-- Migration 004: Anvil Product Tables
-- Creates tables for Anvil-branded cloud products

-- ============================================================
-- Table: anvil_regions
-- Purpose: Anvil-branded regional datacenters mapped to source providers
-- ============================================================
CREATE TABLE IF NOT EXISTS anvil_regions (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  name TEXT NOT NULL UNIQUE,                -- "anvil-tyo1", "anvil-sel1"
  display_name TEXT NOT NULL,               -- "Tokyo 1", "Seoul 1"
  country_code TEXT NOT NULL,               -- "JP", "KR"
  source_provider TEXT NOT NULL,            -- "linode", "vultr"
  source_region_code TEXT NOT NULL,         -- "jp-tyo-3", "nrt"
  source_region_id INTEGER NOT NULL,        -- FK to regions.id
  active INTEGER NOT NULL DEFAULT 1,        -- 0/1 boolean
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
  updated_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
  FOREIGN KEY (source_region_id) REFERENCES regions(id) ON DELETE RESTRICT
);

-- Index for fast lookup by source region
CREATE INDEX IF NOT EXISTS idx_anvil_regions_source
  ON anvil_regions(source_region_id);

-- Index for active regions lookup
CREATE INDEX IF NOT EXISTS idx_anvil_regions_active
  ON anvil_regions(active);

-- ============================================================
-- Table: anvil_instances
-- Purpose: Anvil-branded instance specifications
-- ============================================================
CREATE TABLE IF NOT EXISTS anvil_instances (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  name TEXT NOT NULL UNIQUE,                -- "anvil-1g-1c"
  display_name TEXT NOT NULL,               -- "Basic 1GB"
  category TEXT NOT NULL DEFAULT 'vm',      -- "vm", "gpu", "g8", "vpu"
  vcpus INTEGER NOT NULL,
  memory_gb REAL NOT NULL,
  disk_gb INTEGER NOT NULL,
  transfer_tb REAL,
  network_gbps REAL,
  gpu_model TEXT,                           -- GPU-specific
  gpu_vram_gb INTEGER,                      -- GPU-specific
  active INTEGER NOT NULL DEFAULT 1,        -- 0/1 boolean
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
  updated_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
);

-- Index for category-based queries
CREATE INDEX IF NOT EXISTS idx_anvil_instances_category
  ON anvil_instances(category);

-- Index for active instances lookup
CREATE INDEX IF NOT EXISTS idx_anvil_instances_active
  ON anvil_instances(active);

-- ============================================================
-- Table: anvil_pricing
-- Purpose: Anvil retail pricing with cost tracking
-- ============================================================
CREATE TABLE IF NOT EXISTS anvil_pricing (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  anvil_instance_id INTEGER NOT NULL,
  anvil_region_id INTEGER NOT NULL,
  hourly_price REAL NOT NULL,               -- Retail price (USD)
  monthly_price REAL NOT NULL,              -- Retail price (USD)
  hourly_price_krw REAL,                    -- Retail price (KRW)
  monthly_price_krw REAL,                   -- Retail price (KRW)
  cost_hourly REAL,                         -- Wholesale cost (USD)
  cost_monthly REAL,                        -- Wholesale cost (USD)
  source_instance_id INTEGER,               -- FK to source tables (instance_types, gpu_instances, etc)
  active INTEGER NOT NULL DEFAULT 1,        -- 0/1 boolean
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
  updated_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
  FOREIGN KEY (anvil_instance_id) REFERENCES anvil_instances(id) ON DELETE CASCADE,
  FOREIGN KEY (anvil_region_id) REFERENCES anvil_regions(id) ON DELETE CASCADE,
  UNIQUE(anvil_instance_id, anvil_region_id)
);

-- Index for instance-based queries
CREATE INDEX IF NOT EXISTS idx_anvil_pricing_instance
  ON anvil_pricing(anvil_instance_id);

-- Index for region-based queries
CREATE INDEX IF NOT EXISTS idx_anvil_pricing_region
  ON anvil_pricing(anvil_region_id);

-- Index for active pricing lookup
CREATE INDEX IF NOT EXISTS idx_anvil_pricing_active
  ON anvil_pricing(active);

-- ============================================================
-- Table: anvil_transfer_pricing
-- Purpose: Data transfer pricing per region
-- ============================================================
CREATE TABLE IF NOT EXISTS anvil_transfer_pricing (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  anvil_region_id INTEGER NOT NULL,
  price_per_gb REAL NOT NULL,               -- USD/GB
  price_per_gb_krw REAL,                    -- KRW/GB
  included_tb REAL NOT NULL DEFAULT 0,      -- Reference only
  active INTEGER NOT NULL DEFAULT 1,        -- 0/1 boolean
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
  updated_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
  FOREIGN KEY (anvil_region_id) REFERENCES anvil_regions(id) ON DELETE CASCADE,
  UNIQUE(anvil_region_id)
);

-- Index for active transfer pricing lookup
CREATE INDEX IF NOT EXISTS idx_anvil_transfer_pricing_active
  ON anvil_transfer_pricing(active);

-- ============================================================
-- Triggers: Auto-update updated_at timestamps
-- ============================================================
CREATE TRIGGER IF NOT EXISTS trigger_anvil_regions_updated_at
  AFTER UPDATE ON anvil_regions
  FOR EACH ROW
  BEGIN
    UPDATE anvil_regions SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
  END;

CREATE TRIGGER IF NOT EXISTS trigger_anvil_instances_updated_at
  AFTER UPDATE ON anvil_instances
  FOR EACH ROW
  BEGIN
    UPDATE anvil_instances SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
  END;

CREATE TRIGGER IF NOT EXISTS trigger_anvil_pricing_updated_at
  AFTER UPDATE ON anvil_pricing
  FOR EACH ROW
  BEGIN
    UPDATE anvil_pricing SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
  END;

CREATE TRIGGER IF NOT EXISTS trigger_anvil_transfer_pricing_updated_at
  AFTER UPDATE ON anvil_transfer_pricing
  FOR EACH ROW
  BEGIN
    UPDATE anvil_transfer_pricing SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
  END;

-- ============================================================
-- Initial Data: anvil_regions
-- ============================================================
INSERT INTO anvil_regions (name, display_name, country_code, source_provider, source_region_code, source_region_id) VALUES
  ('anvil-tyo1', 'Tokyo 1', 'JP', 'linode', 'ap-northeast', 26),
  ('anvil-tyo2', 'Tokyo 2', 'JP', 'linode', 'jp-tyo-3', 3),
  ('anvil-tyo3', 'Tokyo 3', 'JP', 'vultr', 'nrt', 323),
  ('anvil-osa1', 'Osaka 1', 'JP', 'linode', 'jp-osa', 13),
  ('anvil-osa2', 'Osaka 2', 'JP', 'vultr', 'itm', 314),
  ('anvil-sel1', 'Seoul 1', 'KR', 'vultr', 'icn', 313)
ON CONFLICT(name) DO UPDATE SET
  display_name = excluded.display_name,
  country_code = excluded.country_code,
  source_provider = excluded.source_provider,
  source_region_code = excluded.source_region_code,
  source_region_id = excluded.source_region_id;