From ff9518de9d8773889f450902ca16501e9f9ab35c Mon Sep 17 00:00:00 2001
From: Nikita Ivanov <nikita.vyach.ivanov@gmail.com>
Date: Fri, 17 Jun 2022 21:06:31 +0500
Subject: [PATCH] Add .odt files support

---
 prev/odt.sh   | 15 +++++++++++++++
 previews.h    |  1 +
 src/ctpv.c    | 34 ++++++++++++++++++++++++----------
 src/preview.c |  1 +
 src/preview.h |  2 +-
 5 files changed, 42 insertions(+), 11 deletions(-)
 create mode 100644 prev/odt.sh

diff --git a/prev/odt.sh b/prev/odt.sh
new file mode 100644
index 0000000..60178c6
--- /dev/null
+++ b/prev/odt.sh
@@ -0,0 +1,15 @@
+# libreoffice
+
+
+office() {
+	# File produced by libreoffice
+	jpg="$(printf '%s\n' "$f" | sed 's|^.*/||; s|\..*$||')"
+
+	libreoffice               \
+		--headless            \
+		--convert-to jpg "$f" \
+		--outdir "$cache_d" >/dev/null &&
+		mv "$cache_d/$jpg.jpg" "$cache_f"
+}
+
+convert_and_show_image office
diff --git a/previews.h b/previews.h
index fbcce0d..6365cf0 100644
--- a/previews.h
+++ b/previews.h
@@ -19,6 +19,7 @@ Preview b_previews[] = {
 
     PR("md",      NULL,             NULL,             mdcat),
     PR("torrent", NULL,             NULL,             torrent),
+    PR("odt",     NULL,             NULL,             odt),
 
     PR(NULL,      "text",           NULL,             bat),
     PR(NULL,      "text",           NULL,             highlight),
diff --git a/src/ctpv.c b/src/ctpv.c
index 1a88271..5f43175 100644
--- a/src/ctpv.c
+++ b/src/ctpv.c
@@ -152,14 +152,20 @@ static void md5_string(char *buf, size_t len, char *s)
     }
 }
 
-static int get_cache_file(char *buf, size_t len, char *file)
+static int get_cache_file(char *dir, size_t dir_len, char *filename,
+                          size_t filename_len, char *file)
 {
-    ERRCHK_RET_OK(get_cache_dir(buf, len, "ctpv/"));
-    ERRCHK_RET_OK(create_dir(buf, len));
+    ERRCHK_RET_OK(get_cache_dir(dir, dir_len, "ctpv/"));
+    ERRCHK_RET_OK(create_dir(dir, dir_len));
 
-    char name[64];
-    md5_string(name, LEN(name) - 1, file);
-    strncat(buf, name, len - 1);
+    size_t dir_str_len = strlen(dir);
+
+    memcpy(filename, dir, filename_len);
+
+    md5_string(filename + dir_str_len, filename_len - dir_str_len - 1, file);
+
+    /* Remove dash at the end */
+    dir[dir_str_len-1] = '\0';
 
     return OK;
 }
@@ -195,15 +201,23 @@ static int preview(int argc, char *argv[])
     const char *mimetype;
     ERRCHK_RET(!(mimetype = get_mimetype(f)));
 
-    char cache_file[FILENAME_MAX];
-    ERRCHK_RET_OK(get_cache_file(cache_file, LEN(cache_file), f));
+    char cache_dir[FILENAME_MAX], cache_file[FILENAME_MAX];
+    ERRCHK_RET_OK(get_cache_file(cache_dir, LEN(cache_file), cache_file,
+                                 LEN(cache_file), f));
 
     int cache_valid;
     ERRCHK_RET_OK(check_cache(&cache_valid, f, cache_file));
 
     PreviewArgs args = {
-        .f = f, .w = w, .h = h, .x = x, .y = y, .id = id,
-        .cache_file = cache_file, .cache_valid = cache_valid,
+        .f = f,
+        .w = w,
+        .h = h,
+        .x = x,
+        .y = y,
+        .id = id,
+        .cache_dir = cache_dir,
+        .cache_file = cache_file,
+        .cache_valid = cache_valid,
     };
 
     return preview_run(get_ext(f), mimetype, &args);
diff --git a/src/preview.c b/src/preview.c
index 937dc55..89c3024 100644
--- a/src/preview.c
+++ b/src/preview.c
@@ -166,6 +166,7 @@ int preview_run(const char *ext, const char *mimetype, PreviewArgs *pa)
     SET_PENV("y", pa->y);
     SET_PENV("id", pa->id);
     SET_PENV("cache_f", pa->cache_file);
+    SET_PENV("cache_d", pa->cache_dir);
 
     {
         char *s = pa->cache_valid ? "1" : "";
diff --git a/src/preview.h b/src/preview.h
index 957e3df..98d797b 100644
--- a/src/preview.h
+++ b/src/preview.h
@@ -17,7 +17,7 @@ VECTOR_GEN_HEADER(Preview, Preview)
 
 typedef struct {
     char *f, *w, *h, *x, *y, *id;
-    char *cache_file;
+    char *cache_file, *cache_dir;
     int cache_valid;
 } PreviewArgs;