urls to posts window finished

src/msg/CMakeLists.txt

@@ -17,6 +17,8 @@ set(SOURCES
     access_error_msg.c
     color_comp_error_msg.c
     window_create_error_msg.c
+    posts_not_array_error_msg.c
+    post_error_msg.c
 )
 
 add_library(yiffy-messages STATIC ${SOURCES})

src/msg/post_error_msg.c

@@ -0,0 +1,20 @@
+/**
+ * @file post_error_msg.c
+ * 
+ * @brief This file is used to output the error when the parsing is faced with an error in the post section.
+ * 
+ * @author Mehmet Mert Gunduz ([email protected])
+ * 
+ * @date 28/05/2024
+*/
+
+#include "yiffy_messages.h"
+
+/**
+ * @brief Outputs the error when the parsing is faced with an error in the post section.
+*/ 
+void post_error_msg()
+{
+    fprintf(stderr, "yiffy: post data is not in correct format, not able to parse JSON.\n");
+    fprintf(stderr, "yiffy: please try giving different tags.\n");
+}

src/msg/posts_not_array_error_msg.c

@@ -0,0 +1,20 @@
+/**
+ * @file posts_not_array_error_msg.c
+ * 
+ * @brief This file is used to output the error when the parsing is faced with an error in the posts section.
+ * 
+ * @author Mehmet Mert Gunduz ([email protected])
+ * 
+ * @date 28/05/2024
+*/
+
+#include "yiffy_messages.h"
+
+/**
+ * @brief Outputs the error when the parsing is faced with an error in the posts section.
+*/ 
+void posts_not_array_error_msg()
+{
+    fprintf(stderr, "yiffy: format is not in array type, not able to parse JSON.\n");
+    fprintf(stderr, "yiffy: please try giving different tags.\n");
+}

src/msg/yiffy_messages.h

@@ -32,5 +32,7 @@ void conf_successful_msg(char *option, char *argv);
 void access_error_msg();
 void color_comp_error_msg();
 void window_create_error_msg();
+void posts_not_array_error_msg();
+void post_error_msg();
 
 #endif /* YIFFY_MESSAGES_H */

src/search/CMakeLists.txt

@@ -6,6 +6,7 @@ set(SOURCES
     create_post_tags_window.c
     create_controls_window.c
     search.c
+    write_post.c
 )
 
 add_library(yiffy-search STATIC ${SOURCES})

src/search/create_posts_window.c

@@ -13,16 +13,16 @@
 /// @brief Creates a new window to display posts and adds it to the specified position. 
 /// @param window A pointer to the WINDOW where posts will be displayed. 
 /// @param posts_panel_height A pointer to an integer representing the height of the posts panel. 
-void create_posts_window(WINDOW *window, int *posts_panel_height) 
+void create_posts_window(WINDOW **window, int *posts_panel_height) 
 {
     /* Create the posts window until information, taking 12 lines from it because the info and controls window line is 12. */
     *posts_panel_height = LINES - 12;
 
-    window = newwin(*posts_panel_height, COLS, 3, 0);
-    box(window, 0, 0);
+    *window = newwin(*posts_panel_height, COLS, 3, 0);
+    box(*window, 0, 0);
 
-    set_window_title(window, "POSTS");
+    set_window_title(*window, "POSTS");
 
     refresh();
-    wrefresh(window);
+    wrefresh(*window);
 }

src/search/search.c

@@ -11,10 +11,10 @@
 #include <ncurses.h>
 
 #include "yiffy_search.h"
-#include "../fetch/yiffy_fetch.h"
 
 #define MAX_FILE_PATH 256   ///< This macro is used to set the default size for getting the home directory file.
 #define MAX_BUFFER_SIZE 512 ///< This macro is used to set the default size for reading the config file.
+#define CONTENT_SIZE 524288 ///< This macro is used to set the default size for reading the JSON file that comes as a response from the API.
 
 control controls[] = 
 {
@@ -36,6 +36,9 @@ bool is_nsfw;
 /// @brief Height of the posts panel in the user interface.
 int posts_panel_height;
 
+/// @brief The string for storing posts.json data.
+char json_string[CONTENT_SIZE];
+
 /// @brief Creates a ncurses-based user interface to show, download, search and travel the e621/e926 by using curl api calls and aria2c tool.
 /// @param tags These are the e621-e926 tags prompted by the user as an argument value. Example: yiffy --search "anthro+fur+male+smile".
 void search(char *tags) 
@@ -91,13 +94,88 @@ void search(char *tags)
 
