1 files changed, 101 insertions, 0 deletions

diff --git a/src/db.cc b/src/db.cc
new file mode 100644
index 0000000..d1e0a85
--- a/dev/null
+++ b/src/db.cc
@@ -0,0 +1,101 @@
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <cassert>
+#include <napkin/exception.h>
+#include "db.h"
+
+#include "config.h"
+
+namespace napkin {
+
+    extern const char *sql_bootstrap;
+
+    db_t::db_t() {
+        const char *h = getenv("HOME");
+        if(h) {
+            datadir = h;
+            datadir += "/."PACKAGE_NAME"/";
+        }else{
+            char *cwd = get_current_dir_name();
+            if(!cwd)
+                throw napkin::exception("failed to get_current_dir_name()");
+            datadir = cwd;
+            free(cwd);
+            datadir += "/."PACKAGE_NAME"/";
+        }
+        if(access(datadir.c_str(),R_OK|W_OK)
+                && mkdir(datadir.c_str(),0700))
+            throw napkin::exception("no access to '"+datadir+"' directory");
+        open((datadir+PACKAGE_NAME".db").c_str());
+        assert(_D);
+        char **resp; int nr,nc; char *errm;
+        if(sqlite3_get_table(
+                    _D,
+                    "SELECT s_tobed FROM sleeps LIMIT 0",
+                    &resp,&nr,&nc,&errm)!=SQLITE_OK) {
+            if(sqlite3_exec(_D,sql_bootstrap,NULL,NULL,&errm)!=SQLITE_OK)
+                throw napkin::exception(string("failed to bootstrap sqlite database: ")+errm);
+        }else
+            sqlite3_free_table(resp);
+    }
+
+    void db_t::store(const hypnodata_t& hd) {
+        sqlite::mem_t<char*> S = sqlite3_mprintf(
+                "INSERT INTO sleeps ("
+                 "s_tobed,s_alarm,"
+                 "s_window,s_data_a,"
+                 "s_almost_awakes,"
+                 "s_timezone"
+                ") VALUES ("
+                 "%Q,%Q,%d,%d,%Q,%ld"
+                ")",
+                hd.w3c_to_bed().c_str(),
+                hd.w3c_alarm().c_str(),
+                hd.window,hd.data_a,
+                hd.w3c_almostawakes().c_str(),
+                timezone );
+        try {
+            exec(S);
+        }catch(sqlite::exception& se) {
+            if(se.rcode==SQLITE_CONSTRAINT)
+                throw exception_db_already("The record seems to be already in the database");
+            throw exception_db("Well, some error occured");
+        }
+    }
+
+    void db_t::remove(const hypnodata_t& hd) {
+        sqlite::mem_t<char*> S = sqlite3_mprintf(
+                "DELETE FROM sleeps"
+                " WHERE s_tobed=%Q AND s_alarm=%Q",
+                hd.w3c_to_bed().c_str(),
+                hd.w3c_alarm().c_str() );
+        exec(S);
+    }
+
+    void db_t::load(list<hypnodata_ptr_t>& rv,
+            const string& sql) {
+        sqlite::table_t T;
+        int nr,nc;
+        get_table( string(
+                    "SELECT"
+                     " s_tobed, s_alarm,"
+                     " s_window, s_data_a,"
+                     " s_almost_awakes"
+                    " FROM sleeps"
+                    " "+sql).c_str(),T,&nr,&nc );
+        if(nr) {
+            assert(nc==5);
+            for(int r=1;r<=nr;++r) {
+                hypnodata_ptr_t hd(new hypnodata_t());
+                hd->set_to_bed(T.get(r,0,nc));
+                hd->set_alarm(T.get(r,1,nc));
+                hd->set_window(T.get(r,2,nc));
+                hd->set_data_a(T.get(r,3,nc));
+                hd->set_almost_awakes(T.get(r,4,nc));
+                rv.push_back(hd);
+            }
+        }
+    }
+
+}