-- =============================================================================
-- 共享知识库基础设施 (Shared Knowledge Base) 数据库初始化脚本
-- 适用于三套环境服务共享的 pgvector 向量数据库 (shuimu-kb-shared:5432)
-- 支持多领域知识中枢：法规标准 (Regulatory) + 项目数字资产 (ProjectAsset) + 员工能力模型 (StaffCapability)
-- =============================================================================

CREATE EXTENSION IF NOT EXISTS vector;
CREATE EXTENSION IF NOT EXISTS pg_trgm;

-- =============================================================================
-- 领域一：法规标准知识领域 (Domain: Regulatory)
-- 包含医疗器械法律法规、国家标准(GB/T)、行业标准(YY)及指导原则
-- 注：reg_* 系列表结构及 2,907 篇法规基线数据由流式迁移转储脚本导入
-- =============================================================================

-- =============================================================================
-- 领域二：项目数字资产知识领域 (Domain: ProjectAsset, 预留与扩展)
-- 沉淀已完成项目的可行性报告、CDO 报价模型、系统方案、BOM、踩坑避险记录
-- =============================================================================
CREATE TABLE IF NOT EXISTS asset_projects (
    id              BIGSERIAL PRIMARY KEY,
    project_code    TEXT UNIQUE NOT NULL,
    name            TEXT NOT NULL,
    device_type     TEXT NOT NULL DEFAULT '',
    customer_name   TEXT NOT NULL DEFAULT '',
    stage_reached   TEXT NOT NULL DEFAULT '',
    summary         TEXT NOT NULL DEFAULT '',
    metadata_json   JSONB NOT NULL DEFAULT '{}'::jsonb,
    created_at      TIMESTAMPTZ NOT NULL DEFAULT now(),
    updated_at      TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE TABLE IF NOT EXISTS asset_documents (
    id              BIGSERIAL PRIMARY KEY,
    project_id      BIGINT REFERENCES asset_projects(id) ON DELETE CASCADE,
    doc_type        TEXT NOT NULL, -- feasibility, quote, cad, pcb, bom, testing
    title           TEXT NOT NULL,
    file_path       TEXT NOT NULL,
    metadata_json   JSONB NOT NULL DEFAULT '{}'::jsonb,
    created_at      TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE TABLE IF NOT EXISTS asset_chunks (
    id              BIGSERIAL PRIMARY KEY,
    project_id      BIGINT REFERENCES asset_projects(id) ON DELETE CASCADE,
    document_id     BIGINT REFERENCES asset_documents(id) ON DELETE CASCADE,
    chunk_title     TEXT NOT NULL DEFAULT '',
    content         TEXT NOT NULL,
    cite_key        TEXT NOT NULL DEFAULT '',
    embedding       vector(1024),
    tsv             tsvector,
    metadata_json   JSONB NOT NULL DEFAULT '{}'::jsonb,
    created_at      TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE INDEX IF NOT EXISTS idx_asset_chunks_project ON asset_chunks(project_id);
CREATE INDEX IF NOT EXISTS idx_asset_chunks_doc ON asset_chunks(document_id);
CREATE INDEX IF NOT EXISTS idx_asset_chunks_tsv ON asset_chunks USING gin (tsv);

-- =============================================================================
-- 领域三：员工工作能力知识领域 (Domain: StaffCapability, 预留与扩展)
-- 沉淀研发工程师专长技能图谱、历史人效系数、工时评估模型，辅助智能排班与精准估算
-- =============================================================================
CREATE TABLE IF NOT EXISTS staff_profiles (
    id              BIGSERIAL PRIMARY KEY,
    staff_code      TEXT UNIQUE NOT NULL,
    name            TEXT NOT NULL,
    role_category   TEXT NOT NULL, -- optical, mechanical, hardware, firmware, algorithm, regulatory, qa
    seniority_level TEXT NOT NULL DEFAULT 'senior',
    skills          TEXT[] NOT NULL DEFAULT '{}',
    hourly_rate_cny NUMERIC(10,2) NOT NULL DEFAULT 0.00,
    metadata_json   JSONB NOT NULL DEFAULT '{}'::jsonb,
    created_at      TIMESTAMPTZ NOT NULL DEFAULT now(),
    updated_at      TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE TABLE IF NOT EXISTS staff_experience_records (
    id              BIGSERIAL PRIMARY KEY,
    staff_id        BIGINT REFERENCES staff_profiles(id) ON DELETE CASCADE,
    project_code    TEXT NOT NULL DEFAULT '',
    task_type       TEXT NOT NULL,
    planned_hours   NUMERIC(8,2) NOT NULL DEFAULT 0.00,
    actual_hours    NUMERIC(8,2) NOT NULL DEFAULT 0.00,
    variance_ratio  NUMERIC(5,2) NOT NULL DEFAULT 1.00,
    learnings       TEXT NOT NULL DEFAULT '',
    created_at      TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE INDEX IF NOT EXISTS idx_staff_exp_staff ON staff_experience_records(staff_id);
CREATE INDEX IF NOT EXISTS idx_staff_exp_task ON staff_experience_records(task_type);