-- TIP: Transceiver Intelligence Platform
-- Migration 002: Core Tables

-- ============================================================
-- VENDORS (Hersteller, Distributoren, Reseller, OEMs)
-- ============================================================
CREATE TABLE IF NOT EXISTS vendors (
    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    name            TEXT NOT NULL UNIQUE,
    slug            TEXT NOT NULL UNIQUE,
    type            TEXT NOT NULL CHECK (type IN ('manufacturer','distributor','oem','reseller','compatible')),
    headquarters    TEXT,
    country         TEXT,
    website         TEXT,
    shop_url        TEXT,
    api_available   BOOLEAN DEFAULT FALSE,
    api_endpoint    TEXT,
    logo_r2_key     TEXT,
    founded_year    INTEGER,
    revenue_usd     BIGINT,
    employee_count  INTEGER,
    market_position TEXT,
    specialties     TEXT[] DEFAULT '{}',
    scrape_config   JSONB DEFAULT '{}',
    last_scraped    TIMESTAMPTZ,
    is_competitor   BOOLEAN DEFAULT FALSE,
    is_factory      BOOLEAN DEFAULT FALSE,
    factory_locations TEXT[] DEFAULT '{}',
    certifications  TEXT[] DEFAULT '{}',
    strengths       TEXT[] DEFAULT '{}',
    weaknesses      TEXT[] DEFAULT '{}',
    created_at      TIMESTAMPTZ DEFAULT NOW(),
    updated_at      TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================
-- STANDARDS (IEEE, OIF, MSA)
-- ============================================================
CREATE TABLE IF NOT EXISTS standards (
    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    name            TEXT NOT NULL UNIQUE,
    ieee_reference  TEXT,
    body            TEXT CHECK (body IN ('IEEE','OIF','MSA','de_facto','proprietary')),
    speed           TEXT,
    speed_gbps      NUMERIC,
    lanes           INTEGER,
    lane_rate       TEXT,
    lane_rate_gbps  NUMERIC,
    modulation      TEXT,
    fiber_type      TEXT,
    wavelength      TEXT,
    max_reach_meters INTEGER,
    max_reach_label TEXT,
    connector       TEXT,
    fec_required    BOOLEAN DEFAULT FALSE,
    form_factors    TEXT[] DEFAULT '{}',
    year_draft      INTEGER,
    year_ratified   INTEGER,
    year_revised    INTEGER,
    status          TEXT DEFAULT 'ratified' CHECK (status IN ('draft','ratified','revised','superseded')),
    superseded_by   TEXT,
    member_count    INTEGER,
    notes           TEXT,
    url             TEXT,
    created_at      TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================
-- TRANSCEIVERS
-- ============================================================
CREATE TABLE IF NOT EXISTS transceivers (
    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    slug                TEXT NOT NULL UNIQUE,
    vendor_id           UUID REFERENCES vendors(id),
    part_number         TEXT,
    standard_name       TEXT,
    standard_id         UUID REFERENCES standards(id),
    ieee_reference      TEXT,
    form_factor         TEXT NOT NULL,
    speed               TEXT NOT NULL,
    speed_gbps          NUMERIC NOT NULL,
    lanes               INTEGER,
    lane_rate           TEXT,
    lane_rate_gbps      NUMERIC,
    modulation          TEXT,
    reach_meters        INTEGER NOT NULL,
    reach_label         TEXT,
    fiber_type          TEXT,
    wavelengths         TEXT,
    connector           TEXT,
    power_consumption_w NUMERIC,
    temp_range          TEXT DEFAULT 'COM' CHECK (temp_range IN ('COM','IND')),
    category            TEXT,
    dom_support         BOOLEAN DEFAULT TRUE,
    digital_diagnostics TEXT,

    -- CWDM/DWDM
    wdm_type            TEXT CHECK (wdm_type IN ('CWDM','DWDM',NULL)),
    channel_count       INTEGER,
    channel_spacing_ghz NUMERIC,
    tunable             BOOLEAN DEFAULT FALSE,
    itu_grid            TEXT,

    -- Coherent
    coherent            BOOLEAN DEFAULT FALSE,
    baud_rate_gbaud     NUMERIC,
    fec_type            TEXT,
    dsp_vendor          TEXT,

    -- Lifecycle
    year_introduced     INTEGER,
    year_mainstream      INTEGER,
    year_peak           INTEGER,
    year_decline        INTEGER,
    market_status       TEXT DEFAULT 'Mainstream' CHECK (market_status IN ('Mainstream','Growth','Emerging','Legacy','EOL')),
    hype_cycle_phase    TEXT,
    generation          TEXT,

