TECH-125: Create Application Schema (#36)

* Created Goose Migration for Applications

* sqlc generate

* improvement: updated fields

* fix: updated env path

* fix: syntax

* chore: sqlc generate

* feat: add more columns and auto updates + withdrawn status

* chore: generate sqlc types for new schema

* feat: indexes and default for application body

---------

Co-authored-by: h1divp <71522316+h1divp@users.noreply.github.com>
Co-authored-by: Alexander Wang <alexander.yisu.wang@outlook.com>

Author: 3 people

apps/api/Makefile

@@ -1,4 +1,4 @@
-include .env.local
+include .env.dev
 
 migrate-up:
 	@goose -dir ./internal/db/migrations postgres ${DATABASE_URL_MIGRATIONS} up

apps/api/internal/db/migrations/20250621222955_create_applications.sql

@@ -0,0 +1,38 @@
+-- +goose Up
+-- +goose StatementBegin
+
+CREATE TYPE application_status AS ENUM ('started', 'submitted', 'under_review', 'accepted', 'rejected', 'waitlisted', 'withdrawn');
+
+CREATE TABLE applications (
+    user_id UUID REFERENCES auth.users(id) ON DELETE CASCADE,
+    event_id UUID REFERENCES events(id) ON DELETE CASCADE,
+    status application_status DEFAULT 'started',
+    application JSONB NOT NULL DEFAULT '{}'::JSONB,
+    resume_url TEXT,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    saved_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+
+    PRIMARY KEY (user_id, event_id)
+);
+
+CREATE INDEX idx_applications_status ON applications(status);
+CREATE INDEX idx_applications_event_id ON applications(event_id);
+
+-- Create trigger to update application updates
+CREATE TRIGGER set_updated_at_applications
+BEFORE UPDATE ON applications
+FOR EACH ROW
+EXECUTE FUNCTION update_modified_column();
+
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+
+
+DROP TRIGGER IF EXISTS set_updated_at_applications ON applications;
+DROP TABLE IF EXISTS applications;
+DROP TYPE IF EXISTS application_status;
+
+-- +goose StatementEnd