feat: add frontend + backend + database to retrieve and compute news from Yahoo

backend/internal/database/db.go

@@ -0,0 +1,43 @@
+package database
+
+import (
+	"database/sql"
+	"fmt"
+
+	"github.com/golang-migrate/migrate/v4"
+	"github.com/golang-migrate/migrate/v4/database/postgres"
+	_ "github.com/golang-migrate/migrate/v4/source/file"
+	_ "github.com/lib/pq"
+)
+
+func Connect(databaseURL string) (*sql.DB, error) {
+	db, err := sql.Open("postgres", databaseURL)
+	if err != nil {
+		return nil, fmt.Errorf("open db: %w", err)
+	}
+	if err := db.Ping(); err != nil {
+		return nil, fmt.Errorf("ping db: %w", err)
+	}
+	db.SetMaxOpenConns(25)
+	db.SetMaxIdleConns(5)
+	return db, nil
+}
+
+func RunMigrations(db *sql.DB) error {
+	driver, err := postgres.WithInstance(db, &postgres.Config{})
+	if err != nil {
+		return fmt.Errorf("migration driver: %w", err)
+	}
+	m, err := migrate.NewWithDatabaseInstance(
+		"file://internal/database/migrations",
+		"postgres",
+		driver,
+	)
+	if err != nil {
+		return fmt.Errorf("migrate init: %w", err)
+	}
+	if err := m.Up(); err != nil && err != migrate.ErrNoChange {
+		return fmt.Errorf("migrate up: %w", err)
+	}
+	return nil
+}

backend/internal/database/migrations/000001_init.down.sql

@@ -0,0 +1,10 @@
+DROP TABLE IF EXISTS settings CASCADE;
+DROP TABLE IF EXISTS summaries CASCADE;
+DROP TABLE IF EXISTS ai_providers CASCADE;
+DROP TABLE IF EXISTS scrape_jobs CASCADE;
+DROP TABLE IF EXISTS scrape_credentials CASCADE;
+DROP TABLE IF EXISTS article_symbols CASCADE;
+DROP TABLE IF EXISTS articles CASCADE;
+DROP TABLE IF EXISTS sources CASCADE;
+DROP TABLE IF EXISTS user_assets CASCADE;
+DROP TABLE IF EXISTS users CASCADE;

backend/internal/database/migrations/000001_init.up.sql

@@ -0,0 +1,106 @@
+CREATE EXTENSION IF NOT EXISTS "pgcrypto";
+
+CREATE TABLE users (
+    id         UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    email      TEXT NOT NULL UNIQUE,
+    password_hash TEXT NOT NULL,
+    role       TEXT NOT NULL DEFAULT 'user' CHECK (role IN ('admin', 'user')),
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE user_assets (
+    id         UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id    UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    symbol     VARCHAR(20) NOT NULL,
+    name       TEXT NOT NULL DEFAULT '',
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    UNIQUE (user_id, symbol)
+);
+
+CREATE TABLE sources (
+    id         UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name       TEXT NOT NULL,
+    type       TEXT NOT NULL CHECK (type IN ('bloomberg', 'stocktwits')),
+    enabled    BOOLEAN NOT NULL DEFAULT TRUE,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE articles (
+    id           UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    source_id    UUID NOT NULL REFERENCES sources(id) ON DELETE CASCADE,
+    title        TEXT NOT NULL,
+    content      TEXT NOT NULL DEFAULT '',
+    url          TEXT NOT NULL UNIQUE,
+    published_at TIMESTAMPTZ,
+    created_at   TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE article_symbols (
+    id         UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    article_id UUID NOT NULL REFERENCES articles(id) ON DELETE CASCADE,
+    symbol     VARCHAR(20) NOT NULL,
+    UNIQUE (article_id, symbol)
+);
+
+CREATE TABLE scrape_credentials (
+    id                 UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    source_id          UUID NOT NULL REFERENCES sources(id) ON DELETE CASCADE UNIQUE,
+    username           TEXT NOT NULL DEFAULT '',
+    password_encrypted TEXT NOT NULL DEFAULT '',
+    updated_at         TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE scrape_jobs (
+    id             UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    source_id      UUID NOT NULL REFERENCES sources(id) ON DELETE CASCADE,
+    status         TEXT NOT NULL DEFAULT 'pending' CHECK (status IN ('pending', 'running', 'done', 'error')),
+    started_at     TIMESTAMPTZ,
+    finished_at    TIMESTAMPTZ,
+    articles_found INT NOT NULL DEFAULT 0,
+    error_msg      TEXT NOT NULL DEFAULT '',
+    created_at     TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE ai_providers (
+    id                UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name              TEXT NOT NULL CHECK (name IN ('openai', 'anthropic', 'gemini', 'ollama')),
+    api_key_encrypted TEXT NOT NULL DEFAULT '',
+    model             TEXT NOT NULL DEFAULT '',
+    endpoint          TEXT NOT NULL DEFAULT '',
+    is_active         BOOLEAN NOT NULL DEFAULT FALSE,
+    created_at        TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE summaries (
+    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id         UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    content         TEXT NOT NULL,
+    ai_provider_id  UUID REFERENCES ai_providers(id) ON DELETE SET NULL,
+    generated_at    TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE settings (
+    key   TEXT PRIMARY KEY,
+    value TEXT NOT NULL DEFAULT ''
+);
+
+-- Index pour les performances
+CREATE INDEX idx_articles_source_id ON articles(source_id);
+CREATE INDEX idx_articles_published_at ON articles(published_at DESC);
+CREATE INDEX idx_article_symbols_symbol ON article_symbols(symbol);
+CREATE INDEX idx_summaries_user_id ON summaries(user_id);
+CREATE INDEX idx_summaries_generated_at ON summaries(generated_at DESC);
+CREATE INDEX idx_scrape_jobs_status ON scrape_jobs(status);
+CREATE INDEX idx_user_assets_user_id ON user_assets(user_id);
+
+-- Sources initiales
+INSERT INTO sources (name, type, enabled) VALUES
+    ('Bloomberg', 'bloomberg', TRUE),
+    ('StockTwits', 'stocktwits', TRUE);
+
+-- Paramètres par défaut
+INSERT INTO settings (key, value) VALUES
+    ('scrape_interval_minutes', '60'),
+    ('articles_lookback_hours', '24'),
+    ('summary_max_articles', '50');

backend/internal/database/migrations/000002_ai_prompt.down.sql

@@ -0,0 +1 @@
+DELETE FROM settings WHERE key = 'ai_system_prompt';

backend/internal/database/migrations/000002_ai_prompt.up.sql

@@ -0,0 +1,13 @@
+INSERT INTO settings (key, value) VALUES (
+  'ai_system_prompt',
+  'Tu es un assistant spécialisé en trading financier. Analyse l''ensemble des actualités suivantes, toutes sources confondues, et crée un résumé global structuré en français, orienté trading.
+
+Structure ton résumé ainsi :
+1. **Vue macro** : tendances globales du marché (économie, géopolitique, secteurs)
+2. **Actifs surveillés** : pour chaque actif de la watchlist mentionné dans les news :
+   - Sentiment (haussier/baissier/neutre)
+   - Faits clés et catalyseurs
+   - Risques et opportunités
+3. **Autres mouvements notables** : actifs hors watchlist à surveiller
+4. **Synthèse** : points d''attention prioritaires pour la journée'
+) ON CONFLICT (key) DO NOTHING;