    -- Pricing
    price_tier          TEXT CHECK (price_tier IN ('Budget','Standard','Premium')),
    msrp_usd            NUMERIC,
    street_price_usd    NUMERIC,

    -- Technical
    optical_budget_db   NUMERIC,
    tx_power_min_dbm    NUMERIC,
    tx_power_max_dbm    NUMERIC,
    rx_sensitivity_dbm  NUMERIC,

    -- Breakout
    breakout_capable    BOOLEAN DEFAULT FALSE,
    breakout_to         TEXT,

    -- Storage
    datasheet_r2_key    TEXT,
    image_r2_key        TEXT,

    -- Meta
    use_case            TEXT,
    tags                TEXT[] DEFAULT '{}',
    vendor_compat       JSONB DEFAULT '[]',
    notes               TEXT,

    -- Search vector (auto-populated by trigger)
    search_vector       TSVECTOR,

    created_at          TIMESTAMPTZ DEFAULT NOW(),
    updated_at          TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================
-- SWITCHES
-- ============================================================
CREATE TABLE IF NOT EXISTS switches (
    id                      UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    vendor_id               UUID REFERENCES vendors(id),
    model                   TEXT NOT NULL,
    series                  TEXT,
    category                TEXT CHECK (category IN ('DataCenter','Campus','Edge','Core','SP','Industrial')),
    layer                   TEXT CHECK (layer IN ('L2','L3','L2/L3')),
    managed                 BOOLEAN DEFAULT TRUE,

    -- Ports
    ports_config            JSONB DEFAULT '{}',
    total_ports             INTEGER,
    uplink_speed_gbps       NUMERIC,
    max_speed_gbps          NUMERIC,

    -- Performance
    switching_capacity_tbps NUMERIC,
    forwarding_rate_mpps    NUMERIC,
    latency_ns              NUMERIC,
    buffer_mb               NUMERIC,

    -- ASIC
    asic_vendor             TEXT,
    asic_model              TEXT,
    asic_generation         TEXT,

    -- Features
    poe_support             TEXT DEFAULT 'None',
    stacking_support        BOOLEAN DEFAULT FALSE,
    vxlan_support           BOOLEAN DEFAULT FALSE,
    evpn_support            BOOLEAN DEFAULT FALSE,
    bgp_support             BOOLEAN DEFAULT FALSE,
    mpls_support            BOOLEAN DEFAULT FALSE,
    openconfig_support      BOOLEAN DEFAULT FALSE,
    sonic_compatible        BOOLEAN DEFAULT FALSE,
    macsec_support          BOOLEAN DEFAULT FALSE,

    -- Lifecycle
    release_date            DATE,
    eos_date                DATE,
    eol_date                DATE,
    last_support_date       DATE,
    lifecycle_status         TEXT DEFAULT 'Active' CHECK (lifecycle_status IN ('Active','EoS_Announced','EoL','Legacy')),
    successor_model         TEXT,

    -- Physical
    rack_units              NUMERIC,
    max_power_w             NUMERIC,
    typical_power_w         NUMERIC,
    weight_kg               NUMERIC,
    airflow                 TEXT,

    -- Pricing
    msrp_usd                NUMERIC,
    street_price_usd        NUMERIC,

    -- Documentation
    manual_r2_key           TEXT,
    datasheet_r2_key        TEXT,
    config_guide_r2_key     TEXT,
    compatibility_list_url  TEXT,

    -- Meta
    tags                    TEXT[] DEFAULT '{}',
    search_vector           TSVECTOR,
    created_at              TIMESTAMPTZ DEFAULT NOW(),
    updated_at              TIMESTAMPTZ DEFAULT NOW(),

    UNIQUE(vendor_id, model)
);

-- ============================================================
-- COMPATIBILITY (Switch <-> Transceiver)
-- ============================================================
CREATE TABLE IF NOT EXISTS compatibility (
    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    switch_id           UUID REFERENCES switches(id) ON DELETE CASCADE,
    transceiver_id      UUID REFERENCES transceivers(id) ON DELETE CASCADE,
    verified_by         TEXT,
    verification_date   DATE,
    verification_method TEXT CHECK (verification_method IN ('tested','vendor_matrix','datasheet','community')),
    status              TEXT DEFAULT 'compatible' CHECK (status IN ('compatible','incompatible','partial','unknown')),
    notes               TEXT,
    firmware_min        TEXT,
    known_issues        TEXT,
    source_url          TEXT,
    created_at          TIMESTAMPTZ DEFAULT NOW(),
    UNIQUE(switch_id, transceiver_id)
);

