init(lib): add Tanabata FM lib

include/tanabata.h

@@ -0,0 +1,52 @@
+// Tanabata file manager lib
+// By Masahiko AMANO aka H1K0
+
+#ifndef TANABATA_H
+#define TANABATA_H
+
+#ifdef __cplusplus
+#include <cstdint>
+#include <cstdio>
+extern "C" {
+#else
+#include <stdint.h>
+#include <stdio.h>
+#endif
+
+#include "core.h"
+
+// Tanabata (七夕) - the struct with all databases
+typedef struct tanabata {
+    Sasahyou  sasahyou;   // Sasahyou struct
+    Sappyou   sappyou;    // Sappyou struct
+    Shoppyou  shoppyou;   // Shoppyou struct
+} Tanabata;
+
+// ==================== DATABASE SECTION ==================== //
+
+// Initialize empty tanabata
+int tanabata_init(Tanabata *tanabata);
+
+// Free tanabata
+int tanabata_free(Tanabata *tanabata);
+
+// Weed tanabata
+int tanabata_weed(Tanabata *tanabata);
+
+// Load tanabata
+int tanabata_load(Tanabata *tanabata);
+
+// Save tanabata
+int tanabata_save(Tanabata *tanabata);
+
+// Open tanabata
+int tanabata_open(Tanabata *tanabata, const char *path);
+
+// Dump tanabata
+int tanabata_dump(Tanabata *tanabata, const char *path);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //TANABATA_H

src/tanabata/database.c

@@ -0,0 +1,96 @@
+#include <malloc.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#include "../../include/tanabata.h"
+
+int tanabata_init(Tanabata *tanabata) {
+    int status = 0;
+    status |= sasahyou_init(&tanabata->sasahyou);
+    status |= sappyou_init(&tanabata->sappyou);
+    status |= shoppyou_init(&tanabata->shoppyou);
+
+    return status;
+}
+
+int tanabata_free(Tanabata *tanabata) {
+    int status = 0;
+    status |= sasahyou_free(&tanabata->sasahyou);
+    status |= sappyou_free(&tanabata->sappyou);
+    status |= shoppyou_free(&tanabata->shoppyou);
+
+    return status;
+}
+
+int tanabata_weed(Tanabata *tanabata) {
+    int status = 0;
+    status |= sasahyou_weed(&tanabata->sasahyou);
+    status |= sappyou_weed(&tanabata->sappyou);
+    status |= shoppyou_weed(&tanabata->shoppyou);
+
+    return status;
+}
+
+int tanabata_load(Tanabata *tanabata) {
+    int status = 0;
+    status |= sasahyou_load(&tanabata->sasahyou);
+    status |= sappyou_load(&tanabata->sappyou);
+    status |= shoppyou_load(&tanabata->shoppyou);
+
+    return status;
+}
+
+int tanabata_save(Tanabata *tanabata) {
+    int status = 0;
+    status |= sasahyou_save(&tanabata->sasahyou);
+    status |= sappyou_save(&tanabata->sappyou);
+    status |= shoppyou_save(&tanabata->shoppyou);
+
+    return status;
+}
+
+int tanabata_open(Tanabata *tanabata, const char *path) {
+    if (path[-1] == '/') {
+        fprintf(stderr, "Failed to open tanabata: output path must not end with '/'\n");
+        return 1;
+    }
+    struct stat st;
+    if (stat(path, &st) != 0 || !S_ISDIR(st.st_mode)) {
+        fprintf(stderr, "Failed to open tanabata: directory '%s' does not exist\n", path);
+        return 1;
+    }
+    int status = 0;
+    char *file_path = malloc(strlen(path) + 10);
+    strcpy(file_path, path);
+    status |= sasahyou_open(&tanabata->sasahyou, strcat(file_path, "/sasahyou"));
+    strcpy(file_path, path);
+    status |= sappyou_open(&tanabata->sappyou, strcat(file_path, "/sappyou"));
+    strcpy(file_path, path);
+    status |= shoppyou_open(&tanabata->shoppyou, strcat(file_path, "/shoppyou"));
+    free(file_path);
+
+    return status;
+}
+
+int tanabata_dump(Tanabata *tanabata, const char *path) {
+    if (path[-1] == '/') {
+        fprintf(stderr, "Failed to dump tanabata: output path must not end with '/'\n");
+        return 1;
+    }
+    struct stat st;
+    if (stat(path, &st) != 0 || !S_ISDIR(st.st_mode)) {
+        fprintf(stderr, "Failed to dump tanabata: directory '%s' does not exist\n", path);
+        return 1;
+    }
+    int status = 0;
+    char *file_path = malloc(strlen(path) + 10);
+    strcpy(file_path, path);
+    status |= sasahyou_dump(&tanabata->sasahyou, strcat(file_path, "/sasahyou"));
+    strcpy(file_path, path);
+    status |= sappyou_dump(&tanabata->sappyou, strcat(file_path, "/sappyou"));
+    strcpy(file_path, path);
+    status |= shoppyou_dump(&tanabata->shoppyou, strcat(file_path, "/shoppyou"));
+    free(file_path);
+
+    return status;
+}