add tables for public inventory

packages/db/migrations/0177.do.public_item.sql

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+-- Type: DO
+-- Name: public_item
+-- Description: Create a table for public items
+
+BEGIN;
+
+CREATE TABLE omnivore.public_item_source (
+    id uuid PRIMARY KEY DEFAULT uuid_generate_v1mc(),
+    name TEXT NOT NULL,
+    topics TEXT[] NOT NULL,
+    thumbnail TEXT NOT NULL,
+    url TEXT NOT NULL,
+    language_codes TEXT[] NOT NULL,
+    created_at timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE omnivore.public_item (
+	id uuid PRIMARY KEY DEFAULT uuid_generate_v1mc(),
+    source_id uuid NOT NULL, -- user_id or public_item_source_id
+    type TEXT NOT NULL, -- public feeds, newsletters, or user recommended
+    title TEXT NOT NULL,
+    url TEXT NOT NULL,
+    thumbnail TEXT,
+    preview_content TEXT,
+    language_code TEXT,
+    author TEXT,
+    dir TEXT,
+    published_at timestamptz,
+    created_at timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE omnivore.public_item_features (
+    id uuid PRIMARY KEY DEFAULT uuid_generate_v1mc(),
+    public_item_id uuid NOT NULL REFERENCES omnivore.public_item(id) ON DELETE CASCADE,
+    classified_topic TEXT,
+    sentiment_score FLOAT,
+    writing_style TEXT,
+    popularity_score FLOAT,
+    embedding VECTOR(768),
+    created_at timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE INDEX public_item_feature_public_item_id_idx ON omnivore.public_item_features(public_item_id);
+
+CREATE TABLE omnivore.public_item_stats (
+    id uuid PRIMARY KEY DEFAULT uuid_generate_v1mc(),
+    public_item_id uuid NOT NULL REFERENCES omnivore.public_item(id) ON DELETE CASCADE,
+    save_count INT NOT NULL DEFAULT 0,
+    like_count INT NOT NULL DEFAULT 0,
+    broadcast_count INT NOT NULL DEFAULT 0,
+    created_at timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE INDEX public_item_stats_public_item_id_idx ON omnivore.public_item_stats(public_item_id);
+
+CREATE TABLE omnivore.public_item_interactions (
+	id uuid PRIMARY KEY DEFAULT uuid_generate_v1mc(),
+    user_id uuid NOT NULL REFERENCES omnivore.user(id) ON DELETE CASCADE,
+    public_item_id uuid NOT NULL REFERENCES omnivore.public_item(id) ON DELETE CASCADE,
+    action TEXT NOT NULL, -- save, like, broadcast, comment, see
+    action_data TEXT, -- for comment, the comment text
+    created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE INDEX public_item_interaction_user_id_idx ON omnivore.public_item_interactions(user_id);
+CREATE INDEX public_item_interaction_public_item_id_idx ON omnivore.public_item_interactions(public_item_id);
+
+COMMIT;

packages/db/migrations/0177.undo.public_item.sql

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+-- Type: UNDO
+-- Name: public_item
+-- Description: Create a table for public items
+
+BEGIN;
+
+DROP TABLE omnivore.public_item_interactions;
+DROP TABLE omnivore.public_item_stats;
+DROP TABLE omnivore.public_item_features;
+DROP TABLE omnivore.public_item;
+DROP TABLE omnivore.public_item_source;
+
+COMMIT;