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#include <libxml/tree.h>
#include <libxml/xmlsave.h>
#include "export_xml.h"
#if !defined(LIBXML_TREE_ENABLED)
#error "libxml must be compiled with tree support"
#endif
int export_xml(struct channel_t *channel, struct user_t *users) {
/* Create document and set root node. */
xmlDocPtr doc = xmlNewDoc("1.0");
xmlNodePtr root_node = xmlNewNode(NULL, "channel");
xmlDocSetRootElement(doc, root_node);
/* Set the channel name. */
xmlNewChild(root_node, NULL, "name", channel->name);
/* Add lines. */
xmlNodePtr lines_node = xmlNewChild(root_node, NULL, "lines", NULL);
for(int h = 0; h < 24; h++) {
xmlNodePtr hour_node = xmlNewChild(lines_node, NULL, "hour", NULL);
for(int q = 0; q < 4; q++) {
char s[0xf];
sprintf(s, "%d", channel->hours[h*4 + q]);
xmlNewChild(hour_node, NULL, "quarter", s);
}
}
/* Add users. */
xmlNodePtr users_node = xmlNewChild(root_node, NULL, "users", NULL);
for(int u = 0; u < USERS_MAX; u++) {
struct user_t *user = &users[u];
/* Iterate while we have a user (nick is non-NULL). */
while(user && user->nick) {
char s[0xf];
xmlNodePtr user_node = xmlNewChild(users_node, NULL, "user", NULL);
xmlNewChild(user_node, NULL, "nick", user->nick);
sprintf(s, "%d", user->words);
xmlNewChild(user_node, NULL, "words", s);
/* Add lines for this user. */
xmlNodePtr lines_node = xmlNewChild(users_node, NULL, "lines", NULL);
for(int h = 0; h < 24; h++) {
xmlNodePtr hour_node = xmlNewChild(lines_node, NULL, "hour", NULL);
for(int q = 0; q < 4; q++) {
sprintf(s, "%d", user->lines[h*4 + q]);
xmlNewChild(hour_node, NULL, "quarter", s);
}
}
user = user->next;
}
}
xmlSaveCtxtPtr save_context = xmlSaveToFilename(channel->xmlpath, "UTF-8", 0);
if(!save_context) {
xmlErrorPtr error = xmlGetLastError();
fprintf(stderr, "Failed to save XML data: %s\n", (error ? error->message : "unknown error"));
xmlFreeDoc(doc);
return 0;
}
xmlSaveDoc(save_context, doc);
xmlSaveClose(save_context);
xmlFreeDoc(doc);
return 1;
}
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