main.c b/main.c
index c377bc1..e7da47b 100644
--- a/main.c
+++ b/main.c
@@ -1,6 +1,7 @@
 /*main.c*/
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "lib/max_functions.h"
 
@@ -10,6 +11,106 @@ static int state=0;
 int main(int argc, char *argv[])
 {
     if (argc == 1)
-        printf("\n");
+        printf("max668_calc: Usage: max668_calc set_output_voltage -E [E series] -V [voltage]\n");
+
+    for (int i = 0; i < argc; i++) {
+        if (strcmp(argv[i], "-h") == 0) {
+            printf("max668_calc: Usage: max668_calc set_output_voltage -E [E series] -V [voltage]\n");
+            return EXIT_SUCCESS;
+        }
+    }
+
+    int command = 0;
+
+    for (int i = 1; i < argc; i++) {
+        if (strcmp(argv[i], "set_output_voltage") == 0) {
+
+            command = 1;
+        }
+        else if ((strchr(argv[i], '-') == NULL) && (strchr(argv[i-1], '-') == NULL)) {
+
+            printf("max668_calc: Usage: max668_calc set_output_voltage -E [E series] -V [voltage]\n");
+            return EXIT_SUCCESS;
+        }
+    }
+
+    double voltage = 0.0;
+    ESeries e_series;
+    char input[10];
+    int read_number;
+    int temp_result;
+
+    switch (command) {
+
+        case 1:
+
+            for (int i = 0; i < argc; i++) {
+
+                if (argv[i][0] == '-') {
+
+                    if (strcmp(argv[i], "-V") == 0) {
+
+                        if(strlen(argv[i+1]) > 9) {
+
+                            printf("max668_calc: Malformed voltage format.");
+                            return EXIT_FAILURE;
+                        }
+
+                        strncpy(argv[i+1], input, strlen(argv[i+1]));
+                        input[strlen(argv[i+1])+1] = '\0';
+
+                        if (input[strlen(input)] == 'V') {
+
+                            input[strlen(input)] = '\0';
+                        }
+
+                        temp_result = sscanf(input, "%lf", &voltage);
+
+                        if (temp_result == 0) {
+                            printf("max668_calc: Malformed voltage format.");
+                            return EXIT_FAILURE;
+                        }
+                    }
+
+                    else if (strcmp(argv[i], "-E") == 0) {
+
+                        if(strlen(argv[i+1]) > 9) {
+
+                            printf("max668_calc: Malformed E series format.");
+                            return EXIT_FAILURE;
+                        }
+
+                        strncpy(argv[i+1], input, strlen(argv[i+1]));
+                        input[strlen(argv[i+1])+1] = '\0';
+
+                        if (input[0] == 'E') {
+
+                            strcpy(input, &input[1]);
+                        }
+
+                        temp_result = sscanf(input, "%i", &read_number);
+
+                        if (temp_result == 0) {
+                            printf("max668_calc: Malformed E-Series format.");
+                            return EXIT_FAILURE;
+                        }
+
+                        e_series = get_E_Series(read_number);
+                    }
+
+                    else {
+                        printf("max668_calc: Unknown option. Use max668_calc -h\n");
+                        return EXIT_FAILURE;
+                    }
+                }
+            }
+            set_output_voltage(voltage, e_series);
+            break;
+
+        default:
+            printf("max668_calc: Command not found. Use max668_calc -h\n");
+            break;
+    }
+
     return EXIT_SUCCESS;
 }