Updated DB schema

db/schema.sql

@@ -7,6 +7,7 @@ CREATE TABLE IF NOT EXISTS users (
     id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
     name VARCHAR(255) NOT NULL,
     phone VARCHAR(50) UNIQUE NOT NULL,
+    location_id UUID NULL,
     created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
     updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
 );
@@ -22,29 +23,98 @@ CREATE TABLE IF NOT EXISTS breeds (
     id SERIAL PRIMARY KEY,
     species_id INT NOT NULL REFERENCES species(id) ON DELETE RESTRICT,
     name VARCHAR(100) NOT NULL,
-    description TEXT,
+    description_text TEXT,
+    description_media_url TEXT,
     created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    -- Constraint: Only one type of description should be allowed
+    CONSTRAINT chk_description_type CHECK (
+        (description_text IS NOT NULL AND description_media_url IS NULL)
+        OR (description_text IS NULL AND description_media_url IS NOT NULL)
+        OR (description_text IS NULL AND description_media_url IS NULL)
+    )
 );
 
-CREATE TABLE IF NOT EXISTS locations (
+
+-------------------------------------------------------
+-- ENUM for location type
+-------------------------------------------------------
+CREATE TYPE location_type_enum AS ENUM ('farm', 'home', 'other');
+CREATE TYPE location_source_type_enum AS ENUM (
+    'gps',
+    'manual',
+    'imported',
+    'unknown'
+);
+
+
+CREATE TABLE IF NOT EXISTS location_details (
     id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
-    user_id UUID REFERENCES users(id) ON DELETE SET NULL,
     is_saved_address BOOLEAN NOT NULL DEFAULT FALSE,
-    location_type VARCHAR(50),
+    location_type location_type_enum NOT NULL,
     country VARCHAR(100),
     state VARCHAR(100),
     district VARCHAR(100),
     city_village VARCHAR(150),
     pincode VARCHAR(20),
-    lat DECIMAL(10,7),
+    source_type location_source_type_enum NOT NULL DEFAULT 'unknown',
-    lng DECIMAL(10,7),
-    source_type VARCHAR(50) NOT NULL DEFAULT 'unknown',
     source_confidence VARCHAR(50) NOT NULL DEFAULT 'medium',
     created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
     updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
 );
 
+CREATE TABLE IF NOT EXISTS user_locations (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    lat DECIMAL(10,7) NOT NULL,
+    lng DECIMAL(10,7) NOT NULL,
+    location_detail_id UUID UNIQUE REFERENCES location_details(id) ON DELETE SET NULL,
+    selected_location BOOLEAN NOT NULL DEFAULT FALSE,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Selected location is unique per user, so this trigger ensures that only one location is selected per user
+CREATE OR REPLACE FUNCTION enforce_single_selected_location()
+RETURNS trigger AS $$
+BEGIN
+    -- When changing a location to selected (only act if actually setting to TRUE)
+    IF NEW.selected_location = TRUE THEN
+        -- Unselect all other locations for this user (excluding the current row)
+        UPDATE user_locations
+        SET selected_location = FALSE
+        WHERE user_id = NEW.user_id
+          AND id <> NEW.id
+          AND selected_location = TRUE;
+    END IF;
+
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER trg_single_selected_location
+BEFORE INSERT OR UPDATE ON user_locations
+FOR EACH ROW
+EXECUTE FUNCTION enforce_single_selected_location();
+
+
+-------------------------------------------------------
+-- Add FK constraint after both tables exist
+-------------------------------------------------------
+ALTER TABLE users
+ADD CONSTRAINT fk_users_location
+FOREIGN KEY (location_id)
+REFERENCES user_locations(id)
+ON DELETE SET NULL;
+
+-------------------------------------------------------
+-- Indexes
+-------------------------------------------------------
+CREATE INDEX idx_user_locations_user ON user_locations(user_id);
+CREATE INDEX idx_user_locations_selected ON user_locations(selected_location);
+CREATE INDEX idx_location_details_type ON location_details(location_type);
+CREATE INDEX idx_user_locations_location_detail ON user_locations(location_detail_id);
+
 CREATE TABLE IF NOT EXISTS animals (
     id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
     species_id INT NOT NULL REFERENCES species(id) ON DELETE RESTRICT,
@@ -64,12 +134,42 @@ CREATE TABLE IF NOT EXISTS animals (
     ear_tag_no VARCHAR(100),
     description TEXT,
     suggested_care TEXT,
-    location_id UUID REFERENCES locations(id) ON DELETE SET NULL,
+    location_id UUID REFERENCES user_locations(id) ON DELETE SET NULL,
     created_from VARCHAR(50) NOT NULL,
     created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
     updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
 );
 
