Aggiunta gestione export csv

.fpm

@@ -0,0 +1,4 @@
+{
+  "productsFile":".\/pm-item-price-default.json",
+  "salesFile":".\/pm-item-sold-count-default.json"
+}

export.csv

@@ -0,0 +1,4 @@
+Nome;Inventario iniziale;Vendite;Prezzo;Componenti
+zainetto;17;0;20.00;
+mozzarrella;16;1;3.00;
+3x2 mozzarelle;non definito;1;6.00;mozzarrella

include/logic.h

@@ -33,13 +33,16 @@ int consumeProductInventory(const char *fname, const char *name, int qty);
 int getCount(const char *fname, const char *name);
 void listSold(const char *fname);
 int addSold(const char *fname, const char *name, int qty);
-int updateSold(const char *fname, const char *name, int qty);
-int deleteSold(const char *fname, const char *name);
+int deleteSold(const char *productsFile, const char *soldFile, const char *name);
+int updateSold(const char *productsFile, const char *soldFile, const char *name, int qty);
 int recordSale(const char *productsFile, const char *soldFile, const char *name, int qty);
 
 /* Entrate */
 double getTotalRevenue(const char *productsFile, const char *soldFile);
 
+/* Export */
+int exportSalesToCsv(const char *productsFile, const char *soldFile, const char *outFile);
+
 /* Config */
 int ensureAppConfig(const char *fname);
 int loadAppConfig(const char *fname);

include/windowsDeclaration.h

@@ -14,6 +14,7 @@ void runAboutWindow();
 void runViewSalesWindow();
 void runViewProductsWindow();
 void runAddProductWindow();
+void runExportCsvWindow();
 void example_window();
 
 #endif

pm-item-price-default.json

@@ -0,0 +1,54 @@
+[
+  {
+    "name":"zainetto",
+    "price":20.0,
+    "stock":15
+  },
+  {
+    "name":"mozzarrella",
+    "price":3.0,
+    "stock":15
+  },
+  {
+    "name":"3x2 mozzarelle",
+    "price":6.0,
+    "bundle":1,
+    "stock":-1,
+    "components":[
+      {
+        "name":"mozzarrella",
+        "qty":3
+      }
+    ]
+  },
+  {
+    "name":"astuccio",
+    "price":10.0,
+    "stock":-1
+  },
+  {
+    "name":"set penne matite",
+    "price":8.0,
+    "stock":30
+  },
+  {
+    "name":"Scuola",
+    "price":50.0,
+    "bundle":1,
+    "stock":-1,
+    "components":[
+      {
+        "name":"zainetto",
+        "qty":1
+      },
+      {
+        "name":"astuccio",
+        "qty":1
+      },
+      {
+        "name":"set penne matite",
+        "qty":2
+      }
+    ]
+  }
+]

pm-item-sold-count-default.json

@@ -0,0 +1,14 @@
+[
+  {
+    "name":"mozzarrella",
+    "sold":1
+  },
+  {
+    "name":"3x2 mozzarelle",
+    "sold":1
+  },
+  {
+    "name":"Scuola",
+    "sold":2
+  }
+]

src/logic.c

@@ -5,6 +5,8 @@
 #include <json-c/json.h>
 
 #include "../include/logic.h"
+#include <stdio.h>
+
 #include "../include/globals.h"
 #include "../include/jsonFile.h"
 
@@ -39,6 +41,90 @@ static int readInventory(json_object *item, int *stock, int *tracked) {
     return 0;
 }
 
