CREATE TABLE IF NOT EXISTS ai_jobs (
  id CHAR(36) PRIMARY KEY,
  project_id INT NULL,
  feature_type VARCHAR(80) NOT NULL,
  status VARCHAR(24) NOT NULL DEFAULT 'queued',
  phase VARCHAR(160) NOT NULL DEFAULT 'Venter på Codex',
  input_hash CHAR(64) NULL,
  input_payload JSON NULL,
  result_payload JSON NULL,
  error_message TEXT NULL,
  model VARCHAR(100) NULL,
  reasoning_effort VARCHAR(20) NULL,
  usage_payload JSON NULL,
  requested_by VARCHAR(120) NULL,
  attempt_count INT NOT NULL DEFAULT 0,
  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
  started_at DATETIME NULL,
  completed_at DATETIME NULL,
  expires_at DATETIME NULL,
  FOREIGN KEY (project_id) REFERENCES customer_projects(id) ON DELETE CASCADE,
  INDEX idx_ai_jobs_project_feature (project_id, feature_type, created_at),
  INDEX idx_ai_jobs_status (status, created_at),
  INDEX idx_ai_jobs_input_hash (input_hash)
);

CREATE TABLE IF NOT EXISTS ai_suggestions (
  id CHAR(36) PRIMARY KEY,
  job_id CHAR(36) NOT NULL,
  project_id INT NOT NULL,
  suggestion_type VARCHAR(80) NOT NULL,
  target_type VARCHAR(80) NULL,
  target_id VARCHAR(120) NULL,
  operation_type VARCHAR(40) NOT NULL DEFAULT 'update',
  before_payload JSON NULL,
  proposed_payload JSON NOT NULL,
  status VARCHAR(20) NOT NULL DEFAULT 'pending',
  input_hash CHAR(64) NOT NULL,
  decision_by VARCHAR(120) NULL,
  decision_at DATETIME NULL,
  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
  FOREIGN KEY (job_id) REFERENCES ai_jobs(id) ON DELETE CASCADE,
  FOREIGN KEY (project_id) REFERENCES customer_projects(id) ON DELETE CASCADE,
  INDEX idx_ai_suggestions_job (job_id, status),
  INDEX idx_ai_suggestions_project (project_id, status)
);

CREATE TABLE IF NOT EXISTS project_documents (
  id CHAR(36) PRIMARY KEY,
  project_id INT NOT NULL,
  filename VARCHAR(255) NOT NULL,
  original_name VARCHAR(255) NOT NULL,
  file_path VARCHAR(700) NOT NULL,
  file_hash CHAR(64) NOT NULL,
  file_size INT NOT NULL,
  mime_type VARCHAR(100) NOT NULL,
  caption TEXT NULL,
  uploaded_by VARCHAR(120) NULL,
  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
  deleted_at DATETIME NULL,
  FOREIGN KEY (project_id) REFERENCES customer_projects(id) ON DELETE CASCADE,
  UNIQUE KEY uniq_project_document_hash (project_id, file_hash),
  INDEX idx_project_documents_project (project_id, deleted_at)
);

INSERT INTO system_settings (setting_key, setting_value)
VALUES
  ('ai_feature.excel_review.enabled', 'true'),
  ('ai_feature.final_review.enabled', 'true'),
  ('ai_feature.risk_review.enabled', 'false'),
  ('ai_feature.package_suggestions.enabled', 'false'),
  ('ai_feature.history_comparison.enabled', 'false'),
  ('ai_feature.price_review.enabled', 'false'),
  ('ai_feature.customer_text.enabled', 'false'),
  ('ai_feature.document_review.enabled', 'false'),
  ('ai_feature.change_review.enabled', 'false'),
  ('ai_feature.excel_mapping.enabled', 'false'),
  ('ai_feature.support_draft.enabled', 'false')
ON DUPLICATE KEY UPDATE setting_value = setting_value;