+CREATE TYPE listing_status_enum AS ENUM (
+    'active',
+    'expired',
+    'hidden',
+    'sold',
+    'deleted'
+);
+
+CREATE TYPE listing_score_status_enum AS ENUM (
+    'pending',
+    'calculating',
+    'completed',
+    'failed'
+);
+
+CREATE TYPE listing_type_enum AS ENUM (
+    'sale',
+    'stud_service',
+    'adoption',
+    'other'
+);
+
+CREATE TYPE seller_type_enum AS ENUM (
+    'owner',
+    'farmer',
+    'broker',
+    'agent',
+    'other'
+);
+
 CREATE TABLE IF NOT EXISTS listings (
     id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
     seller_id UUID NOT NULL REFERENCES users(id) ON DELETE RESTRICT,
@@ -78,15 +178,16 @@ CREATE TABLE IF NOT EXISTS listings (
     price NUMERIC(12,2) NOT NULL,
     currency VARCHAR(10) NOT NULL,
     is_negotiable BOOLEAN NOT NULL DEFAULT TRUE,
-    listing_type VARCHAR(50) NOT NULL,
+    listing_type listing_type_enum NOT NULL,
-    status VARCHAR(50) NOT NULL DEFAULT 'active',
+    status listing_status_enum NOT NULL DEFAULT 'active',
     listing_score INT NOT NULL DEFAULT 0,
     views_count INT NOT NULL DEFAULT 0,
     bookmarks_count INT NOT NULL DEFAULT 0,
     enquiries_call_count INT NOT NULL DEFAULT 0,
     enquiries_whatsapp_count INT NOT NULL DEFAULT 0,
     clicks_count INT NOT NULL DEFAULT 0,
-    listing_score_status VARCHAR(50) NOT NULL DEFAULT 'pending',
+    listing_score_status listing_score_status_enum NOT NULL DEFAULT 'pending',
+    seller_type seller_type_enum NOT NULL DEFAULT 'owner',
     created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
     updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
 );
@@ -112,3 +213,128 @@ CREATE TABLE IF NOT EXISTS custom_requirements (
     updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
 );
 