+int exportSalesToCsv(const char *productsFile, const char *soldFile, const char *outFile)
+{
+    json_object *products = getProducts(productsFile);
+    json_object *sales = getProducts(soldFile);
+    if (!products || !json_object_is_type(products, json_type_array)) {
+        if (products) json_object_put(products);
+        if (sales) json_object_put(sales);
+        return -1;
+    }
+
+    FILE *f = fopen(outFile, "w");
+    if (!f) {
+        if (products) json_object_put(products);
+        if (sales) json_object_put(sales);
+        return -2;
+    }
+
+    fprintf(f, "Nome;Inventario iniziale;Vendite;Prezzo;Componenti\n");
+
+    int n = json_object_array_length(products);
+    for (int i = 0; i < n; ++i) {
+        json_object *item = json_object_array_get_idx(products, i);
+        json_object *jname = NULL;
+        json_object *jprice = NULL;
+        json_object *jbundle = NULL;
+
+        const char *name = (json_object_object_get_ex(item, "name", &jname) && jname) ? json_object_get_string(jname) : "";
+        double price = (json_object_object_get_ex(item, "price", &jprice) && jprice) ? json_object_get_double(jprice) : 0.0;
+        int isBundle = (json_object_object_get_ex(item, "bundle", &jbundle) && jbundle) ? json_object_get_int(jbundle) : 0;
+
+        /* sold count */
+        int sold = getCount(soldFile, name);
+
+        /* inventory */
+        const char *inv_text = NULL;
+        char inv_buf[64];
+        if (isBundle) {
+            inv_text = "non definito";
+        } else {
+            int stock = -1;
+            json_object *stock_obj = NULL;
+            if (json_object_object_get_ex(item, "stock", &stock_obj) && stock_obj) {
+                stock = json_object_get_int(stock_obj);
+            }
+            if (stock < 0) {
+                inv_text = "non definito";
+            } else {
+                /* initial = current stock + sold */
+                snprintf(inv_buf, sizeof(inv_buf), "%d", stock + sold);
+                inv_text = inv_buf;
+            }
+        }
+
+        /* components */
+        char comp_buf[512];
+        comp_buf[0] = '\0';
+        if (isBundle) {
+            json_object *comp = NULL;
+            if (json_object_object_get_ex(item, "components", &comp) && comp && json_object_is_type(comp, json_type_array)) {
+                int m = json_object_array_length(comp);
+                for (int j = 0; j < m; ++j) {
+                    json_object *c = json_object_array_get_idx(comp, j);
+                    json_object *cjname = NULL;
+                    const char *cname = (json_object_object_get_ex(c, "name", &cjname) && cjname) ? json_object_get_string(cjname) : "";
+                    if (j) strncat(comp_buf, ";", sizeof(comp_buf)-strlen(comp_buf)-1);
+                    strncat(comp_buf, cname ? cname : "", sizeof(comp_buf)-strlen(comp_buf)-1);
+                }
+            }
+        }
+
+        /* write CSV line; escape semicolons in name/comp if needed (simple) */
+        fprintf(f, "%s;%s;%d;%.2f;%s\n",
+                name ? name : "",
+                inv_text,
+                sold,
+                price,
+                comp_buf);
+    }
+
+    fclose(f);
+    if (products) json_object_put(products);
+    if (sales) json_object_put(sales);
+    return 0;
+}
 static void writeInventory(json_object *item, int stock, int tracked) {
     if (!item)
         return;
@@ -267,6 +353,46 @@ static int consumeTree(json_object *products, json_object *item, int qty) {
     return 0;
 }
 
+static int restoreTree(json_object *products, json_object *item, int qty) {
+    if (!products || !item || qty <= 0) return -1;
+
+    if (!isBundleItem(item)) {
+        json_object *jstock = NULL;
+        if (!json_object_object_get_ex(item, "stock", &jstock) || !jstock)
+            return 0;
+        int stock = json_object_get_int(jstock);
+        if (stock < 0) return 0;               /* non tracciato */
+        json_object_object_add(item, "stock", json_object_new_int(stock + qty));
+        return 0;
+    }
+
+    json_object *components = getBundleComponents(item);
+    if (!components) return 0;
+
+    size_t count = json_object_array_length(components);
+    for (size_t i = 0; i < count; i++) {
+        json_object *c = json_object_array_get_idx(components, i);
+        json_object *jname = NULL;
+        if (!json_object_object_get_ex(c, "name", &jname) || !jname) return -1;
+        json_object *child = findItemByName(products, json_object_get_string(jname));
+        if (!child) return 1;
+        int res = restoreTree(products, child, qty * getComponentQty(c));
+        if (res != 0) return res;
+    }
+    return 0;
+}
+
+int restoreProductInventory(const char *fname, const char *name, int qty) {
+    json_object *arr = loadJsonArray(fname);
+    if (!arr) return -1;
+    json_object *item = findItemByName(arr, name);
+    if (!item) { json_object_put(arr); return 1; }
+    int res = restoreTree(arr, item, qty);
+    if (res == 0) res = saveJsonArray(fname, arr);
+    json_object_put(arr);
+    return res == 0 ? 0 : -1;
+}
+
 static char *loadFileText(const char *fname) {
     FILE *f = fopen(fname, "rb");
     long size;
@@ -692,38 +818,111 @@ int recordSale(const char *productsFile, const char *soldFile, const char *name,
     return 0;
 }
 
-int updateSold(const char *fname, const char *name, int qty) {
-    json_object *arr = loadJsonArray(fname);
-    if (!arr)
+int deleteSold(const char *productsFile, const char *soldFile, const char *name) {
+    json_object *sales = loadJsonArray(soldFile);
+    if (!sales)
         return -1;
 
