1 files changed, 128 insertions, 0 deletions

diff --git a/src/visited.c b/src/visited.c
new file mode 100644
index 00000000..af976be5
--- /dev/null
+++ b/src/visited.c
@@ -0,0 +1,128 @@
+#include "visited.h"
+#include "app.h"
+
+#include <the_Foundation/file.h>
+#include <the_Foundation/path.h>
+#include <the_Foundation/sortedarray.h>
+
+static const size_t maxAgeVisited_Visited_ = 3600 * 24 * 30; /* one month */
+
+void init_VisitedUrl(iVisitedUrl *d) {
+    initCurrent_Time(&d->when);
+    init_String(&d->url);
+}
+
+void deinit_VisitedUrl(iVisitedUrl *d) {
+    deinit_String(&d->url);
+}
+
+static int cmpUrl_VisitedUrl_(const void *a, const void *b) {
+    return cmpString_String(&((const iVisitedUrl *) a)->url, &((const iVisitedUrl *) b)->url);
+}
+
+static int cmpNewer_VisitedUrl_(const void *insert, const void *existing) {
+    return seconds_Time(&((const iVisitedUrl *) insert  )->when) >
+           seconds_Time(&((const iVisitedUrl *) existing)->when);
+}
+
+/*----------------------------------------------------------------------------------------------*/
+
+struct Impl_Visited {
+    iSortedArray visited;
+};
+
+iDefineTypeConstruction(Visited)
+
+void init_Visited(iVisited *d) {
+    init_SortedArray(&d->visited, sizeof(iVisitedUrl), cmpUrl_VisitedUrl_);
+}
+
+void deinit_Visited(iVisited *d) {
+    clear_Visited(d);
+    deinit_SortedArray(&d->visited);
+}
+
+void save_Visited(const iVisited *d, const char *dirPath) {
+    iString *line = new_String();
+    iFile *f = newCStr_File(concatPath_CStr(dirPath, "visited.txt"));
+    if (open_File(f, writeOnly_FileMode | text_FileMode)) {
+        iConstForEach(Array, i, &d->visited.values) {
+            const iVisitedUrl *item = i.value;
+            iDate date;
+            init_Date(&date, &item->when);
+            format_String(line,
+                          "%04d-%02d-%02dT%02d:%02d:%02d %s\n",
+                          date.year,
+                          date.month,
+                          date.day,
+                          date.hour,
+                          date.minute,
+                          date.second,
+                          cstr_String(&item->url));
+            writeData_File(f, cstr_String(line), size_String(line));
+        }
+    }
+    iRelease(f);
+    delete_String(line);
+}
+
+void load_Visited(iVisited *d, const char *dirPath) {
+    iFile *f = newCStr_File(concatPath_CStr(dirPath, "visited.txt"));
+    if (open_File(f, readOnly_FileMode | text_FileMode)) {
+        const iRangecc src  = range_Block(collect_Block(readAll_File(f)));
+        iRangecc       line = iNullRange;
+        iTime          now;
+        initCurrent_Time(&now);
+        while (nextSplit_Rangecc(&src, "\n", &line)) {
+            int y, m, D, H, M, S;
+            sscanf(line.start, "%04d-%02d-%02dT%02d:%02d:%02d ", &y, &m, &D, &H, &M, &S);
+            if (!y) break;
+            iVisitedUrl item;
+            init_VisitedUrl(&item);
+            init_Time(
+                &item.when,
+                &(iDate){ .year = y, .month = m, .day = D, .hour = H, .minute = M, .second = S });
+            if (secondsSince_Time(&now, &item.when) > maxAgeVisited_Visited_) {
+                continue; /* Too old. */
+            }
+            initRange_String(&item.url, (iRangecc){ line.start + 20, line.end });
+            insert_SortedArray(&d->visited, &item);
+        }
+    }
+    iRelease(f);
+}
+
+void clear_Visited(iVisited *d) {
+    iForEach(Array, v, &d->visited.values) {
+        deinit_VisitedUrl(v.value);
+    }
+    clear_SortedArray(&d->visited);
+}
+
+void visitUrl_Visited(iVisited *d, const iString *url) {
+    iVisitedUrl visit;
+    init_VisitedUrl(&visit);
+    set_String(&visit.url, url);
+    size_t pos;
+    if (locate_SortedArray(&d->visited, &visit, &pos)) {
+        iVisitedUrl *old = at_SortedArray(&d->visited, pos);
+        if (cmpNewer_VisitedUrl_(&visit, old)) {
+            old->when = visit.when;
+            deinit_VisitedUrl(&visit);
+            return;
+        }
+    }
+    insert_SortedArray(&d->visited, &visit);
+}
+
+iTime urlVisitTime_Visited(const iVisited *d, const iString *url) {
+    iVisitedUrl item;
+    size_t pos;
+    iZap(item);
+    initCopy_String(&item.url, url);
+    if (locate_SortedArray(&d->visited, &item, &pos)) {
+        item.when = ((const iVisitedUrl *) constAt_SortedArray(&d->visited, pos))->when;
+    }
+    deinit_String(&item.url);
+    return item.when;
+}