+CREATE TYPE message_type_enum AS ENUM ('text', 'media', 'both');
+CREATE TYPE media_type_enum AS ENUM ('image', 'video', 'audio', 'document');
+
+CREATE TABLE conversations (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    buyer_id UUID NOT NULL,
+    seller_id UUID NOT NULL,
+    created_at TIMESTAMP NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMP NOT NULL DEFAULT NOW(),
+
+    CONSTRAINT fk_conversation_buyer
+        FOREIGN KEY (buyer_id) REFERENCES users(id),
+
+    CONSTRAINT fk_conversation_seller
+        FOREIGN KEY (seller_id) REFERENCES users(id),
+
+    CONSTRAINT unique_buyer_seller UNIQUE (buyer_id, seller_id)
+);
+
+CREATE TABLE conversation_media (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    media_type media_type_enum NOT NULL,    -- image | video | audio | document
+    media_url TEXT NOT NULL,
+    thumbnail_url TEXT NULL,
+    duration_sec INT NULL,                   -- audio/video only
+    file_size_kb INT NULL,
+    created_at TIMESTAMP NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE messages (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    conversation_id UUID NOT NULL,
+    sender_id UUID NOT NULL,
+    receiver_id UUID NOT NULL,
+
+    message_type message_type_enum NOT NULL DEFAULT 'text',
+
+    content TEXT NULL,         -- nullable for media-only messages
+    media_id UUID UNIQUE,        -- FK for media, enforce 1:1 relationship
+
+    is_read BOOLEAN NOT NULL DEFAULT FALSE,
+    read_at TIMESTAMP NULL,
+    created_at TIMESTAMP NOT NULL DEFAULT NOW(),
+    is_deleted BOOLEAN NOT NULL DEFAULT FALSE,
+
+    CONSTRAINT fk_message_conversation
+        FOREIGN KEY (conversation_id) REFERENCES conversations(id)
+        ON DELETE CASCADE,
+
+    CONSTRAINT fk_message_sender
+        FOREIGN KEY (sender_id) REFERENCES users(id),
+
+    CONSTRAINT fk_message_receiver
+        FOREIGN KEY (receiver_id) REFERENCES users(id),
+
+    CONSTRAINT fk_message_media
+        FOREIGN KEY (media_id) REFERENCES conversation_media(id)
+        ON DELETE SET NULL,
+
+    -- Ensures consistency between message_type and media usage
+    CONSTRAINT chk_message_media_relation CHECK (
+        (message_type = 'text' AND media_id IS NULL) OR
+        (message_type = 'media' AND media_id IS NOT NULL AND content IS NULL) OR
+        (message_type = 'both' AND media_id IS NOT NULL AND content IS NOT NULL)
+    )
+);
+
+CREATE INDEX idx_conversations_buyer ON conversations(buyer_id);
+CREATE INDEX idx_conversations_seller ON conversations(seller_id);
+CREATE INDEX idx_messages_conversation ON messages(conversation_id);
+CREATE INDEX idx_messages_sender ON messages(sender_id);
+CREATE INDEX idx_messages_media ON messages(media_id);
+
+
+CREATE TYPE communication_type_enum AS ENUM ('call', 'missed_call', 'voicemail');
+CREATE TYPE call_status_enum AS ENUM (
+    'initiated',
+    'ringing',
+    'answered',
+    'completed',
+    'failed',
+    'busy',
+    'no_answer'
+);
+
+CREATE TABLE communication_records (
+    communication_id BIGSERIAL PRIMARY KEY,
+
+    conversation_id UUID NOT NULL,      -- Conversation this communication belongs to
+    buyer_id UUID NOT NULL,             -- Buyer involved
+    seller_id UUID NOT NULL,            -- Seller involved
+    request_id UUID NULL,               -- Optional: Buy request this communication refers to
+
+    communication_type communication_type_enum NOT NULL,
+    cpaas_call_id VARCHAR(100) NULL,   -- Reference ID returned by CPaaS provider
+
+    call_status call_status_enum NOT NULL,
+
+    start_time TIMESTAMP NULL,          -- Time CPaaS initiated call
+    end_time TIMESTAMP NULL,            -- Time call ended
+    duration_seconds INT DEFAULT 0,     -- Duration calculated
+
+    recording_url TEXT NULL,            -- Optional CPaaS recording URL
+    metadata JSON NULL,                 -- Any extra payload
+
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    -- Foreign Keys
+    CONSTRAINT fk_comm_conversation
+        FOREIGN KEY (conversation_id)
+        REFERENCES conversations(id)
+        ON DELETE CASCADE,
+
+    CONSTRAINT fk_comm_buyer
+        FOREIGN KEY (buyer_id)
+        REFERENCES users(id)
+        ON DELETE CASCADE,
+
+    CONSTRAINT fk_comm_seller
+        FOREIGN KEY (seller_id)
+        REFERENCES users(id)
+        ON DELETE CASCADE
+);
+