package parse

import (
	"testing"

	"git.makaay.nl/mauricem/go-parsekit/parse"
)

func TestStartTable(t *testing.T) {
	parser := newParser()
	wrapper := func(p *parse.API) { parser.startTable(p) }
	testParse(t, parser, wrapper, parseTest{"(not a table)", "{}", "unexpected input (expected a table) at start of file"})
}

func TestTableKey(t *testing.T) {
	for _, test := range []parseTest{
		{"[", `{}`, `unexpected end of file (expected a key name) at line 1, column 2`},
		{" \t [", `{}`, `unexpected end of file (expected a key name) at line 1, column 5`},
		{" \t [key", `{}`, `unexpected end of file (expected closing ']' for table name) at line 1, column 8`},
		{" \t [key.", `{}`, `unexpected end of file (expected a key name) at line 1, column 9`},
		{" \t [key.'sub key'", `{}`, `unexpected end of file (expected closing ']' for table name) at line 1, column 18`},
		{" \t [key.'sub key'  \t]", `{"key": {"sub key": {}}}`, ``},
		{" \t [key.'sub key'  \t]  \t  ", `{"key": {"sub key": {}}}`, ``},
		{" \t [key.'sub key'  \t]  \t  \n", `{"key": {"sub key": {}}}`, ``},
		{" \t [key.'sub key'  \t]# with comment\n", `{"key": {"sub key": {}}}`, ``},
		{" \t [key.'sub key'  \t]  \t  # with comment\n", `{"key": {"sub key": {}}}`, ``},
	} {
		p := newParser()
		testParse(t, p, p.startTable, test)
	}
}

func TestTable(t *testing.T) {
	for _, test := range []parseTest{
		{"[a]", `{"a": {}}`, ``},
		{"['a key']", `{"a key": {}}`, ``},
		{"[\"a key\"]", `{"a key": {}}`, ``},
		{"[\"a key\".'sub'.key]", `{"a key": {"sub": {"key": {}}}}`, ``},
		{"[a]\nx=1234", `{"a": {"x": 1234}}`, ``},
		{"[a]\nx=1234\ny='string'", `{"a": {"x": 1234, "y": "string"}}`, ``},
		{"[a]\n[b]", `{"a": {}, "b": {}}`, ``},
		{"[a]\n[a.b]\n[a.b.c]\n[a.d]\nx=1", `{"a": {"b": {"c": {}}, "d": {"x": 1}}}`, ``},
		{"[a]\n[b] #another table \na=1\n", `{"a": {}, "b": {"a": 1}}`, ``},
		{"[a]\nx=1\ny=2\n[b] #another table \nx=1\ny=2021-01-01", `{"a": {"x": 1, "y": 2}, "b": {"x": 1, "y": 2021-01-01}}`, ``},
		{"[a]\nx=1\ny=2\n[a.b] #subtable \nx=1\ny=2021-01-01", `{"a": {"b": {"x": 1, "y": 2021-01-01}, "x": 1, "y": 2}}`, ``},
		{"[a]\n[a]", `{"a": {}}`, `invalid table: table value already exists at key [a] at line 2, column 4`},
	} {
		p := newParser()
		testParse(t, p, p.startTable, test)
	}
}

func TestArrayOfTableKey(t *testing.T) {
	for _, test := range []parseTest{
		{"[[", `{}`, `unexpected end of file (expected a key name) at line 1, column 3`},
		{" \t [[", `{}`, `unexpected end of file (expected a key name) at line 1, column 6`},
		{" \t [[key", `{}`, `unexpected end of file (expected closing ']]' for array of tables name) at line 1, column 9`},
		{" \t [[key.", `{}`, `unexpected end of file (expected a key name) at line 1, column 10`},
		{" \t [[key.'sub key'", `{}`, `unexpected end of file (expected closing ']]' for array of tables name) at line 1, column 19`},
		{" \t [[key.'sub key'  \t]]", `{"key": {"sub key": [{}]}}`, ``},
		{" \t [[key.'sub key'  \t]]  \t  ", `{"key": {"sub key": [{}]}}`, ``},
		{" \t [[key.'sub key'  \t]]  \t  \n", `{"key": {"sub key": [{}]}}`, ``},
		{" \t [[key.'sub key'  \t]]# with comment\n", `{"key": {"sub key": [{}]}}`, ``},
		{" \t [[key.'sub key'  \t]]  \t  # with comment\n", `{"key": {"sub key": [{}]}}`, ``},
	} {
		p := newParser()
		testParse(t, p, p.startTable, test)
	}
}