-- ============================================================
-- BREAKOUTS
-- ============================================================
CREATE TABLE IF NOT EXISTS breakouts (
    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    slug            TEXT NOT NULL UNIQUE,
    from_standard   TEXT NOT NULL,
    to_standard     TEXT NOT NULL,
    form_factor     TEXT,
    description     TEXT,
    cable_type      TEXT CHECK (cable_type IN ('Passive','Active')),
    max_length      TEXT,
    speed_per_lane  TEXT,
    created_at      TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================
-- TEMPLATES (FlexBox Coding + Switch Config)
-- ============================================================
CREATE TABLE IF NOT EXISTS templates (
    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    type            TEXT NOT NULL CHECK (type IN ('flexbox_coding','switch_config')),
    name            TEXT NOT NULL,
    description     TEXT,
    switch_vendor   TEXT,
    switch_series   TEXT,
    transceiver_type TEXT,
    speed_gbps      NUMERIC,
    technology      TEXT,
    template_content TEXT NOT NULL,
    variables       JSONB DEFAULT '{}',
    tags            TEXT[] DEFAULT '{}',
    created_at      TIMESTAMPTZ DEFAULT NOW(),
    updated_at      TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================
-- DOCUMENTS (PDFs in R2)
-- ============================================================
CREATE TABLE IF NOT EXISTS documents (
    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    entity_type     TEXT NOT NULL CHECK (entity_type IN ('transceiver','switch','vendor','standard')),
    entity_id       UUID,
    doc_type        TEXT NOT NULL CHECK (doc_type IN ('manual','datasheet','config_guide','compatibility_list','faq','whitepaper')),
    title           TEXT,
    filename        TEXT,
    r2_key          TEXT NOT NULL,
    source_url      TEXT,
    file_size_bytes BIGINT,
    page_count      INTEGER,
    ocr_status      TEXT DEFAULT 'pending' CHECK (ocr_status IN ('pending','processing','completed','failed')),
    ocr_text        TEXT,
    language        TEXT DEFAULT 'en',
    content_hash    TEXT,
    last_checked    TIMESTAMPTZ,
    created_at      TIMESTAMPTZ DEFAULT NOW(),
    updated_at      TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================
-- KNOWLEDGE BASE (FAQs, Troubleshooting)
-- ============================================================
CREATE TABLE IF NOT EXISTS knowledge_base (
    id                      UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    category                TEXT NOT NULL CHECK (category IN ('troubleshooting','faq','best_practice','known_issue','compatibility_tip')),
    subcategory             TEXT,
    question                TEXT NOT NULL,
    answer                  TEXT NOT NULL,
    source_vendor           TEXT,
    source_url              TEXT,
    applies_to_form_factors TEXT[] DEFAULT '{}',
    applies_to_speeds       TEXT[] DEFAULT '{}',
    applies_to_vendors      TEXT[] DEFAULT '{}',
    severity                TEXT CHECK (severity IN ('critical','high','medium','low','info')),
    resolution_steps        JSONB,
    last_verified           TIMESTAMPTZ,
    helpful_count           INTEGER DEFAULT 0,
    tags                    TEXT[] DEFAULT '{}',
    search_vector           TSVECTOR,
    created_at              TIMESTAMPTZ DEFAULT NOW(),
    updated_at              TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================
-- FACTORIES
-- ============================================================
CREATE TABLE IF NOT EXISTS factories (
    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    vendor_id           UUID REFERENCES vendors(id),
    name                TEXT NOT NULL,
    country             TEXT NOT NULL,
    city                TEXT,
    factory_type        TEXT CHECK (factory_type IN ('manufacturing','assembly','r_and_d','headquarters')),
    products            TEXT[] DEFAULT '{}',
    capacity_units_month INTEGER,
    employee_count      INTEGER,
    certifications      TEXT[] DEFAULT '{}',
    expansion_planned   BOOLEAN DEFAULT FALSE,
    expansion_details   TEXT,
    source_url          TEXT,
    last_verified       TIMESTAMPTZ,
    created_at          TIMESTAMPTZ DEFAULT NOW(),
    updated_at          TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================
-- NEWS ARTICLES
-- ============================================================
CREATE TABLE IF NOT EXISTS news_articles (
    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    title               TEXT NOT NULL,
    source              TEXT NOT NULL,
    source_url          TEXT NOT NULL UNIQUE,
    published_at        TIMESTAMPTZ,
    author              TEXT,
    summary             TEXT,
    full_text           TEXT,
    category            TEXT CHECK (category IN ('product_launch','market_report','standard','m_and_a','factory','event')),
    event               TEXT,
    mentioned_vendors   TEXT[] DEFAULT '{}',
    mentioned_products  TEXT[] DEFAULT '{}',
    mentioned_standards TEXT[] DEFAULT '{}',
    sentiment_score     NUMERIC,
    relevance_score     NUMERIC,
    content_hash        TEXT,
    tags                TEXT[] DEFAULT '{}',
    search_vector       TSVECTOR,
    created_at          TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================
-- BLOG DRAFTS
-- ============================================================
CREATE TABLE IF NOT EXISTS blog_drafts (
    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    title           TEXT NOT NULL,
    topic           TEXT CHECK (topic IN ('hype_cycle','price_trend','new_product','comparison','tutorial')),
    target_audience TEXT CHECK (target_audience IN ('sales','technical','customer','seo')),
    outline         JSONB,
    draft_content   TEXT,
    data_sources    JSONB,
    status          TEXT DEFAULT 'draft' CHECK (status IN ('draft','review','approved','published')),
    generated_by    TEXT,
    word_count      INTEGER,
    seo_keywords    TEXT[] DEFAULT '{}',
    created_at      TIMESTAMPTZ DEFAULT NOW(),
    updated_at      TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================
-- TRIGGERS: Auto-update search_vector
-- ============================================================

