3 files changed, 152 insertions, 0 deletions
diff --git a/src/modules/separator/option.h b/src/modules/separator/option.h
new file mode 100644
index 0000000..510132c
--- /dev/null
+++ b/src/modules/separator/option.h
@@ -0,0 +1,11 @@
+#pragma once
+
+#include "common/option.h"
+
+typedef struct FFSeparatorOptions {
+    FFstrbuf string;
+    FFstrbuf outputColor;
+    uint32_t times;
+} FFSeparatorOptions;
+
+static_assert(sizeof(FFSeparatorOptions) <= FF_OPTION_MAX_SIZE, "FFSeparatorOptions size exceeds maximum allowed size");
diff --git a/src/modules/separator/separator.c b/src/modules/separator/separator.c
new file mode 100644
index 0000000..4c5b4bc
--- /dev/null
+++ b/src/modules/separator/separator.c
@@ -0,0 +1,130 @@
+#include "common/printing.h"
+#include "common/jsonconfig.h"
+#include "common/strutil.h"
+#include "common/textModifier.h"
+#include "logo/logo.h"
+#include "modules/separator/separator.h"
+
+bool ffPrintSeparator(FFSeparatorOptions* options) {
+    ffLogoPrintLine();
+
+    if (options->outputColor.length && !instance.config.display.pipe) {
+        ffPrintColor(&options->outputColor);
+    }
+
+    if (options->times > 0) {
+        if (__builtin_expect(options->string.length == 1, 1)) {
+            ffPrintCharTimes(options->string.chars[0], options->times);
+        } else {
+            for (uint32_t i = 0; i < options->times; i++) {
+                fputs(options->string.chars, stdout);
+            }
+        }
+    } else {
+        const FFPlatform* platform = &instance.state.platform;
+
+        uint32_t titleLength = 1                                                                                      // @
+            + ffUtf8StrWidth(platform->userName.chars, platform->userName.length)                                     // user name
+            + (instance.state.titleFqdn ? platform->hostName.length : ffStrbufFirstIndexC(&platform->hostName, '.')); // host name
+
+        if (__builtin_expect(options->string.length == 1, 1)) {
+            ffPrintCharTimes(options->string.chars[0], titleLength);
+        } else {
+            uint32_t wcsLength = ffUtf8StrWidth(options->string.chars, options->string.length);
+
+            int remaining = (int) titleLength;
+            // Write the whole separator as often as it fits fully into titleLength
+            for (; remaining >= (int) wcsLength; remaining -= (int) wcsLength) {
+                ffStrbufWriteTo(&options->string, stdout);
+            }
+
+            if (remaining > 0) {
+                // Write as much of the separator as needed to fill titleLength
+                if (wcsLength != options->string.length) {
+                    // Unicode chars
+                    const char* ptr = options->string.chars;
+                    uint32_t remainBytes = options->string.length;
+                    while (remaining > 0 && remainBytes > 0 && *ptr != '\0') {
+                        uint8_t charWidth = 0;
+                        uint8_t bytes = ffUtf8CharLenWidth(ptr, remainBytes, &charWidth);
+                        if (__builtin_expect(bytes == 0, false)) {
+                            break;
+                        }
+
+                        remaining -= (int) charWidth;
+                        ptr += bytes;
+                        remainBytes -= bytes;
+                    }
+                    fwrite(options->string.chars, (size_t) (ptr - options->string.chars), 1, stdout);
+                } else {
+                    fwrite(options->string.chars, (size_t) remaining, 1, stdout);
+                }
+            }
+        }
+    }
+
+    if (options->outputColor.length && !instance.config.display.pipe) {
+        fputs(FASTFETCH_TEXT_MODIFIER_RESET, stdout);
+    }
+    putchar('\n');
+
+    return true;
+}
+
+void ffParseSeparatorJsonObject(FFSeparatorOptions* options, yyjson_val* module) {
+    yyjson_val *key, *val;
+    size_t idx, max;
+    yyjson_obj_foreach (module, idx, max, key, val) {
+        if (unsafe_yyjson_equals_str(key, "type") || unsafe_yyjson_equals_str(key, "condition")) {
+            continue;
+        }
+
+        if (unsafe_yyjson_equals_str(key, "string")) {
+            ffStrbufSetJsonVal(&options->string, val);
+            continue;
+        }
+
+        if (unsafe_yyjson_equals_str(key, "outputColor")) {
+            ffOptionParseColor(yyjson_get_str(val), &options->outputColor);
+            continue;
+        }
+
+        if (unsafe_yyjson_equals_str(key, "times")) {
+            options->times = (uint32_t) yyjson_get_uint(val);
+            continue;
+        }
+
+        if (unsafe_yyjson_equals_str(key, "length")) {
+            ffPrintError(FF_SEPARATOR_MODULE_NAME, 0, NULL, FF_PRINT_TYPE_NO_CUSTOM_KEY, "The option length has been renamed to times.");
+            continue;
+        }
+
+        ffPrintError(FF_SEPARATOR_MODULE_NAME, 0, NULL, FF_PRINT_TYPE_NO_CUSTOM_KEY, "Unknown JSON key %s", unsafe_yyjson_get_str(key));
+    }
+}
+
+void ffGenerateSeparatorJsonConfig(FFSeparatorOptions* options, yyjson_mut_doc* doc, yyjson_mut_val* module) {
+    yyjson_mut_obj_add_strbuf(doc, module, "string", &options->string);
+    yyjson_mut_obj_add_strbuf(doc, module, "outputColor", &options->outputColor);
+    yyjson_mut_obj_add_uint(doc, module, "times", options->times);
+}
+
+void ffInitSeparatorOptions(FFSeparatorOptions* options) {
+    ffStrbufInitStatic(&options->string, "-");
+    ffStrbufInit(&options->outputColor);
+    options->times = 0;
+}
+
+void ffDestroySeparatorOptions(FFSeparatorOptions* options) {
+    ffStrbufDestroy(&options->string);
+}
+
+FFModuleBaseInfo ffSeparatorModuleInfo = {
+    .name = FF_SEPARATOR_MODULE_NAME,
+    .description = "Print a separator line",
+    .initOptions = (void*) ffInitSeparatorOptions,
+    .destroyOptions = (void*) ffDestroySeparatorOptions,
+    .parseJsonObject = (void*) ffParseSeparatorJsonObject,
+    .printModule = (void*) ffPrintSeparator,
+    .generateJsonConfig = (void*) ffGenerateSeparatorJsonConfig,
+};
diff --git a/src/modules/separator/separator.h b/src/modules/separator/separator.h
new file mode 100644
index 0000000..eebf39a
--- /dev/null
+++ b/src/modules/separator/separator.h
@@ -0,0 +1,11 @@
+#pragma once
+
+#include "option.h"
+
+#define FF_SEPARATOR_MODULE_NAME "Separator"
+
+bool ffPrintSeparator(FFSeparatorOptions* options);
+void ffInitSeparatorOptions(FFSeparatorOptions* options);
+void ffDestroySeparatorOptions(FFSeparatorOptions* options);
+
+extern FFModuleBaseInfo ffSeparatorModuleInfo;