init

src/util.h

@@ -0,0 +1,39 @@
+#pragma once
+
+#include <cstdint>
+#include <filesystem>
+#include <string>
+#include <vector>
+
+#include "json.h"
+
+namespace telegram_tui {
+
+struct StoredConfig {
+	std::string api_id;
+	std::string api_hash;
+	bool auto_reload_chat_history = false;
+};
+
+[[nodiscard]] std::string get_env(const char* name);
+[[nodiscard]] std::string trim_copy(std::string value);
+[[nodiscard]] std::string single_line(std::string text);
+[[nodiscard]] bool is_decimal_number(const std::string& value);
+[[nodiscard]] std::filesystem::path data_root();
+[[nodiscard]] StoredConfig load_app_config();
+bool save_app_config(const StoredConfig& config);
+[[nodiscard]] std::string safe_string(const json& object, const char* key);
+[[nodiscard]] std::int64_t safe_i64(const json& object, const char* key);
+[[nodiscard]] std::int32_t safe_i32(const json& object, const char* key);
+[[nodiscard]] std::string format_time(std::int32_t unix_time);
+[[nodiscard]] std::string format_date(std::int32_t unix_time);
+[[nodiscard]] std::string format_datetime(std::int32_t unix_time);
+[[nodiscard]] std::string format_file_size(std::int64_t size_bytes);
+[[nodiscard]] std::vector<std::string> wrap_text(const std::string& text, int width);
+[[nodiscard]] std::size_t utf8_byte_index_from_utf16_offset(const std::string& text, std::size_t utf16_offset);
+[[nodiscard]] std::size_t utf8_prev_index(const std::string& text, std::size_t byte_index);
+[[nodiscard]] std::size_t utf8_next_index(const std::string& text, std::size_t byte_index);
+[[nodiscard]] int utf8_display_width(const std::string& text, std::size_t byte_limit = std::string::npos);
+void pop_utf8_back(std::string& text);
+
+}  // namespace telegram_tui