-- Transceiver search vector
CREATE OR REPLACE FUNCTION transceivers_search_vector_update() RETURNS trigger AS $$
BEGIN
    NEW.search_vector :=
        setweight(to_tsvector('english', COALESCE(NEW.standard_name, '')), 'A') ||
        setweight(to_tsvector('english', COALESCE(NEW.form_factor, '')), 'A') ||
        setweight(to_tsvector('english', COALESCE(NEW.speed, '')), 'A') ||
        setweight(to_tsvector('english', COALESCE(NEW.use_case, '')), 'B') ||
        setweight(to_tsvector('english', COALESCE(NEW.category, '')), 'B') ||
        setweight(to_tsvector('english', COALESCE(NEW.wavelengths, '')), 'C') ||
        setweight(to_tsvector('english', COALESCE(NEW.modulation, '')), 'C') ||
        setweight(to_tsvector('english', COALESCE(NEW.generation, '')), 'C') ||
        setweight(to_tsvector('english', COALESCE(array_to_string(NEW.tags, ' '), '')), 'D');
    NEW.updated_at := NOW();
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;

CREATE TRIGGER transceivers_search_update
    BEFORE INSERT OR UPDATE ON transceivers
    FOR EACH ROW EXECUTE FUNCTION transceivers_search_vector_update();

-- Switch search vector
CREATE OR REPLACE FUNCTION switches_search_vector_update() RETURNS trigger AS $$
BEGIN
    NEW.search_vector :=
        setweight(to_tsvector('english', COALESCE(NEW.model, '')), 'A') ||
        setweight(to_tsvector('english', COALESCE(NEW.series, '')), 'A') ||
        setweight(to_tsvector('english', COALESCE(NEW.category, '')), 'B') ||
        setweight(to_tsvector('english', COALESCE(NEW.asic_vendor, '')), 'C') ||
        setweight(to_tsvector('english', COALESCE(NEW.asic_model, '')), 'C') ||
        setweight(to_tsvector('english', COALESCE(array_to_string(NEW.tags, ' '), '')), 'D');
    NEW.updated_at := NOW();
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;

CREATE TRIGGER switches_search_update
    BEFORE INSERT OR UPDATE ON switches
    FOR EACH ROW EXECUTE FUNCTION switches_search_vector_update();

-- Knowledge base search vector
CREATE OR REPLACE FUNCTION kb_search_vector_update() RETURNS trigger AS $$
BEGIN
    NEW.search_vector :=
        setweight(to_tsvector('english', COALESCE(NEW.question, '')), 'A') ||
        setweight(to_tsvector('english', COALESCE(NEW.answer, '')), 'B') ||
        setweight(to_tsvector('english', COALESCE(NEW.category, '')), 'C') ||
        setweight(to_tsvector('english', COALESCE(array_to_string(NEW.tags, ' '), '')), 'D');
    NEW.updated_at := NOW();
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;

CREATE TRIGGER kb_search_update
    BEFORE INSERT OR UPDATE ON knowledge_base
    FOR EACH ROW EXECUTE FUNCTION kb_search_vector_update();

-- News search vector
CREATE OR REPLACE FUNCTION news_search_vector_update() RETURNS trigger AS $$
BEGIN
    NEW.search_vector :=
        setweight(to_tsvector('english', COALESCE(NEW.title, '')), 'A') ||
        setweight(to_tsvector('english', COALESCE(NEW.summary, '')), 'B') ||
        setweight(to_tsvector('english', COALESCE(NEW.source, '')), 'C') ||
        setweight(to_tsvector('english', COALESCE(array_to_string(NEW.tags, ' '), '')), 'D');
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;

CREATE TRIGGER news_search_update
    BEFORE INSERT OR UPDATE ON news_articles
    FOR EACH ROW EXECUTE FUNCTION news_search_vector_update();