qtypes.go

package pqtgo

import (
	"fmt"

	"github.com/piotrkowalczuk/pqt"
	"github.com/piotrkowalczuk/qtypes"
)

// WriteCompositionQueryInt64 ...
func WriteCompositionQueryInt64(i *qtypes.Int64, sel string, com *Composer, opt *CompositionOpts) (err error) {
	if i == nil || !i.Valid {
		return nil
	}
	switch i.Type {
	case qtypes.QueryType_NULL:
		if com.Dirty {
			if _, err = com.WriteString(opt.Joint); err != nil {
				return
			}
		}
		com.WriteString(sel)
		if i.Negation {
			if _, err = com.WriteString(" IS NOT NULL"); err != nil {
				return
			}
		} else {
			if _, err = com.WriteString(" IS NULL"); err != nil {
				return
			}
		}
		com.Dirty = true
		return
	case qtypes.QueryType_EQUAL:
		if com.Dirty {
			if _, err = com.WriteString(opt.Joint); err != nil {
				return
			}
		}
		if _, err = com.WriteString(sel); err != nil {
			return
		}
		if i.Negation {
			if _, err = com.WriteString(" <> "); err != nil {
				return
			}
		} else {
			if _, err = com.WriteString(" = "); err != nil {
				return
			}
		}
		if err = com.WritePlaceholder(); err != nil {
			return
		}
		com.Add(i.Value())
		com.Dirty = true
	case qtypes.QueryType_GREATER:
		if com.Dirty {
			if _, err = com.WriteString(opt.Joint); err != nil {
				return
			}
		}
		if _, err = com.WriteString(sel); err != nil {
			return
		}
		if i.Negation {
			if _, err = com.WriteString(" <= "); err != nil {
				return
			}
		} else {
			if _, err = com.WriteString(" > "); err != nil {
				return
			}
		}
		if err = com.WritePlaceholder(); err != nil {
			return
		}
		com.Add(i.Value())
		com.Dirty = true
	case qtypes.QueryType_GREATER_EQUAL:
		if com.Dirty {
			if _, err = com.WriteString(opt.Joint); err != nil {
				return
			}
		}
		if _, err = com.WriteString(sel); err != nil {
			return
		}
		if i.Negation {
			if _, err = com.WriteString(" < "); err != nil {
				return
			}
		} else {
			if _, err = com.WriteString(" >= "); err != nil {
				return
			}
		}
		if err = com.WritePlaceholder(); err != nil {
			return
		}
		com.Add(i.Value())
		com.Dirty = true
	case qtypes.QueryType_LESS:
		if com.Dirty {
			if _, err = com.WriteString(opt.Joint); err != nil {
				return
			}
		}
		if _, err = com.WriteString(sel); err != nil {
			return
		}
		if i.Negation {
			if _, err = com.WriteString(" >= "); err != nil {
				return
			}
		} else {
			if _, err = com.WriteString(" < "); err != nil {
				return
			}
		}
		if err = com.WritePlaceholder(); err != nil {
			return
		}
		com.Add(i.Value())
		com.Dirty = true
	case qtypes.QueryType_LESS_EQUAL:
		if com.Dirty {
			if _, err = com.WriteString(opt.Joint); err != nil {
				return
			}
		}
		if _, err = com.WriteString(sel); err != nil {
			return
		}
		if i.Negation {
			if _, err = com.WriteString(" > "); err != nil {
				return
			}
		} else {
			if _, err = com.WriteString(" <= "); err != nil {
				return
			}
		}
		if err = com.WritePlaceholder(); err != nil {
			return
		}
		com.Add(i.Value())
		com.Dirty = true
	case qtypes.QueryType_CONTAINS:
		if !i.Negation {
			if com.Dirty {
				if _, err = com.WriteString(opt.Joint); err != nil {
					return
				}
			}
			if _, err = com.WriteString(sel); err != nil {
				return
			}
			if _, err = com.WriteString(" @> "); err != nil {
				return
			}
			if err = com.WritePlaceholder(); err != nil {
				return
			}
			com.Add(pqt.JSONArrayInt64(i.Values))
			com.Dirty = true
		}
	case qtypes.QueryType_IS_CONTAINED_BY:
		if !i.Negation {
			if com.Dirty {
				if _, err = com.WriteString(opt.Joint); err != nil {
					return
				}
			}
