Added diff to the tool

pkg/diff/types.go

@@ -0,0 +1,192 @@
+package diff
+
+import "git.warky.dev/wdevs/relspecgo/pkg/models"
+
+// DiffResult represents the complete difference analysis between two databases
+type DiffResult struct {
+	Source string       `json:"source"`
+	Target string       `json:"target"`
+	Schemas *SchemaDiff `json:"schemas"`
+}
+
+// SchemaDiff represents differences at the schema level
+type SchemaDiff struct {
+	Missing  []*models.Schema `json:"missing"`  // Schemas in source but not in target
+	Extra    []*models.Schema `json:"extra"`    // Schemas in target but not in source
+	Modified []*SchemaChange  `json:"modified"` // Schemas that exist in both but differ
+}
+
+// SchemaChange represents changes within a schema
+type SchemaChange struct {
+	Name      string         `json:"name"`
+	Tables    *TableDiff     `json:"tables,omitempty"`
+	Views     *ViewDiff      `json:"views,omitempty"`
+	Sequences *SequenceDiff  `json:"sequences,omitempty"`
+}
+
+// TableDiff represents differences in tables
+type TableDiff struct {
+	Missing  []*models.Table  `json:"missing"`  // Tables in source but not in target
+	Extra    []*models.Table  `json:"extra"`    // Tables in target but not in source
+	Modified []*TableChange   `json:"modified"` // Tables that exist in both but differ
+}
+
+// TableChange represents changes within a table
+type TableChange struct {
+	Name          string            `json:"name"`
+	Schema        string            `json:"schema"`
+	Columns       *ColumnDiff       `json:"columns,omitempty"`
+	Indexes       *IndexDiff        `json:"indexes,omitempty"`
+	Constraints   *ConstraintDiff   `json:"constraints,omitempty"`
+	Relationships *RelationshipDiff `json:"relationships,omitempty"`
+}
+
+// ColumnDiff represents differences in columns
+type ColumnDiff struct {
+	Missing  []*models.Column `json:"missing"`  // Columns in source but not in target
+	Extra    []*models.Column `json:"extra"`    // Columns in target but not in source
+	Modified []*ColumnChange  `json:"modified"` // Columns that exist in both but differ
+}
+
+// ColumnChange represents a modified column
+type ColumnChange struct {
+	Name   string            `json:"name"`
+	Source *models.Column    `json:"source"`
+	Target *models.Column    `json:"target"`
+	Changes map[string]any    `json:"changes"` // Map of field name to what changed
+}
+
+// IndexDiff represents differences in indexes
+type IndexDiff struct {
+	Missing  []*models.Index `json:"missing"` // Indexes in source but not in target
+	Extra    []*models.Index `json:"extra"`   // Indexes in target but not in source
+	Modified []*IndexChange  `json:"modified"` // Indexes that exist in both but differ
+}
+
+// IndexChange represents a modified index
+type IndexChange struct {
+	Name    string         `json:"name"`
+	Source  *models.Index  `json:"source"`
+	Target  *models.Index  `json:"target"`
+	Changes map[string]any `json:"changes"`
+}
+
+// ConstraintDiff represents differences in constraints
+type ConstraintDiff struct {
+	Missing  []*models.Constraint `json:"missing"`  // Constraints in source but not in target
+	Extra    []*models.Constraint `json:"extra"`    // Constraints in target but not in source
+	Modified []*ConstraintChange  `json:"modified"` // Constraints that exist in both but differ
+}
+
+// ConstraintChange represents a modified constraint
+type ConstraintChange struct {
+	Name    string             `json:"name"`
+	Source  *models.Constraint `json:"source"`
+	Target  *models.Constraint `json:"target"`
+	Changes map[string]any     `json:"changes"`
+}
+
+// RelationshipDiff represents differences in relationships
+type RelationshipDiff struct {
+	Missing  []*models.Relationship `json:"missing"`  // Relationships in source but not in target
+	Extra    []*models.Relationship `json:"extra"`    // Relationships in target but not in source
+	Modified []*RelationshipChange  `json:"modified"` // Relationships that exist in both but differ
+}
+
+// RelationshipChange represents a modified relationship
+type RelationshipChange struct {
+	Name    string               `json:"name"`
+	Source  *models.Relationship `json:"source"`
+	Target  *models.Relationship `json:"target"`
+	Changes map[string]any       `json:"changes"`
+}
+
+// ViewDiff represents differences in views
+type ViewDiff struct {
+	Missing  []*models.View `json:"missing"` // Views in source but not in target
+	Extra    []*models.View `json:"extra"`   // Views in target but not in source
+	Modified []*ViewChange  `json:"modified"` // Views that exist in both but differ
+}
+
+// ViewChange represents a modified view
+type ViewChange struct {
+	Name    string         `json:"name"`
+	Source  *models.View   `json:"source"`
+	Target  *models.View   `json:"target"`
+	Changes map[string]any `json:"changes"`
+}
+
+// SequenceDiff represents differences in sequences
+type SequenceDiff struct {
+	Missing  []*models.Sequence `json:"missing"`  // Sequences in source but not in target
+	Extra    []*models.Sequence `json:"extra"`    // Sequences in target but not in source
+	Modified []*SequenceChange  `json:"modified"` // Sequences that exist in both but differ
+}
+
+// SequenceChange represents a modified sequence
+type SequenceChange struct {
+	Name    string           `json:"name"`
+	Source  *models.Sequence `json:"source"`
+	Target  *models.Sequence `json:"target"`
+	Changes map[string]any   `json:"changes"`
+}
+
+// Summary provides counts for quick overview
+type Summary struct {
+	Schemas      SchemaSummary      `json:"schemas"`
+	Tables       TableSummary       `json:"tables"`
+	Columns      ColumnSummary      `json:"columns"`
+	Indexes      IndexSummary       `json:"indexes"`
+	Constraints  ConstraintSummary  `json:"constraints"`
+	Relationships RelationshipSummary `json:"relationships"`
+	Views        ViewSummary        `json:"views"`
+	Sequences    SequenceSummary    `json:"sequences"`
+}
+
+type SchemaSummary struct {
+	Missing  int `json:"missing"`
+	Extra    int `json:"extra"`
+	Modified int `json:"modified"`
+}
+
+type TableSummary struct {
+	Missing  int `json:"missing"`
+	Extra    int `json:"extra"`
+	Modified int `json:"modified"`
+}
+
+type ColumnSummary struct {
+	Missing  int `json:"missing"`
+	Extra    int `json:"extra"`
+	Modified int `json:"modified"`
+}
+
+type IndexSummary struct {
+	Missing  int `json:"missing"`
+	Extra    int `json:"extra"`
+	Modified int `json:"modified"`
+}
+
+type ConstraintSummary struct {
+	Missing  int `json:"missing"`
+	Extra    int `json:"extra"`
+	Modified int `json:"modified"`
+}
+
+type RelationshipSummary struct {
+	Missing  int `json:"missing"`
+	Extra    int `json:"extra"`
+	Modified int `json:"modified"`
+}
+
+type ViewSummary struct {
+	Missing  int `json:"missing"`
+	Extra    int `json:"extra"`
+	Modified int `json:"modified"`
+}
+
+type SequenceSummary struct {
+	Missing  int `json:"missing"`
+	Extra    int `json:"extra"`
+	Modified int `json:"modified"`
+}