Refactor Seabear import

Moving the GUI independent Seabear import functionality to Subsurface
core. This will allow Robert to call it directly from download from DC.

Tested with H3 against released and daily versions of Subsurface. The
result differs somewhat, but it is actually fixing 2 bugs:
- Temperature was mis-interpreted previously
- Sample interval for a dive with 1 second interval was parsed
  incorrectly

Signed-off-by: Miika Turkia <miika.turkia@gmail.com>

5 files changed, 115 insertions, 0 deletions

diff --git a/core/dive.h b/core/dive.h
index fa6133bd3..4402788c2 100644
--- a/core/dive.h
+++ b/core/dive.h
@@ -704,6 +704,7 @@ extern int parse_dlf_buffer(unsigned char *buffer, size_t size);
 
 extern int parse_file(const char *filename);
 extern int parse_csv_file(const char *filename, char **params, int pnr, const char *csvtemplate);
+extern int parse_seabear_log(const char *filename);
 extern int parse_seabear_csv_file(const char *filename, char **params, int pnr, const char *csvtemplate);
 extern int parse_txt_file(const char *filename, const char *csv);
 extern int parse_manual_file(const char *filename, char **params, int pnr);
diff --git a/core/file.c b/core/file.c
index ba2956d60..6dc082fc7 100644
--- a/core/file.c
+++ b/core/file.c
@@ -1055,6 +1055,27 @@ int parse_csv_file(const char *filename, char **params, int pnr, const char *csv
 }
 
 #define SBPARAMS 40
+int parse_seabear_log(const char *filename)
+{
+	char *params[SBPARAMS];
+	int pnr = 0;
+
+	pnr = parse_seabear_header(filename, params, pnr);
+
+	if (parse_seabear_csv_file(filename, params, pnr, "csv") < 0) {
+		return -1;
+	}
+	// Seabear CSV stores NDL and TTS in Minutes, not seconds
+	struct dive *dive = dive_table.dives[dive_table.nr - 1];
+	for(int s_nr = 0 ; s_nr < dive->dc.samples ; s_nr++) {
+		struct sample *sample = dive->dc.sample + s_nr;
+		sample->ndl.seconds *= 60;
+		sample->tts.seconds *= 60;
+	}
+
+	return 0;
+}
+
 int parse_seabear_csv_file(const char *filename, char **params, int pnr, const char *csvtemplate)
 {
 	int ret, i;
diff --git a/core/qthelper.cpp b/core/qthelper.cpp
index 993ecbf7d..0673a78ce 100644
--- a/core/qthelper.cpp
+++ b/core/qthelper.cpp
@@ -1510,6 +1510,97 @@ QString getUUID()
 	return uuidString;
 }
 
+int parse_seabear_header(const char *filename, char **params, int pnr)
+{
+	QFile f(filename);
+
+	f.open(QFile::ReadOnly);
+	QString parseLine = f.readLine();
+
+	/*
+	 * Parse header - currently only interested in sample
+	 * interval and hardware version. If we have old format
+	 * the interval value is missing from the header.
+	 */
+
+	while ((parseLine = f.readLine().trimmed()).length() > 0 && !f.atEnd()) {
+		if (parseLine.contains("//Hardware Version: ")) {
+			params[pnr++] = strdup("hw");
+			params[pnr++] = strdup(parseLine.replace(QString::fromLatin1("//Hardware Version: "), QString::fromLatin1("\"Seabear ")).trimmed().append("\"").toUtf8().data());
+			break;
+		}
+	}
+
+	/*
+	 * Note that we scan over the "Log interval" on purpose
+	 */
+
+	while ((parseLine = f.readLine().trimmed()).length() > 0 && !f.atEnd()) {
+		if (parseLine.contains("//Log interval: ")) {
+			params[pnr++] = strdup("delta");
+			params[pnr++] = strdup(parseLine.remove(QString::fromLatin1("//Log interval: ")).trimmed().remove(QString::fromLatin1(" s")).toUtf8().data());
+		}
+	}
+
+	/*
+	 * Parse CSV fields
+	 */
+
+	parseLine = f.readLine().trimmed();
+
+	QStringList currColumns = parseLine.split(';');
+	unsigned short index = 0;
+	Q_FOREACH (QString columnText, currColumns) {
+		if (columnText == "Time") {
+			params[pnr++] = strdup("timeField");
+			params[pnr++] = intdup(index++);
+		} else if (columnText == "Depth") {
+			params[pnr++] = strdup("depthField");
+			params[pnr++] = intdup(index++);
+		} else if (columnText == "Temperature") {
+			params[pnr++] = strdup("tempField");
+			params[pnr++] = intdup(index++);
+		} else if (columnText == "NDT") {
+			params[pnr++] = strdup("ndlField");
+			params[pnr++] = intdup(index++);
+		} else if (columnText == "TTS") {
+			params[pnr++] = strdup("ttsField");
+			params[pnr++] = intdup(index++);
+		} else if (columnText == "pO2_1") {
+			params[pnr++] = strdup("o2sensor1Field");
+			params[pnr++] = intdup(index++);
+		} else if (columnText == "pO2_2") {
+			params[pnr++] = strdup("o2sensor2Field");
+			params[pnr++] = intdup(index++);
+		} else if (columnText == "pO2_3") {
+			params[pnr++] = strdup("o2sensor3Field");
+			params[pnr++] = intdup(index++);
+		} else if (columnText == "Ceiling") {
+			/* TODO: Add support for dive computer reported ceiling*/
+			params[pnr++] = strdup("ceilingField");
+			params[pnr++] = intdup(index++);
+		} else if (columnText == "Tank pressure") {
+			params[pnr++] = strdup("pressureField");
+			params[pnr++] = intdup(index++);
+		} else {
+			// We do not know about this value
+			qDebug() << "Seabear import found an un-handled field: " << columnText;
+		}
+	}
+
+	/* Separator is ';' and the index for that in DiveLogImportDialog constructor is 2 */
+	params[pnr++] = strdup("separatorIndex");
+	params[pnr++] = intdup(2);
+
+	/* And metric units */
+	params[pnr++] = strdup("units");
+	params[pnr++] = intdup(0);
+
+	params[pnr] = NULL;
+	f.close();
+	return pnr;
+}
+
 char *intdup(int index)
 {
 	char tmpbuf[21];
diff --git a/core/qthelper.h b/core/qthelper.h
index a85294963..8d06ce93e 100644
--- a/core/qthelper.h
+++ b/core/qthelper.h
@@ -47,5 +47,6 @@ extern "C" void subsurface_mkdir(const char *dir);
 void init_proxy();
 QString getUUID();
 char *intdup(int index);
+extern "C" int parse_seabear_header(const char *filename, char **params, int pnr);
 
 #endif // QTHELPER_H
diff --git a/core/qthelperfromc.h b/core/qthelperfromc.h
index 4b2ef3d53..91fbde415 100644
--- a/core/qthelperfromc.h
+++ b/core/qthelperfromc.h
@@ -20,5 +20,6 @@ char *hashfile_name_string();
 char *picturedir_string();
 const char *subsurface_user_agent();
 enum deco_mode decoMode();
+int parse_seabear_header(const char *filename, char **params, int pnr);
 
 #endif // QTHELPERFROMC_H