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// Copyright © 2014 Steve Francia <[email protected]>.
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//
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// Use of this source code is governed by an MIT-style
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// license that can be found in the LICENSE file.
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package cast
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import (
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	"encoding/json"
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	"fmt"
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	"html/template"
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	"strconv"
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	"time"
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)
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// ToBoolE casts any value to a bool type.
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func ToBoolE(i any) (bool, error) {
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	i, _ = indirect(i)
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	switch b := i.(type) {
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	case bool:
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		return b, nil
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	case nil:
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		return false, nil
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	case int:
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		return b != 0, nil
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	case int8:
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		return b != 0, nil
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	case int16:
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		return b != 0, nil
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	case int32:
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		return b != 0, nil
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	case int64:
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		return b != 0, nil
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	case uint:
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		return b != 0, nil
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	case uint8:
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		return b != 0, nil
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	case uint16:
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		return b != 0, nil
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	case uint32:
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		return b != 0, nil
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	case uint64:
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		return b != 0, nil
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	case float32:
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		return b != 0, nil
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	case float64:
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		return b != 0, nil
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	case time.Duration:
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		return b != 0, nil
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	case string:
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		return strconv.ParseBool(b)
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	case json.Number:
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		v, err := ToInt64E(b)
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		if err == nil {
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			return v != 0, nil
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		}
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		return false, fmt.Errorf(errorMsg, i, i, false)
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	default:
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		if i, ok := resolveAlias(i); ok {
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			return ToBoolE(i)
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		}
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		return false, fmt.Errorf(errorMsg, i, i, false)
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	}
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}
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// ToStringE casts any value to a string type.
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func ToStringE(i any) (string, error) {
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	switch s := i.(type) {
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	case string:
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		return s, nil
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	case bool:
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		return strconv.FormatBool(s), nil
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	case float64:
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		return strconv.FormatFloat(s, 'f', -1, 64), nil
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	case float32:
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		return strconv.FormatFloat(float64(s), 'f', -1, 32), nil
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	case int:
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		return strconv.Itoa(s), nil
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	case int8:
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		return strconv.FormatInt(int64(s), 10), nil
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	case int16:
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		return strconv.FormatInt(int64(s), 10), nil
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	case int32:
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		return strconv.FormatInt(int64(s), 10), nil
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	case int64:
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		return strconv.FormatInt(s, 10), nil
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	case uint:
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		return strconv.FormatUint(uint64(s), 10), nil
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	case uint8:
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		return strconv.FormatUint(uint64(s), 10), nil
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	case uint16:
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		return strconv.FormatUint(uint64(s), 10), nil
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	case uint32:
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		return strconv.FormatUint(uint64(s), 10), nil
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	case uint64:
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		return strconv.FormatUint(s, 10), nil
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	case json.Number:
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		return s.String(), nil
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	case []byte:
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		return string(s), nil
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	case template.HTML:
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		return string(s), nil
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	case template.URL:
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		return string(s), nil
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	case template.JS:
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		return string(s), nil
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	case template.CSS:
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		return string(s), nil
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	case template.HTMLAttr:
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		return string(s), nil
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	case nil:
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		return "", nil
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	case fmt.Stringer:
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		return s.String(), nil
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	case error:
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		return s.Error(), nil
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	default:
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		if i, ok := indirect(i); ok {
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			return ToStringE(i)
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		}
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		if i, ok := resolveAlias(i); ok {
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			return ToStringE(i)
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		}
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		return "", fmt.Errorf(errorMsg, i, i, "")
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	}
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}
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