-- Migration 019: Create Punchlist tables
-- Customer-facing snapshot generated from completed sessions
-- Uses checklist_description field for punchlist-formatted task text

-- ==================== SERVICE PUNCHLISTS ====================

-- Service punchlist (generated from completed session)
CREATE TABLE service_punchlists (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),

    session_id UUID NOT NULL REFERENCES service_sessions(id) ON DELETE CASCADE,

    -- Denormalized for easy access/reporting
    customer_id UUID NOT NULL REFERENCES customers(id) ON DELETE CASCADE,
    account_id UUID NOT NULL REFERENCES accounts(id) ON DELETE CASCADE,
    account_address_id UUID NOT NULL REFERENCES account_addresses(id) ON DELETE CASCADE,
    date DATE NOT NULL,

    -- PDF/export tracking
    pdf_url VARCHAR(500),
    exported_at TIMESTAMPTZ,

    notes TEXT
);

-- Individual task entries on the service punchlist (snapshot of scope tasks)
CREATE TABLE service_punchlist_items (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),

    punchlist_id UUID NOT NULL REFERENCES service_punchlists(id) ON DELETE CASCADE,
    task_id UUID REFERENCES service_scope_tasks(id) ON DELETE SET NULL,  -- nullable if task deleted

    -- Snapshot of task at time of punchlist creation
    checklist_description TEXT NOT NULL,
    "order" INTEGER NOT NULL CHECK ("order" >= 0),

    -- Completion status
    is_completed BOOLEAN NOT NULL DEFAULT FALSE,
    completed_at TIMESTAMPTZ,
    completed_by_id UUID REFERENCES team_profiles(id) ON DELETE SET NULL
);

-- ==================== PROJECT PUNCHLISTS ====================

-- Project punchlist (generated from completed session)
CREATE TABLE project_punchlists (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),

    session_id UUID NOT NULL REFERENCES project_sessions(id) ON DELETE CASCADE,

    -- Denormalized for easy access/reporting
    customer_id UUID NOT NULL REFERENCES customers(id) ON DELETE CASCADE,
    project_id UUID NOT NULL REFERENCES projects(id) ON DELETE CASCADE,
    date DATE NOT NULL,

    -- PDF/export tracking
    pdf_url VARCHAR(500),
    exported_at TIMESTAMPTZ,

    notes TEXT
);

-- Individual task entries on the project punchlist (snapshot of scope tasks)
CREATE TABLE project_punchlist_items (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),

    punchlist_id UUID NOT NULL REFERENCES project_punchlists(id) ON DELETE CASCADE,
    task_id UUID REFERENCES project_scope_tasks(id) ON DELETE SET NULL,  -- nullable if task deleted

    -- Snapshot of task at time of punchlist creation
    checklist_description TEXT NOT NULL,
    "order" INTEGER NOT NULL CHECK ("order" >= 0),

    -- Completion status
    is_completed BOOLEAN NOT NULL DEFAULT FALSE,
    completed_at TIMESTAMPTZ,
    completed_by_id UUID REFERENCES team_profiles(id) ON DELETE SET NULL
);

-- ==================== INDEXES ====================

-- Service punchlist queries
CREATE INDEX idx_service_punchlists_session ON service_punchlists(session_id);
CREATE INDEX idx_service_punchlists_customer ON service_punchlists(customer_id);
CREATE INDEX idx_service_punchlists_account ON service_punchlists(account_id);
CREATE INDEX idx_service_punchlists_address ON service_punchlists(account_address_id);
CREATE INDEX idx_service_punchlists_date ON service_punchlists(date DESC);

-- Service punchlist items
CREATE INDEX idx_service_punchlist_items_punchlist ON service_punchlist_items(punchlist_id);
CREATE INDEX idx_service_punchlist_items_order ON service_punchlist_items(punchlist_id, "order");
CREATE INDEX idx_service_punchlist_items_completed ON service_punchlist_items(is_completed);

-- Project punchlist queries
CREATE INDEX idx_project_punchlists_session ON project_punchlists(session_id);
CREATE INDEX idx_project_punchlists_customer ON project_punchlists(customer_id);
CREATE INDEX idx_project_punchlists_project ON project_punchlists(project_id);
CREATE INDEX idx_project_punchlists_date ON project_punchlists(date DESC);

-- Project punchlist items
CREATE INDEX idx_project_punchlist_items_punchlist ON project_punchlist_items(punchlist_id);
CREATE INDEX idx_project_punchlist_items_order ON project_punchlist_items(punchlist_id, "order");
CREATE INDEX idx_project_punchlist_items_completed ON project_punchlist_items(is_completed);

-- Unique constraint: one punchlist per session
CREATE UNIQUE INDEX idx_service_punchlist_unique_session ON service_punchlists(session_id);
CREATE UNIQUE INDEX idx_project_punchlist_unique_session ON project_punchlists(session_id);