adds ddl for app configuration tables

SqlManagement/Scripts/SmartConfigSystem.sql

@@ -0,0 +1,179 @@
+
+drop schema "public"
+show search_path;
+
+set schema "ptmain";
+
+CREATE SCHEMA if not exists ptmain;
+GRANT USAGE, CREATE ON SCHEMA ptmain TO sathumper;
+GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA ptmain TO sathumper;
+GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA ptmain TO sathumper;
+
+ALTER DEFAULT PRIVILEGES IN SCHEMA ptmain
+GRANT ALL PRIVILEGES ON TABLES TO sathumper;
+
+
+-- Create schema if not exists
+
+insert into 
+-- Create main configuration table
+CREATE TABLE app_configuration (
+    id BIGSERIAL PRIMARY KEY,
+    key VARCHAR(255) NOT NULL,
+    value TEXT NOT NULL,
+    label VARCHAR(255),
+    content_type VARCHAR(255) DEFAULT 'text/plain',
+    valid_from TIMESTAMPTZ,
+    expires_at TIMESTAMPTZ,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    modified_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    etag UUID DEFAULT gen_random_uuid(),
+    CONSTRAINT app_configuration_key_unique UNIQUE (key, valid_from)
+);
+
+-- Create history table
+CREATE TABLE app_configuration_history (
+    history_id BIGSERIAL PRIMARY KEY,
+    operation CHAR(1) NOT NULL, -- I = Insert, U = Update, D = Delete
+    changed_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    changed_by TEXT NOT NULL DEFAULT CURRENT_USER,
+    -- Original columns
+    id BIGINT NOT NULL,
+    key VARCHAR(255) NOT NULL,
+    value TEXT NOT NULL,
+    label VARCHAR(255),
+    content_type VARCHAR(255),
+    valid_from TIMESTAMPTZ,
+    expires_at TIMESTAMPTZ,
+    created_at TIMESTAMPTZ NOT NULL,
+    modified_at TIMESTAMPTZ NOT NULL,
+    etag UUID
+);
+
+
+
+-- Create function for updating modified_at
+CREATE OR REPLACE FUNCTION update_modified_at()
+RETURNS TRIGGER AS $$
+BEGIN
+    NEW.modified_at = CURRENT_TIMESTAMP;
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+-- Create history tracking function
+CREATE OR REPLACE FUNCTION track_configuration_history()
+RETURNS TRIGGER AS $$
+BEGIN
+    -- Indsæt historikpost baseret på operationstypen
+    IF TG_OP = 'INSERT' THEN
+        INSERT INTO app_configuration_history(
+            operation,
+            id, key, value, label, content_type, valid_from, expires_at, 
+            created_at, modified_at, etag
+        )
+        VALUES (
+            'I',
+            NEW.id, NEW.key, NEW.value, NEW.label, NEW.content_type, NEW.valid_from, 
+            NEW.expires_at, NEW.created_at, NEW.modified_at, NEW.etag
+        );
+    ELSIF TG_OP = 'UPDATE' OR TG_OP = 'DELETE' THEN
+        -- Brug OLD for både UPDATE og DELETE
+        INSERT INTO app_configuration_history(
+            operation,
+            id, key, value, label, content_type, valid_from, expires_at, 
+            created_at, modified_at, etag
+        )
+        VALUES (
+            CASE 
+                WHEN TG_OP = 'UPDATE' THEN 'U'
+                WHEN TG_OP = 'DELETE' THEN 'D'
+            END,
+            OLD.id, OLD.key, OLD.value, OLD.label, OLD.content_type, OLD.valid_from, 
+            OLD.expires_at, OLD.created_at, OLD.modified_at, OLD.etag
+        );
+    END IF;
+
+    -- Returner NULL for AFTER-trigger
+    RETURN NULL;
+EXCEPTION
+    WHEN others THEN
+        -- Log fejl og rejs undtagelse
+        RAISE EXCEPTION 'Fejl i track_configuration_history: %', SQLERRM;
+END;
+$$ LANGUAGE plpgsql;
+
+-- Create triggers
+CREATE TRIGGER trg_app_configuration_modified_at
+    BEFORE UPDATE ON app_configuration
+    FOR EACH ROW
+    EXECUTE FUNCTION update_modified_at();
+
+CREATE TRIGGER trg_app_configuration_history
+    AFTER INSERT OR UPDATE OR DELETE ON app_configuration
+    FOR EACH ROW
+    EXECUTE FUNCTION track_configuration_history();
+
+CREATE TRIGGER trg_app_configuration_notify
+    AFTER INSERT OR UPDATE ON app_configuration
+    FOR EACH ROW
+    EXECUTE FUNCTION notify_config_change();
+
+-- Comments
+COMMENT ON TABLE app_configuration IS 'Application configuration with temporal validity';
+COMMENT ON TABLE app_configuration_history IS 'Historical changes to application configuration';
+COMMENT ON COLUMN app_configuration_history.operation IS 'Type of operation: I=Insert, U=Update, D=Delete';
+COMMENT ON COLUMN app_configuration_history.changed_at IS 'When the change occurred';
+COMMENT ON COLUMN app_configuration_history.changed_by IS 'User who made the change';
+
+
+```sql
+-- Email templates configuration
+INSERT INTO app_configuration (key, value, label, content_type, valid_from, expires_at) VALUES
+('Email:Templates:Welcome', 
+ '{"subject":"Velkommen til vores platform","template":"welcome-dk.html","sender":"velkommen@firma.dk"}',
+ 'Email Templates',
+ 'application/json',
+ '2024-01-01T00:00:00Z',
+ NULL);
+select * from app_configuration_history 
+update app_configuration 
+set label = 'test'
+
+INSERT INTO app_configuration (key, value, label, content_type, valid_from, expires_at) VALUES
+('Email:Templates:Password', 
+ '{"subject":"Nulstil dit kodeord","template":"reset-password-dk.html","sender":"support@firma.dk"}',
+ 'Email Templates',
+ 'application/json',
+ '2024-01-01T00:00:00Z',
+ NULL);
+
+-- API configuration
+INSERT INTO app_configuration (key, value, label, content_type, valid_from, expires_at) VALUES
+('Api:Endpoints:BaseUrl', 
+ '{"production":"https://api.firma.dk","staging":"https://staging-api.firma.dk"}',
+ 'API Settings',
+ 'application/json',
+ '2024-01-01T00:00:00Z',
+ NULL);
+
+-- Feature flags
+INSERT INTO app_configuration (key, value, label, content_type, valid_from, expires_at) VALUES
+('Features:NewUI', 
+ '{"enabled":false,"rolloutPercentage":0,"description":"New React based UI"}',
+ 'Feature Flags',
+ 'application/json',
+ '2024-02-01T00:00:00Z',
+ '2024-12-31T23:59:59Z');
+
+-- System settings  
+INSERT INTO app_configuration (key, value, label, content_type, valid_from, expires_at) VALUES
+('System:Cache', 
+ '{"timeoutMinutes":15,"maxItems":1000,"distributed":true}',
+ 'System Settings',
+ 'application/json',
+ '2024-01-01T00:00:00Z',
+ NULL);
+```
+
+