Began working on backend php for Database setup and management.

Database/create-database.sql

@@ -0,0 +1,31 @@
+CREATE TABLE IF NOT EXISTS log_levels (
+    log_level_id INTEGER PRIMARY KEY,
+    log_level_name VARCHAR(10) NOT NULL
+);
+
+INSERT INTO log_levels (log_level_id, log_level_name) VALUES
+    (0, 'INFO'),
+    (1, 'CRITICAL'),
+    (2, 'WARNING');
+
+CREATE TABLE IF NOT EXISTS logs (
+    log_id INTEGER PRIMARY KEY AUTOINCREMENT,
+    log_level_id INTEGER NOT NULL DEFAULT 0,
+    log_source VARCHAR NOT NULL, -- This will be a unix path '/path/to/script'
+    log_message TEXT NOT NULl,
+    log_entry_timestamp DATETIME DEFAULT CURRENT_TIMESTAMP,
+
+    FOREIGN KEY (log_level_id) REFERENCES log_levels(log_level_id)
+);
+
+
+CREATE VIEW IF NOT EXISTS log_statistics AS
+    SELECT levels.log_level_name, COUNT(logs.log_id) FROM logs
+    JOIN log_levels levels ON log_levels.log_level_id = logs.log_level_id
+    GROUP BY logs.log_level_id;
+
+CREATE VIEW IF NOT EXISTS log_statistics_last_7_days AS
+    SELECT log_levels.log_level_name, COUNT(logs.log_id) FROM logs
+    JOIN log_levels ON log_levels.log_level_id = logs.log_level_id 
+    WHERE logs.log_entry_timestamp > DATETIME(CURRENT_TIMESTAMP, '-7 day')
+    GROUP BY logs.log_level_id;