-    json_object *item = findItemByName(arr, name);
+    json_object *item = findItemByName(sales, name);
     if (!item) {
-        json_object_put(arr);
-        return 1;
+        json_object_put(sales);
+        return 1;                       /* vendita non presente */
+    }
+
+    json_object *jsold = NULL;
+    int qty = 0;
+    if (json_object_object_get_ex(item, "sold", &jsold) && jsold)
+        qty = json_object_get_int(jsold);
+
+    /* backup dei prodotti per il rollback */
+    char *backup = NULL;
+    if (qty > 0) {
+        backup = loadFileText(productsFile);
+        if (!backup) {
+            json_object_put(sales);
+            return -1;
+        }
+
+        int res = restoreProductInventory(productsFile, name, qty);
+        /* 1 = prodotto non più presente: niente da ripristinare, si procede */
+        if (res != 0 && res != 1) {
+            free(backup);
+            json_object_put(sales);
+            return res;
+        }
+    }
+
+    int res = removeItemByName(sales, name);
+    if (res == 0)
+        res = saveJsonArray(soldFile, sales);
+    json_object_put(sales);
+
+    if (res != 0) {
+        if (backup)
+            saveFileText(productsFile, backup);   /* rollback inventario */
+        free(backup);
+        return (res < 0) ? res : -1;
+    }
+
+    free(backup);
+    return 0;
+}
+
+int updateSold(const char *productsFile, const char *soldFile, const char *name, int qty) {
+    if (qty < 0)
+        return -1;
+
+    json_object *sales = loadJsonArray(soldFile);
+    if (!sales)
+        return -1;
+
+    json_object *item = findItemByName(sales, name);
+    if (!item) {
+        json_object_put(sales);
+        return 1;                       /* vendita non presente */
+    }
+
+    json_object *jsold = NULL;
+    int oldQty = 0;
+    if (json_object_object_get_ex(item, "sold", &jsold) && jsold)
+        oldQty = json_object_get_int(jsold);
+
+    int delta = qty - oldQty;           /* >0: vendute di più, <0: vendute di meno */
+    char *backup = NULL;
+
+    if (delta != 0) {
+        backup = loadFileText(productsFile);
+        if (!backup) {
+            json_object_put(sales);
+            return -1;
+        }
+
+        int res;
+        if (delta > 0)
+            res = consumeProductInventory(productsFile, name, delta);   /* controlla anche la disponibilità */
+        else
+            res = restoreProductInventory(productsFile, name, -delta);
+
+        if (res != 0 && !(delta < 0 && res == 1)) {
+            free(backup);
+            json_object_put(sales);
+            return (res == 1) ? -1 : res;   /* evita ambiguità con "vendita non presente" */
+        }
     }
 
     json_object_object_add(item, "sold", json_object_new_int(qty));
+    int res = saveJsonArray(soldFile, sales);
+    json_object_put(sales);
 
-    int res = saveJsonArray(fname, arr);
-    json_object_put(arr);
-    return (res == 0) ? 0 : -1;
-}
-
-int deleteSold(const char *fname, const char *name) {
-    json_object *arr = loadJsonArray(fname);
-    if (!arr)
-        return -1;
-
-    int res = removeItemByName(arr, name);
     if (res != 0) {
-        json_object_put(arr);
-        return res;
+        if (backup)
+            saveFileText(productsFile, backup);   /* rollback inventario */
+        free(backup);
+        return -1;
     }
 
-    res = saveJsonArray(fname, arr);
-    json_object_put(arr);
-    return (res == 0) ? 0 : -1;
+    free(backup);
+    return 0;
 }
 
 /* ------------------------------------------------------------------ */

src/windowsDeclaration.c

@@ -11,6 +11,8 @@
 #define MAX_LEN 64
 #define LINE_LEN 96
 
+
+
 /*
  * Helper
  */
@@ -29,6 +31,15 @@ static void replaceCommaWithDot(char *text) {
             *p = '.';
 }
 
+static int askAction(const char *title, char **opts, int n_opts) {
+    WINDOW *win = create_newwin(8, COLS / 3 + 8, LINES / 2 - 4, COLS / 2);
+    mvwprintw(win, 1, 2, "%s", title);
+    int choice = uiSelectMenu(win, 3, 2, opts, n_opts);
+    werase(win);
+    destroy_win(win);
+    return choice;
+}
+
 static int parseIntValue(const char *text, int *value) {
     char *end = NULL;
     long parsed = strtol(text, &end, 10);
@@ -216,6 +227,51 @@ static int promptDataFilesForm(char *productsFile, size_t productsFileSize, char
     return choice;
 }
 