func TestArrayOfTables(t *testing.T) {
	for _, test := range []parseTest{
		{"[[a]]", `{"a": [{}]}`, ``},
		{"[[a]]\n[['a']]\n[[\"a\"]]", `{"a": [{}, {}, {}]}`, ``},
		{"[[a]]\n[['a']]\n[b]\n[[\"a\"]]", `{"a": [{}, {}, {}], "b": {}}`, ``},
		{"[[a]]\nx=1\n[['a']]\nx=2\ny=3\n[[\"a\"]]", `{"a": [{"x": 1}, {"x": 2, "y": 3}, {}]}`, ``},
		{"[a]\n[[a.b]]\nx=1\n[[a.b]]\nx=2\n[a.c]\ny=1234", `{"a": {"b": [{"x": 1}, {"x": 2}], "c": {"y": 1234}}}`, ``},
		{"[a]\n[[a]]", `{"a": {}}`, `invalid table array: table value already exists at key [a] at line 2, column 6`},
	} {
		p := newParser()
		testParse(t, p, p.startTable, test)
	}
}

func TestStartInlineTable(t *testing.T) {
	parser := newParser()
	wrapper := func(p *parse.API) { parser.parseInlineTable(p) }
	testParse(t, parser, wrapper, parseTest{"(not an inline table)", "{}", "unexpected input (expected an inline table) at start of file"})
}

func TestInlineTable(t *testing.T) {
	for _, test := range []parseTest{
		{"x={}", `{"x": {}}`, ``},
		{"x={} # comments", `{"x": {}}`, ``},
		{"x={ # comments }", `{}`, `unexpected input (expected a key name) at line 1, column 5`},
		{"x={a = 1, b\t=2}", `{"x": {"a": 1, "b": 2}}`, ``},
		{"x={a='string', b=\"values\"}", `{"x": {"a": "string", "b": "values"}}`, ``},
		{"x={a={}}", `{"x": {"a": {}}}`, ``},
		{"x={a=[{}]}", `{"x": {"a": [{}]}}`, ``},
		{"x=[{b=1},{b=2},{b=3}]", `{"x": [{"b": 1}, {"b": 2}, {"b": 3}]}`, ``},
		{"x={a=[{b=1},{b=2},{b=3}]}", `{"x": {"a": [{"b": 1}, {"b": 2}, {"b": 3}]}}`, ``},
		{"x={", `{}`, `unexpected end of file (expected a key name) at line 1, column 4`},
		{"x={a", `{}`, `unexpected end of file (expected a value assignment) at line 1, column 5`},
		{"x={a=", `{}`, `unexpected end of file (expected a value) at line 1, column 6`},
		{"x={a=,", `{}`, `unexpected input (expected a value) at line 1, column 6`},
		{"x={a=1", `{}`, `unexpected end of file (expected an array separator) at line 1, column 7`},
		{"x={a=1,", `{}`, `unexpected end of file (expected a key name) at line 1, column 8`},
		{"x={a=1,}", `{}`, `unexpected input (expected a key name) at line 1, column 8`},
		{"x={a=1,a=2}", `{}`, `invalid key/value pair: integer value already exists at key [a] at line 1, column 11`},
		{"x={a={b=1,b=2}}", `{}`, `invalid key/value pair: integer value already exists at key [b] at line 1, column 14`},
	} {
		p := newParser()
		testParse(t, p, p.startDocument, test)
	}
}
