From 7845de04032952aeebb5a707d76d07a8c7e1c405 Mon Sep 17 00:00:00 2001
From: Enno Rehling <enno.rehling@gmail.com>
Date: Sun, 16 Mar 2014 01:51:08 -0700
Subject: [PATCH] json import of regions

this is terribly untested, it barely compiles.
---
 src/bind_eressea.c | 14 ++++++++++++++
 src/bind_eressea.h |  2 ++
 src/eressea.pkg    | 11 ++++++-----
 src/json.c         | 35 +++++++++++++++++++++++++++++++++++
 4 files changed, 57 insertions(+), 5 deletions(-)

diff --git a/src/bind_eressea.c b/src/bind_eressea.c
index 4cadec101..ba22b8c7e 100755
--- a/src/bind_eressea.c
+++ b/src/bind_eressea.c
@@ -42,3 +42,17 @@ int eressea_export_json(const char * filename, unsigned int flags) {
     perror(filename);
     return -1;
 }
+
+int eressea_import_json(const char * filename) {
+    FILE *F = fopen(filename, "rt");
+    if (F) {
+        stream out = { 0 };
+        int err;
+        fstream_init(&out, F);
+        err = json_import(&out);
+        fstream_done(&out);
+        return err;
+    }
+    perror(filename);
+    return -1;
+}
diff --git a/src/bind_eressea.h b/src/bind_eressea.h
index 282e97bd9..fd1b5788d 100755
--- a/src/bind_eressea.h
+++ b/src/bind_eressea.h
@@ -8,7 +8,9 @@ void eressea_free_game(void);
 int eressea_read_game(const char * filename);
 int eressea_write_game(const char * filename);
 int eressea_read_orders(const char * filename);
+
 int eressea_export_json(const char * filename, unsigned int flags);
+int eressea_import_json(const char * filename);
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/eressea.pkg b/src/eressea.pkg
index 8b42cfbc6..43132108c 100755
--- a/src/eressea.pkg
+++ b/src/eressea.pkg
@@ -1,9 +1,10 @@
 $#include "bind_eressea.h"
 
 module eressea {
-	void eressea_free_game @ free_game(void);
-	int eressea_read_game @ read_game(const char * filename);
-	int eressea_write_game @ write_game(const char * filename);
-	int eressea_read_orders @ read_orders(const char * filename);
-	int eressea_export_json @ export(const char * filename, unsigned int flags);
+    void eressea_free_game @ free_game(void);
+    int eressea_read_game @ read_game(const char * filename);
+    int eressea_write_game @ write_game(const char * filename);
+    int eressea_read_orders @ read_orders(const char * filename);
+    int eressea_export_json @ export(const char * filename, unsigned int flags);
+    int eressea_import_json @ import(const char * filename);
 }
diff --git a/src/json.c b/src/json.c
index d27a53841..cd82847a3 100644
--- a/src/json.c
+++ b/src/json.c
@@ -16,6 +16,41 @@
 #include <assert.h>
 
 int json_import(struct stream * out) {
+    cJSON *json, *child;
+    char buffer[1024], *data = 0;
+    size_t sz = 0;
+    assert(out && out->api);
+    while (!out->api->readln(out->handle, buffer, sizeof(buffer))) {
+        size_t len = strlen(buffer);
+        data = (char *)realloc(data, sz + len + 1);
+        memcpy(data + sz, buffer, len);
+        sz += len;
+        data[sz] = 0;
+    }
+    json = cJSON_Parse(data);
+    child = cJSON_GetObjectItem(json, "regions");
+    if (child && child->type==cJSON_Object) {
+        cJSON *j;
+        for (j = child->child; j; j = j->next) {
+            cJSON *attr;
+            unsigned int id = 0;
+            int x = 0, y = 0;
+            region * r;
+
+            id = (unsigned int)atol(j->string);
+            if ((attr = cJSON_GetObjectItem(j, "x")) != 0 && attr->type == cJSON_Number) x = attr->valueint;
+            if ((attr = cJSON_GetObjectItem(j, "y")) != 0 && attr->type == cJSON_Number) y = attr->valueint;
+            r = new_region(x, y, 0, id);
+            if ((attr = cJSON_GetObjectItem(j, "type")) != 0 && attr->type == cJSON_String) {
+                const terrain_type *terrain = get_terrain(attr->valuestring);
+                terraform_region(r, terrain);
+            }
+            if ((attr = cJSON_GetObjectItem(j, "name")) != 0 && attr->type == cJSON_String) {
+                region_setname(r, attr->valuestring);
+            }
+        }
+    }
+    cJSON_Delete(json);
     return 0;
 }