			if _, err = com.WriteString(sel); err != nil {
				return
			}
			if _, err = com.WriteString(" <@ "); err != nil {
				return
			}
			if err = com.WritePlaceholder(); err != nil {
				return
			}
			com.Add(pqt.JSONArrayInt64(i.Values))
			com.Dirty = true
		}
	case qtypes.QueryType_OVERLAP:
		if !i.Negation {
			if com.Dirty {
				if _, err = com.WriteString(opt.Joint); err != nil {
					return
				}
			}
			if _, err = com.WriteString(sel); err != nil {
				return
			}
			if _, err = com.WriteString(" && "); err != nil {
				return
			}
			if err = com.WritePlaceholder(); err != nil {
				return
			}
			com.Add(pqt.JSONArrayInt64(i.Values))
			com.Dirty = true
		}
	case qtypes.QueryType_HAS_ANY_ELEMENT:
		if !i.Negation {
			if com.Dirty {
				if _, err = com.WriteString(opt.Joint); err != nil {
					return
				}
			}
			if _, err = com.WriteString(sel); err != nil {
				return
			}
			if _, err = com.WriteString(" ?| "); err != nil {
				return
			}
			if err = com.WritePlaceholder(); err != nil {
				return
			}
			com.Add(pqt.ArrayInt64(i.Values))
			com.Dirty = true
		}
	case qtypes.QueryType_HAS_ALL_ELEMENTS:
		if !i.Negation {
			if com.Dirty {
				if _, err = com.WriteString(opt.Joint); err != nil {
					return
				}
			}
			if _, err = com.WriteString(sel); err != nil {
				return
			}
			if _, err = com.WriteString(" ?& "); err != nil {
				return
			}
			if err = com.WritePlaceholder(); err != nil {
				return
			}
			com.Add(pqt.ArrayInt64(i.Values))
			com.Dirty = true
		}
	case qtypes.QueryType_HAS_ELEMENT:
		if !i.Negation {
			if com.Dirty {
				if _, err = com.WriteString(opt.Joint); err != nil {
					return
				}
			}
			if _, err = com.WriteString(sel); err != nil {
				return
			}
			if _, err = com.WriteString(" ? "); err != nil {
				return
			}
			if err = com.WritePlaceholder(); err != nil {
				return
			}
			com.Add(i.Value())
			com.Dirty = true
		}
	case qtypes.QueryType_IN:
		if len(i.Values) > 0 {
			if com.Dirty {
				if _, err = com.WriteString(opt.Joint); err != nil {
					return
				}
			}
			if _, err = com.WriteString(sel); err != nil {
				return
			}
			if i.Negation {
				if _, err = com.WriteString(" NOT IN ("); err != nil {
					return
				}
			} else {
				if _, err = com.WriteString(" IN ("); err != nil {
					return
				}
			}
			for i, v := range i.Values {
				if i != 0 {
					if _, err = com.WriteString(","); err != nil {
						return
					}
				}
				if err = com.WritePlaceholder(); err != nil {
					return
				}
				com.Add(v)
				com.Dirty = true
			}
			if _, err = com.WriteString(")"); err != nil {
				return
			}
		}
	case qtypes.QueryType_BETWEEN:
		if com.Dirty {
			if _, err = com.WriteString(opt.Joint); err != nil {
				return
			}
		}
		if _, err = com.WriteString(sel); err != nil {
			return
		}
		if i.Negation {
			if _, err = com.WriteString(" <= "); err != nil {
				return
			}
		} else {
			if _, err = com.WriteString(" > "); err != nil {
				return
			}
		}
		if err = com.WritePlaceholder(); err != nil {
			return
		}
		com.Add(i.Values[0])
		if _, err = com.WriteString(" AND "); err != nil {
			return
		}
		if _, err = com.WriteString(sel); err != nil {
			return
		}
		if i.Negation {
			if _, err = com.WriteString(" >= "); err != nil {
				return
			}
		} else {
			if _, err = com.WriteString(" < "); err != nil {
				return
			}
		}
		if err = com.WritePlaceholder(); err != nil {
			return
		}
		com.Add(i.Values[1])
		com.Dirty = true
	default:
		return fmt.Errorf("pqtgo: unknown int64 query type %s", i.Type.String())
	}

