From f72ae0837052001a7bab164a0a9c694094bf2c28 Mon Sep 17 00:00:00 2001
From: Meutel <meutel@meutel.net>
Date: Sat, 14 Jan 2017 14:36:01 +0100
Subject: [PATCH] Book search query

---
 db_book.c |  3 +--
 extern.h  |  4 +++-
 main.c    | 41 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 45 insertions(+), 3 deletions(-)

diff --git a/db_book.c b/db_book.c
index a1a9eff..fab5053 100644
--- a/db_book.c
+++ b/db_book.c
@@ -527,7 +527,7 @@ db_book_load(struct kreq *r, int64_t id)
 }
 
 int
-db_books_search(struct kreq *r, int limit, Book** books, char **terms, int num, int all)
+db_books_search(struct kreq *r, int limit, Book** books, const char **terms, int num, int all)
 {
   if (limit < 0) {
     return 0;
@@ -570,6 +570,5 @@ db_books_search(struct kreq *r, int limit, Book** books, char **terms, int num,
   }
   ksql_stmt_free(stmt);
 
-
   return count;
 }
diff --git a/extern.h b/extern.h
index df1a42d..c80b818 100644
--- a/extern.h
+++ b/extern.h
@@ -145,7 +145,9 @@ struct bookdata {
 
 __BEGIN_DECLS
 
-int    db_books_search(struct kreq *r, int limit, Book** books, char **terms, int num, int all);
+int kvalid_term(struct kpair *p);
+
+int    db_books_search(struct kreq *r, int limit, Book** books, const char **terms, int num, int all);
 BookFull *db_book_load(struct kreq *r, int64_t id);
 int    db_books_load(struct kreq *r, BookAdv **books, const char *sort, const char *order, int limit, int offset);
 int    db_books_count(struct kreq *r);
diff --git a/main.c b/main.c
index 45c5c40..4cbdceb 100644
--- a/main.c
+++ b/main.c
@@ -46,6 +46,7 @@ enum key {
   KEY_PERPAGE,
   KEY_SORT,
   KEY_ORDER,
+  KEY_TERM,
   KEY__MAX
 };
 
@@ -61,6 +62,7 @@ static const struct kvalid keys[KEY__MAX] = {
   { kvalid_int, "perpage" }, /* KEY_PERPAGE */
   { kvalid_string, "sort" }, /* KEY_SORT */
   { kvalid_string, "order" }, /* KEY_ORDER */
+  { kvalid_stringne, "term" }, /* KEY_TERM */
 };
 
 /*
@@ -223,6 +225,29 @@ initpage(struct kreq *r)
   return 1;
 }
 
+static size_t
+inittermz(struct kreq *r)
+{
+  size_t termz = 0;
+  for (size_t j=0; j<r->fieldsz; j++) {
+    struct kpair field = r->fields[j];
+    if (KPAIR_VALID == field.state && 0 == strcmp(keys[KEY_TERM].name, field.key))
+      termz++;
+  }
+  return termz;
+}
+
+static void
+initterms(struct kreq *r, const char **terms)
+{
+  int i = 0;
+  for (size_t j=0; j<r->fieldsz; j++) {
+    struct kpair field = r->fields[j];
+    if (KPAIR_VALID == field.state && 0 == strcmp(keys[KEY_TERM].name, field.key))
+      terms[i++] = field.parsed.s;
+  }
+}
+
 static int64_t
 idfrompath(struct kreq *r)
 {
@@ -251,8 +276,10 @@ sendbooks(struct kreq *r)
   int per = initperpage(r);
   const char* sort = initsort(r);
   const char* order = initorder(r);
+  size_t termz = inittermz(r);
   int64_t id = idfrompath(r);
 
+
   if (id >= 0) {
     b = db_book_load(r, id);
   }
@@ -267,6 +294,19 @@ sendbooks(struct kreq *r)
     putbookdata(&req, b);
     kjson_obj_close(&req);
     db_book_full_free(b);
+  } if (termz > 0) {
+    kjson_array_open(&req);
+    const char **terms = kcalloc(termz, sizeof(char *));
+    initterms(r, terms);
+    Book **books = kcalloc(10, sizeof(Book));
+    int c = db_books_search(r, 10, books, terms, termz, 0);
+    while (i < 10 && i < c) {
+      putbook(&req, books[i]);
+      kjson_obj_close(&req);
+      i++;
+    }
+    // TODO free
+    kjson_array_close(&req);
   } else {
     kjson_array_open(&req);
     BookAdv **books = kcalloc(per, sizeof(BookAdv));
@@ -276,6 +316,7 @@ sendbooks(struct kreq *r)
       i++;
     }
     free(books);
+
     kjson_array_close(&req);
   }
   kjson_close(&req);