/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

#pragma once

/** \file
 * \ingroup bke
 */

#include <cstdio>

#include "BLI_compiler_attrs.h"
#include "BLI_enum_flags.hh"
#include "BLI_mutex.hh"

#include "DNA_listBase.h"

struct CLG_LogRef;

namespace blender {

struct wmTimer;

/**
 * Reporting Information and Errors.
 *
 * These functions are thread-safe, unless otherwise specified.
 *
 * These functions also accept nullptr in case no error reporting is needed. The message are only
 * printed to the console then.
 */

/** Keep in sync with 'rna_enum_wm_report_items' in `wm_rna.c`. */
enum eReportType : uint16_t {
  RPT_DEBUG = (1 << 0),
  RPT_INFO = (1 << 1),
  RPT_OPERATOR = (1 << 2),
  RPT_PROPERTY = (1 << 3),
  RPT_WARNING = (1 << 4),
  RPT_ERROR = (1 << 5),
  RPT_ERROR_INVALID_INPUT = (1 << 6),
  RPT_ERROR_INVALID_CONTEXT = (1 << 7),
  RPT_ERROR_OUT_OF_MEMORY = (1 << 8),
};
ENUM_OPERATORS(eReportType)

#define RPT_DEBUG_ALL (RPT_DEBUG)
#define RPT_INFO_ALL (RPT_INFO)
#define RPT_OPERATOR_ALL (RPT_OPERATOR)
#define RPT_PROPERTY_ALL (RPT_PROPERTY)
#define RPT_WARNING_ALL (RPT_WARNING)
#define RPT_ERROR_ALL \
  (RPT_ERROR | RPT_ERROR_INVALID_INPUT | RPT_ERROR_INVALID_CONTEXT | RPT_ERROR_OUT_OF_MEMORY)

enum ReportListFlags {
  RPT_PRINT = (1 << 0),
  RPT_STORE = (1 << 1),
  RPT_FREE = (1 << 2),
  RPT_OP_HOLD = (1 << 3), /* don't move them into the operator global list (caller will use) */
  /** Don't print (the owner of the #ReportList will handle printing to the `stdout`). */
  RPT_PRINT_HANDLED_BY_OWNER = (1 << 4),
};

struct Report {
  Report *next, *prev;
  /** eReportType. */
  short type;
  short flag;
  /** `strlen(message)`, saves some time calculating the word wrap. */
  int len;
  const char *typestr;
  const char *message;
  /** Unique per-session identifier, assigned at creation. */
  int session_uid;
};

struct ReportList {
  ListBaseT<Report> list;
  /** #eReportType. */
  int printlevel;
  /** #eReportType. */
  int storelevel;
  int flag;
  char _pad[4];
  wmTimer *reporttimer;

  /** Mutex for thread-safety, runtime only. */
  std::mutex *lock;
};

/* Report structures are stored in DNA. */

/**
 * Initialize a #ReportList struct.
 *
 * \note Not thread-safe, should only be called from the 'owner' thread of the report list.
 */
void BKE_reports_init(ReportList *reports, int flag);
/**
 * Fully release any internal resources used by this #ReportList, as acquired by #BKE_reports_init.
 *
 * Also calls #BKE_reports_clear. The given `reports` should not be used anymore unless it is
 * re-initialized first.
 *
 * \note Not thread-safe, should only be called from the current owner of the report list, once
 * no other concurrent access is possible.
 */
void BKE_reports_free(ReportList *reports);

/**
 * Only frees the list of reports in given \a reports. Use #BKE_reports_free to fully cleanup all
 * allocated resources.
 *
 * To make displayed reports disappear, either remove window-manager reports
 * (#wmWindowManager.reports, or #CTX_wm_reports()), or use #WM_report_banners_cancel().
 */
void BKE_reports_clear(ReportList *reports);

/** Moves all reports from `reports_src` to `reports_dst`. */
void BKE_reports_move_to_reports(ReportList *reports_dst, ReportList *reports_src);

/** (Un)lock given `reports`, in case external code needs to access its data. */
void BKE_reports_lock(ReportList *reports);
void BKE_reports_unlock(ReportList *reports);

void BKE_report(ReportList *reports, eReportType type, const char *message);
void BKE_reportf(ReportList *reports, eReportType type, const char *format, ...)
    ATTR_PRINTF_FORMAT(3, 4);

void BKE_reports_prepend(ReportList *reports, const char *prepend);
void BKE_reports_prependf(ReportList *reports, const char *prepend_format, ...)
    ATTR_PRINTF_FORMAT(2, 3);

eReportType BKE_report_print_level(ReportList *reports);
void BKE_report_print_level_set(ReportList *reports, eReportType level);

eReportType BKE_report_store_level(ReportList *reports);
void BKE_report_store_level_set(ReportList *reports, eReportType level);

char *BKE_reports_string(ReportList *reports, eReportType level);

/**
 * \return true when reports of this type will print to the `stdout`.
 */
bool BKE_reports_print_test(const ReportList *reports, eReportType type);
void BKE_reports_print(ReportList *reports, eReportType level);

void BKE_report_log(eReportType type, const char *message, CLG_LogRef *log);
void BKE_reports_log(ReportList *reports, eReportType level, CLG_LogRef *log);

Report *BKE_reports_last_displayable(ReportList *reports);

bool BKE_reports_contain(ReportList *reports, eReportType level);

const char *BKE_report_type_str(eReportType type);

bool BKE_report_write_file_fp(FILE *fp, ReportList *reports, const char *header);
bool BKE_report_write_file(const char *filepath, ReportList *reports, const char *header);

}  // namespace blender