	if com.Dirty {
		if opt.Cast != "" {
			if _, err = com.WriteString(opt.Cast); err != nil {
				return
			}
		}
	}

	return
}

// WriteCompositionQueryString ...
func WriteCompositionQueryString(s *qtypes.String, sel string, com *Composer, opt *CompositionOpts) (err error) {
	if s == nil || !s.Valid {
		return
	}
	switch s.Type {
	case qtypes.QueryType_NULL:
		if com.Dirty {
			if _, err = com.WriteString(opt.Joint); err != nil {
				return
			}
		}
		if _, err = com.WriteString(sel); err != nil {
			return
		}
		if s.Negation {
			if _, err = com.WriteString(" IS NOT NULL"); err != nil {
				return
			}
		} else {
			if _, err = com.WriteString(" IS NULL"); err != nil {
				return
			}
		}
		com.Dirty = true
		return // cannot be casted so simply return
	case qtypes.QueryType_EQUAL:
		if com.Dirty {
			if _, err = com.WriteString(opt.Joint); err != nil {
				return
			}
		}
		if _, err = com.WriteString(sel); err != nil {
			return
		}
		if s.Negation {
			if _, err = com.WriteString(" <> "); err != nil {
				return
			}
		} else {
			if _, err = com.WriteString(" = "); err != nil {
				return
			}
		}
		if opt.PlaceholderFunc != "" {
			if _, err = com.WriteString(opt.PlaceholderFunc); err != nil {
				return
			}
			if _, err = com.WriteString("("); err != nil {
				return
			}
		}
		if err = com.WritePlaceholder(); err != nil {
			return
		}
		com.Add(s.Value())
		com.Dirty = true
	case qtypes.QueryType_SUBSTRING:
		if com.Dirty {
			if _, err = com.WriteString(opt.Joint); err != nil {
				return
			}
		}
		if _, err = com.WriteString(sel); err != nil {
			return
		}
		if s.Negation {
			if _, err = com.WriteString(" NOT LIKE "); err != nil {
				return
			}
		} else {
			if _, err = com.WriteString(" LIKE "); err != nil {
				return
			}
		}
		if opt.PlaceholderFunc != "" {
			if _, err = com.WriteString(opt.PlaceholderFunc); err != nil {
				return
			}
			if _, err = com.WriteString("("); err != nil {
				return
			}
		}
		if err = com.WritePlaceholder(); err != nil {
			return
		}

		com.Add(fmt.Sprintf("%%%s%%", s.Value()))
		com.Dirty = true
	case qtypes.QueryType_HAS_PREFIX:
		if com.Dirty {
			if _, err = com.WriteString(opt.Joint); err != nil {
				return
			}
		}
		if _, err = com.WriteString(sel); err != nil {
			return
		}
		if s.Negation {
			if _, err = com.WriteString(" NOT LIKE "); err != nil {
				return
			}
		} else {
			if _, err = com.WriteString(" LIKE "); err != nil {
				return
			}
		}
		if opt.PlaceholderFunc != "" {
			if _, err = com.WriteString(opt.PlaceholderFunc); err != nil {
				return
			}
			if _, err = com.WriteString("("); err != nil {
				return
			}
		}
		if err = com.WritePlaceholder(); err != nil {
			return
		}

		com.Add(fmt.Sprintf("%s%%", s.Value()))
		com.Dirty = true
	case qtypes.QueryType_HAS_SUFFIX:
		if com.Dirty {
			if _, err = com.WriteString(opt.Joint); err != nil {
				return
			}
		}
		if _, err = com.WriteString(sel); err != nil {
			return
		}
		if s.Negation {
			if _, err = com.WriteString(" NOT LIKE "); err != nil {
				return
			}