+static int promptExportFileName(char *outFile, size_t outFileSize) {
+    WINDOW *win = create_newwin(9, COLS / 2, 0, COLS / 2);
+    char *opts[] = {"Esporta", "Annulla"};
+
+    mvwprintw(win, 1, 2, "Esporta vendite a CSV");
+    mvwprintw(win, 3, 2, "File di destinazione:");
+    if (outFile && outFile[0])
+        uiTextInput(win, 4, 2, outFile, (int)outFileSize - 1);
+    else {
+        snprintf(outFile, outFileSize, "export.csv");
+        uiTextInput(win, 4, 2, outFile, (int)outFileSize - 1);
+    }
+
+    int choice = uiSelectMenu(win, 6, 4, opts, 2);
+    werase(win);
+    destroy_win(win);
+    return choice;
+}
+
+void runExportCsvWindow() {
+    char outFile[MAX_LEN + 1];
+    snprintf(outFile, sizeof outFile, "export.csv");
+
+    int choice = promptExportFileName(outFile, sizeof outFile);
+    if (choice != 1) {
+        statusf("Operazione annullata");
+        return;
+    }
+
+    char title[128];
+    char *opts[] = {"Conferma", "Annulla"};
+    snprintf(title, sizeof title, "Esportare le vendite in '%s' ?", outFile);
+    int ok = askAction(title, opts, 2);
+    if (ok != 1) {
+        statusf("Operazione annullata");
+        return;
+    }
+
+    int res = exportSalesToCsv(productPricesFileLocation, countFileLocation, outFile);
+    if (res == 0)
+        statusf("Export CSV salvato in '%s'", outFile);
+    else
+        warningf("Errore nell'esportazione (codice %d)", res);
+}
+
 static char **buildSalesLines(json_object *sales, int *n) {
     int count = (int)json_object_array_length(sales);
     char **lines = malloc((count > 0 ? count : 1) * sizeof *lines);
@@ -316,15 +372,6 @@ static int listWindow(const char *title, char **lines, int n, const char *footer
     return result;
 }
 
-static int askAction(const char *title, char **opts, int n_opts) {
-    WINDOW *win = create_newwin(8, COLS / 3 + 8, LINES / 2 - 4, COLS / 2);
-    mvwprintw(win, 1, 2, "%s", title);
-    int choice = uiSelectMenu(win, 3, 2, opts, n_opts);
-    werase(win);
-    destroy_win(win);
-    return choice;
-}
-
 static int confirmDeletion(const char *subject) {
     char *opts[] = {"Elimina", "Annulla"};
     char title[128];
@@ -593,13 +640,16 @@ static void showSaleEditWindow(const char *name, int sold) {
         return;
     }
 
-    int res = updateSold(countFileLocation, name, qty);
+    int res = updateSold(productPricesFileLocation, countFileLocation, name, qty);
     if (res == 0)
         statusf("Vendita aggiornata: '%s' = %d", name, qty);
     else if (res == 1)
         warningf("La vendita '%s' non esiste piu'.", name);
+    else if (res == 2)
+        warningf("Stock insufficiente per portare '%s' a %d vendite.", name, qty);
     else
-        warningf("Errore nella scrittura del file '%s'.", countFileLocation);
+        warningf("Errore nell'aggiornamento di vendite/inventario ('%s', '%s').",
+                 countFileLocation, productPricesFileLocation);
 }
 
 static void deleteSaleByName(const char *name) {
@@ -608,13 +658,14 @@ static void deleteSaleByName(const char *name) {
         return;
     }
 
-    int res = deleteSold(countFileLocation, name);
+    int res = deleteSold(productPricesFileLocation, countFileLocation, name);
     if (res == 0)
-        statusf("Vendita eliminata: '%s'", name);
+        statusf("Vendita eliminata: '%s' (inventario ripristinato)", name);
     else if (res == 1)
         warningf("La vendita '%s' non esiste piu'.", name);
     else
-        warningf("Errore nella scrittura del file '%s'.", countFileLocation);
+        warningf("Errore nell'aggiornamento di vendite/inventario ('%s', '%s').",
+                 countFileLocation, productPricesFileLocation);
 }
 
 static void showSaleActionWindow(const char *name, int sold) {
@@ -826,6 +877,9 @@ static void runMainMenuChoice(int choice) {
             runOptionsMenu();
             break;
         case 7:
+            runExportCsvWindow();
+            break;
+        case 8:
             runAboutWindow();
             break;
     }
@@ -836,9 +890,10 @@ int runMainMenu() {
         "Segna vendita",
         "Vedi vendite",
         "Vedi prodotti",
-        "Aggiungi prodotti",
-        "Crea nuovo bundle",
+        "Aggiungi nuovo prodotto",
+        "Aggiungi nuovo bundle",
         "Opzioni",
+        "Esporta CSV",
         "About",
         "Exit"
     };
@@ -861,11 +916,11 @@ int runMainMenu() {
     clrtoeol();
     refresh();
 
-    if (choice >= 1 && choice <= 7)
+    if (choice >= 1 && choice <= 8)
         runMainMenuChoice(choice);
 
     destroy_win(mainWin);
-    return choice != 8;
+    return choice != 9;
 }
 
 void runAboutWindow() {