     /* Create the ncurses-based user interfaces. */
     create_top_window(top_window, is_nsfw);
-    create_posts_window(posts_window, &posts_panel_height);
+    create_posts_window(&posts_window, &posts_panel_height);
     create_post_tags_window(post_tags_window, &posts_panel_height);
     create_controls_window(controls_window, &posts_panel_height, controls, sizeof(controls) / sizeof(controls[0]));
 
     /* Download the first page of posts with prompted tags. */
     aria2_download(tags, 1, is_nsfw, posts_panel_height);
 
+    /* Read the posts.json file. */
+    FILE *posts_json_file = fopen("posts.json", "r");
+
+    if (posts_json_file == NULL)
+    {
+        no_json_error_msg();
+        goto END;
+    }
+
+    fgets(json_string, CONTENT_SIZE - 1, posts_json_file);
+
+    /* Close the file after reading and putting the data to json_string. */
+    fclose(posts_json_file);
+
+    /* Parse the JSON. */
+    cJSON *json = cJSON_Parse(json_string);
+
+    if (json == NULL)
+    {
+        json_parse_error_msg();
+        goto END;
+    }
+
+    /* Get the posts array. */
+    cJSON *posts = cJSON_GetObjectItem(json, "posts");
+
+    if (!cJSON_IsArray(posts))
+    {
+        posts_not_array_error_msg();
+        goto END;
+    }
+
+    /* Counter for writing posts. */
+    size_t post_i = 0;
+
+    /* Write the posts and tags to windows. */
+    for (size_t i = 0; i < cJSON_GetArraySize(posts); i++)
+    {
+        /* Take the post with specified index. */
+        cJSON *post = cJSON_GetArrayItem(posts, i);
+
+        if (post == NULL)
+        {
+            post_error_msg();
+            goto END;
+        }
+
+        /* Take the file object of the specified post. */
+        cJSON *file_object = cJSON_GetObjectItem(post, "file");
+
+        if (file_object == NULL)
+        {
+            fprintf(stderr, "File object not found in post %d\n", i);
+            goto END;
+        }
+
+        /* Take the url of the of the specified post by parsing the data from file object. */
+        cJSON *url = cJSON_GetObjectItem(file_object, "url");
+
+        if (url != NULL && cJSON_IsString(url) && post_i != posts_panel_height - 2)
+        {
+            write_post(posts_window, post_i, url);
+
+            wrefresh(posts_window);
+
+            /* Increase post_i. */
+            post_i++;
+        }
+    }
+
+    wrefresh(posts_window);
+    refresh();
+
+    END:
+    cJSON_Delete(json);
     getch();
     endwin();
 }

src/search/write_post.c

@@ -0,0 +1,33 @@
+/**
+ * @file write_post.c
+ * 
+ * @brief This file is used to write posts to the posts window. 
+ * 
+ * @author Mehmet Mert Gunduz ([email protected])
+ * 
+ * @date 28/05/2024
+*/
+
+#include "yiffy_search.h"
+
+/// @brief Writes posts to the posts window. 
+/// @param window Posts window.
+/// @param post_i The index of the post.
+/// @param url The url of the post with specified index.
+void write_post(WINDOW *window, size_t post_i, cJSON *url)
+{
+    /* Make the first post blinking. */
+    if (post_i == 0) 
+    {
+        wattron(window, A_STANDOUT);
+    }
+
+    /* Write the post URL. */
+    mvwprintw(window, post_i + 1, 1, "%s", url->valuestring);
+
+    /* Close the post blinking. */
+    if (post_i == 0) 
+    {
+        wattroff(window, A_STANDOUT);
+    }
+}

src/search/yiffy_search.h

@@ -15,6 +15,7 @@
 #include <stdlib.h>
 #include <time.h>
 
+#include "../fetch/yiffy_fetch.h"
 #include "../msg/yiffy_messages.h"
 
 /// @brief Stores the control name and key for displaying in the controls panel.
@@ -32,11 +33,14 @@ void init_ncurses();
 
 /* User Interface creation functions. */
 void create_top_window(WINDOW *window, bool is_nsfw);
-void create_posts_window(WINDOW *window, int *posts_panel_height); 
+void create_posts_window(WINDOW **window, int *posts_panel_height);
 void create_post_tags_window(WINDOW *window, int *posts_panel_height);
 void create_controls_window(WINDOW *window, int *posts_panel_height, control *controls, int total_controls);
 
 /* Function for writing the titles to windows. */
 void set_window_title(WINDOW *window, const char *title);
 
+/* Function for writing the posts to posts window. */
+void write_post(WINDOW *window, size_t post_i, cJSON *url);
+
 #endif /* YIFFY_UI_H */