		} else {
			if _, err = com.WriteString(" LIKE "); err != nil {
				return
			}

		}
		if opt.PlaceholderFunc != "" {
			if _, err = com.WriteString(opt.PlaceholderFunc); err != nil {
				return
			}
			if _, err = com.WriteString("("); err != nil {
				return
			}
		}
		if err = com.WritePlaceholder(); err != nil {
			return
		}

		com.Add(fmt.Sprintf("%%%s", s.Value()))
		com.Dirty = true
	case qtypes.QueryType_CONTAINS:
		if !s.Negation {
			if com.Dirty {
				if _, err = com.WriteString(opt.Joint); err != nil {
					return
				}
			}
			if _, err = com.WriteString(sel); err != nil {
				return
			}
			if _, err = com.WriteString(" @> "); err != nil {
				return
			}
			if opt.PlaceholderFunc != "" {
				if _, err = com.WriteString(opt.PlaceholderFunc); err != nil {
					return
				}
				if _, err = com.WriteString("("); err != nil {
					return
				}
			}
			if err = com.WritePlaceholder(); err != nil {
				return
			}

			com.Add(pqt.JSONArrayString(s.Values))
			com.Dirty = true
		}
	case qtypes.QueryType_IS_CONTAINED_BY:
		if !s.Negation {
			if com.Dirty {
				if _, err = com.WriteString(opt.Joint); err != nil {
					return
				}
			}
			if _, err = com.WriteString(sel); err != nil {
				return
			}
			if _, err = com.WriteString(" <@ "); err != nil {
				return
			}
			if opt.PlaceholderFunc != "" {
				if _, err = com.WriteString(opt.PlaceholderFunc); err != nil {
					return
				}
				if _, err = com.WriteString("("); err != nil {
					return
				}
			}
			if err = com.WritePlaceholder(); err != nil {
				return
			}

			com.Add(s.Value())
			com.Dirty = true
		}
	case qtypes.QueryType_OVERLAP:
		if !s.Negation {
			if com.Dirty {
				if _, err = com.WriteString(opt.Joint); err != nil {
					return
				}
			}
			if _, err = com.WriteString(sel); err != nil {
				return
			}
			if _, err = com.WriteString(" && "); err != nil {
				return
			}
			if opt.PlaceholderFunc != "" {
				if _, err = com.WriteString(opt.PlaceholderFunc); err != nil {
					return
				}
				if _, err = com.WriteString("("); err != nil {
					return
				}
			}
			if err = com.WritePlaceholder(); err != nil {
				return
			}

			com.Add(s.Value())
			com.Dirty = true
		}
	case qtypes.QueryType_HAS_ANY_ELEMENT:
		if !s.Negation {
			if com.Dirty {
				if _, err = com.WriteString(opt.Joint); err != nil {
					return
				}
			}
			if _, err = com.WriteString(sel); err != nil {
				return
			}
			if _, err = com.WriteString(" ?| "); err != nil {
				return
			}
			if err = com.WritePlaceholder(); err != nil {
				return
			}
			com.Add(pqt.ArrayString(s.Values))
			com.Dirty = true
		}
	case qtypes.QueryType_HAS_ALL_ELEMENTS:
		if !s.Negation {
			if com.Dirty {
				if _, err = com.WriteString(opt.Joint); err != nil {
					return
				}
			}
			if _, err = com.WriteString(sel); err != nil {
				return
			}
			if _, err = com.WriteString(" ?& "); err != nil {
				return
			}
			if err = com.WritePlaceholder(); err != nil {
				return
			}
			com.Add(pqt.ArrayString(s.Values))
			com.Dirty = true
		}
	default:
		return fmt.Errorf("pqtgo: unknown string query type %s", s.Type.String())
	}

	switch {
	case com.Dirty && opt.Cast != "":
		if _, err = com.WriteString(opt.Cast); err != nil {
			return
		}
	case com.Dirty && opt.PlaceholderFunc != "":
		if _, err = com.WriteString(")"); err != nil {
			return
		}
	case com.Dirty:
	}
	return
}