move log module to herolib

lib/core/log/backend_db.v

@@ -0,0 +1,25 @@
+module log
+
+import db.sqlite
+
+pub struct DBBackend {
+pub:
+	db sqlite.DB
+}
+
+@[params]
+pub struct DBBackendConfig {
+pub:
+	db sqlite.DB
+}
+
+// factory for
+pub fn new_backend(config DBBackendConfig) !DBBackend {
+	sql config.db {
+		create table Log
+	} or { panic(err) }
+
+	return DBBackend{
+		db: config.db
+	}
+}

lib/core/log/events.v

@@ -0,0 +1,10 @@
+module log
+
+import time
+
+@[params]
+pub struct ViewEvent {
+pub mut:
+	page string
+	duration time.Duration
+}

lib/core/log/factory.v

@@ -0,0 +1,18 @@
+module log
+
+import db.sqlite
+
+pub struct Logger {
+	db_path string
+	// DBBackend
+}
+
+pub fn new(db_path string) !Logger {
+	db := sqlite.connect(db_path)!
+	sql db {
+		create table Log
+	} or { panic(err) }
+	return Logger{
+		db_path: db_path
+	}
+}

lib/core/log/logger.v

@@ -0,0 +1,55 @@
+module log
+
+import db.sqlite
+
+pub fn (logger Logger) new_log(log Log) ! {
+	db := sqlite.connect(logger.db_path)!
+
+	sql db {
+		insert log into Log
+	}!
+}
+
+pub struct LogFilter {
+	Log
+	matches_all bool
+	limit int
+}
+
+pub fn (logger Logger) filter_logs(filter LogFilter) ![]Log {
+	db := sqlite.connect(logger.db_path)!
+	mut select_stmt := 'select * from Log'
+
+	mut matchers := []string{}
+	if filter.event != '' {
+		matchers << "event == '${filter.event}'"
+	}
+    
+	if filter.subject != '' {
+		matchers << "subject == '${filter.subject}'"
+	}
+
+	if filter.object != '' {
+		matchers << "object == '${filter.object}'"
+	}
+
+	if matchers.len > 0 {
+		matchers_str := if filter.matches_all {
+			matchers.join(' AND ')
+		} else {
+			matchers.join(' OR ')
+		}
+		select_stmt += ' where ${matchers_str}'
+	}
+
+	responses := db.exec(select_stmt)!
+	
+	mut logs := []Log{}
+	for response in responses {
+		logs << sql db {
+			select from Log where id == response.vals[0].int()
+		}!
+	}
+
+	return logs
+}

lib/core/log/model.v

@@ -0,0 +1,32 @@
+module log
+
+import time
+
+pub struct Log {
+	id          int         @[primary; sql: serial]
+pub:
+	timestamp time.Time
+pub mut:
+	event   string
+	subject string
+	object  string 
+	message string // a custom message that can be attached to a log
+}
+
+// pub struct Event {
+// 	name        string
+// 	description string
+// }
+
+// // log_request logs http requests
+// pub fn create_log(log Log) Log {
+// 	return Log{
+// 		...log
+// 		timestamp: time.now()
+// 	})
+// }
+
+// // log_request logs http requests
+// pub fn (mut a Analyzer) get_logs(subject string) []Log {
+// 	return []Log{}
+// }